Verified Nov 1, 2026 · Source: NANPA CO Code Assignment Records
Area code 518 prefixes
775 of the 786 possible NXX blocks are assigned in area code 518 (98.6% of capacity), spread across 135 rate centers and 62 holders. The largest holders are VERIZON NEW YORK, INC. (216 blocks, 27.9%), PAETEC ITEL, LLC (59 blocks, 7.6%), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY (58 blocks, 7.5%). Grouped by brand, Verizon accounts for 278 blocks; brand-attributable holders cover 86% of the code, and the rest are CLECs, VoIP wholesalers and regional carriers that trade under their own names. The assignment records here run from 2001-03-29 to 2024-12-06, with 27 blocks handed out in 2016 alone. 600 blocks (77%) are in thousands-block pooling, meaning the block is shared between carriers in 1,000-number lots rather than held whole – which is why a single NXX can serve several carriers at once. 84 were growth assignments – additional blocks to a carrier that had already filled its earlier ones.
775 assigned blocks of 786
135 rate centers
62 holders of record
77% in thousands-block pooling
Largest holders in 518
| Holder of record, as NANPA names it | Brand | Blocks | Share |
|---|---|---|---|
| VERIZON NEW YORK, INC. | Verizon | 216 | 27.9% |
| PAETEC ITEL, LLC | Windstream | 59 | 7.6% |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | Verizon | 58 | 7.5% |
| NEW CINGULAR WIRELESS PCS, LLC - DC | AT&T | 45 | 5.8% |
| TC SYSTEMS, INC. - NY | AT&T | 35 | 4.5% |
| TVC ALBANY, INC. DBA FIRSTLIGHT FIBER | – | 33 | 4.3% |
| TWC IP ENABLED SERVICES, LLC | Charter | 27 | 3.5% |
| LEVEL 3 COMMUNICATIONS, LLC - NY | Lumen | 27 | 3.5% |
| CITIZENS TELECOMM CO OF NY DBA FRONTIER COMM OF NY | Frontier | 26 | 3.4% |
| ONVOY, LLC- NY | Onvoy | 25 | 3.2% |
| METROPCS, INC. | T-Mobile | 23 | 3% |
| LEVEL 3 TELECOM OF NEW YORK, LP - NY | Lumen | 20 | 2.6% |
Names are printed as they appear in the assignment records, which is the legal entity rather than the brand. Holding a block is not the same as serving the numbers in it: portability moves numbers between carriers and pooling splits a block between several.
Rate centers with their own page
Rate centers where at least three blocks are assigned, excluding the numbered metro zone codes. The remainder are in the full table below.
ALBANY 200SCHENCTADY 50GLENSFALLS 45TROY 34COLONIE 34PLATTSBG 31SARATOGSPG 21AMSTERDAM 14HUDSON 13GLOVERSVL 11BALLSTNSPA 10MALONE 9LAKEPLACID 8SARANAC LK 8CATSKILL 7COBLESKILL 6MECHANICVL 6KINDERHOOK 6ALTAMONT 5TICONDROGA 5JOHNSTOWN 5JONESVILLE 4ROUND LAKE 4FTCOVINGTN 4CHATHAM 4GALWAY 4HOOSICKFLS 3CROWNPOINT 3ELIZABTHTN 3CENTRALBDG 3OAK HILL 3BOLTON LDG 3CAMBRIDGE 3HUNTER 3SUMMIT 3MIDDLEBG 3CAIRO 3CASTLETON 3GRANVILLE 3SCHROON LK 3GREENFLCTR 3SOBETHLEHM 3WARRENSBG 3SCHUYLERVL 3VOORHEESVL 3GREENWICH 3SALEM 3TANNERSVL 3MILLERTON 3CLARKSVL 3FORT ANN 3GREENVILLE 3LAKEGEORGE 3AVERILL PK 3BERNE 3MARIAVILLE 3WILLSBORO 3
All 775 assigned blocks
One row per NXX. “Pooled” means carriers draw 1,000-number lots from the block rather than holding all 10,000, so a pooled prefix can belong to several carriers at once. “Not in service” means assigned but not yet open for calls – a caller ID from one of those is necessarily spoofed. The holder column gives the brand where the legal entity maps to one; the full legal names are in the holders table above, exactly as NANPA records them.
| Prefix | Holder of record | Rate center | Assigned | Pooled | In service |
|---|---|---|---|---|---|
| 518-200 | CONTACT COMMUNICATIONS, INC. | PLATTSBG | – | – | yes |
| 518-201 | Charter | PAULSMITHS | – | yes | yes |
| 518-202 | Lumen | GLEN | – | yes | yes |
| 518-203 | AT&T | TROY | – | yes | yes |
| 518-204 | Charter | MOOERS | – | yes | yes |
| 518-205 | Lumen | HOOSICKFLS | – | yes | yes |
| 518-206 | Charter | ROUSES PT | – | yes | yes |
| 518-207 | Lumen | ALBANY | – | yes | yes |
| 518-208 | Charter | CHAMPLAIN | – | yes | yes |
| 518-209 | T-Mobile | ALBANY | – | yes | yes |
| 518-210 | T-Mobile | ALBANY | – | yes | yes |
| 518-212 | Lumen | AMSTERDAM | – | yes | yes |
| 518-213 | Lumen | COLONIE | – | yes | yes |
| 518-214 | Charter | ROTERDMJCT | – | yes | yes |
| 518-215 | Charter | CHAZY | – | yes | yes |
| 518-216 | Charter | CROWNPOINT | – | yes | yes |
| 518-217 | AT&T | ELIZABTHTN | – | yes | yes |
| 518-218 | Verizon | COLONIE | – | yes | yes |
| 518-219 | Telnyx | PLATTSBG | 2016-12-05 | yes | yes |
| 518-220 | Verizon | COLONIE | – | yes | yes |
| 518-221 | T-Mobile | ALBANY | – | yes | yes |
| 518-222 | Verizon | GLENSFALLS | 2001-11-09 | – | yes |
| 518-223 | AT&T | GLENSFALLS | – | yes | yes |
| 518-224 | AT&T | GLOVERSVL | – | yes | yes |
| 518-225 | Verizon | ALBANY | – | – | yes |
| 518-226 | Verizon | SARATOGSPG | – | yes | yes |
| 518-227 | Bandwidth | ALBANY | 2008-09-03 | yes | yes |
| 518-228 | Spok | COLONIE | – | – | yes |
| 518-229 | T-Mobile | ALBANY | – | yes | yes |
| 518-230 | Spok | COLONIE | – | – | yes |
| 518-231 | AT&T | CENTRALBDG | – | – | yes |
| 518-232 | AT&T | GLENSFALLS | – | – | yes |
| 518-233 | Verizon | TROY | – | yes | yes |
| 518-234 | Verizon | COBLESKILL | – | – | yes |
| 518-235 | Verizon | TROY | – | – | yes |
| 518-236 | CHAMPLAIN TEL. CO. | MOOERS | – | – | yes |
| 518-237 | Verizon | TROY | – | – | yes |
| 518-238 | Verizon | TROY | – | yes | yes |
| 518-239 | Verizon | OAK HILL | – | yes | yes |
| 518-240 | AT&T | BOLTON LDG | – | yes | yes |
| 518-241 | AT&T | LAKEPLACID | – | yes | yes |
| 518-242 | AT&T | ALBANY | – | yes | yes |
| 518-243 | AT&T | SCHENCTADY | – | yes | yes |
| 518-244 | AT&T | TROY | – | yes | yes |
| 518-245 | AT&T | SARATOGSPG | – | yes | yes |
| 518-246 | AT&T | AMSTERDAM | – | yes | yes |
| 518-247 | AT&T | PLATTSBG | – | yes | yes |
| 518-248 | AT&T | ALBANY | – | – | yes |
| 518-249 | Lumen | HUDSON | – | yes | yes |
| 518-250 | Windstream | COLONIE | – | yes | yes |
| 518-251 | Frontier | NORTHCREEK | – | yes | yes |
| 518-252 | AT&T | CAMBRIDGE | – | yes | yes |
| 518-253 | T-Mobile | ALBANY | – | – | yes |
| 518-254 | Verizon | COBLESKILL | – | yes | yes |
| 518-255 | AT&T | COBLESKILL | – | yes | yes |
| 518-256 | AT&T | ALBANY | – | yes | yes |
| 518-257 | Verizon | ALBANY | – | yes | yes |
| 518-258 | AT&T | ALBANY | – | yes | yes |
| 518-259 | Spok | ALBANY | – | – | yes |
| 518-260 | AT&T | GLENSFALLS | – | – | yes |
| 518-261 | Windstream | OAK HILL | – | yes | yes |
| 518-262 | Verizon | ALBANY | – | – | yes |
| 518-263 | Verizon | HUNTER | – | yes | yes |
| 518-264 | Windstream | ALBANY | 2001-03-29 | – | yes |
| 518-265 | Verizon | ALBANY | – | – | yes |
| 518-266 | Verizon | TROY | – | – | yes |
| 518-267 | AT&T | HUDSON | – | yes | yes |
| 518-268 | AT&T | TROY | – | yes | yes |
| 518-269 | AT&T | ALBANY | – | yes | yes |
| 518-270 | Verizon | TROY | – | yes | yes |
| 518-271 | Verizon | TROY | – | yes | yes |
| 518-272 | Verizon | TROY | – | – | yes |
| 518-273 | Verizon | TROY | – | – | yes |
| 518-274 | Verizon | TROY | – | – | yes |
| 518-275 | Verizon | ALBANY | 2001-08-20 | yes | yes |
| 518-276 | Windstream | TROY | – | – | yes |
| 518-277 | AT&T | COLONIE | 2024-12-06 | yes | yes |
| 518-278 | TVC ALBANY, INC. DBA FIRSTLIGHT FIBER | JONESVILLE | – | yes | yes |
| 518-279 | Verizon | TROY | – | yes | yes |
| 518-280 | Windstream | SCHENCTADY | – | yes | yes |
| 518-281 | Verizon | ALBANY | – | – | yes |
| 518-282 | Verizon | HAMPTON | – | yes | yes |
| 518-283 | Verizon | TROY | – | – | yes |
| 518-284 | Verizon | SHARON SPG | – | yes | yes |
| 518-285 | Verizon | TROY | – | yes | yes |
| 518-286 | Verizon | TROY | – | yes | yes |
| 518-287 | MIDDLEBURGH TEL. CO. | SUMMIT | – | – | yes |
| 518-288 | Lumen | BALLSTNSPA | – | yes | yes |
| 518-289 | TVC ALBANY, INC. DBA FIRSTLIGHT FIBER | ROUND LAKE | – | yes | yes |
| 518-290 | Bandwidth | SARATOGSPG | – | yes | yes |
| 518-291 | AT&T | CATSKILL | 2004-03-11 | yes | yes |
| 518-292 | AT&T | ALBANY | – | yes | yes |
| 518-293 | Verizon | SARANAC | – | yes | yes |
| 518-294 | Verizon | RICHMONDVL | – | yes | yes |
| 518-295 | MIDDLEBURGH TEL. CO. | MIDDLEBG | – | – | yes |
| 518-296 | MIDDLEBURGH TEL. CO. | BRAMANVL | – | – | yes |
| 518-297 | CHAMPLAIN TEL. CO. | ROUSES PT | – | – | yes |
| 518-298 | CHAMPLAIN TEL. CO. | CHAMPLAIN | – | – | yes |
| 518-299 | Verizon | PRATTSVL | – | yes | yes |
| 518-300 | Verizon | ALBANY | 2010-05-10 | yes | yes |
| 518-301 | AT&T | ALBANY | – | yes | yes |
| 518-302 | Lumen | LAKEPLACID | 2001-05-02 | yes | yes |
| 518-303 | Lumen | CATSKILL | – | yes | yes |
| 518-304 | AT&T | SARANAC LK | – | yes | yes |
| 518-305 | Lumen | BALLSTNSPA | 2009-09-17 | yes | yes |
| 518-306 | AT&T | SARATOGSPG | – | yes | yes |
| 518-307 | T-Mobile | GLENSFALLS | 2001-07-10 | yes | yes |
| 518-308 | Lumen | TROY | – | yes | yes |
| 518-309 | Charter | BALLSTNSPA | – | yes | yes |
| 518-310 | Charter | PLATTSBG | 2010-06-14 | yes | yes |
| 518-312 | Lumen | ALBANY | – | yes | yes |
| 518-313 | AT&T | COLONIE | 2010-10-22 | yes | yes |
| 518-314 | Windstream | PLATTSBG | – | yes | yes |
| 518-315 | COMMIO, LLC | ALTAMONT | 2024-01-31 | yes | yes |
| 518-316 | T-Mobile | SARATOGSPG | – | yes | yes |
| 518-317 | SLIC NETWORK SOLUTIONS, INC. - NY | MALONE | 2010-10-22 | yes | yes |
| 518-318 | AT&T | CAIRO | 2010-09-16 | yes | yes |
| 518-319 | Charter | MALONE | 2010-07-07 | yes | yes |
| 518-320 | AT&T | ALBANY | – | yes | yes |
| 518-321 | Verizon | GLENSFALLS | – | yes | yes |
| 518-322 | AT&T | ALBANY | – | yes | yes |
| 518-323 | TVC ALBANY, INC. DBA FIRSTLIGHT FIBER | SARANAC LK | – | yes | yes |
| 518-324 | PRIMELINK, INC. - NY | PLATTSBG | – | yes | yes |
| 518-325 | TACONIC TEL. CORP. | HILLSDALE | – | – | yes |
| 518-326 | Windstream | TROY | – | yes | yes |
| 518-327 | Frontier | PAULSMITHS | – | yes | yes |
| 518-328 | Windstream | TROY | – | yes | yes |
| 518-329 | TACONIC TEL. CORP. | COPAKE | – | yes | yes |
| 518-330 | T-Mobile | ALBANY | – | yes | yes |
| 518-331 | T-Mobile | ALBANY | – | yes | yes |
| 518-332 | Verizon | GLOVERSVL | – | yes | yes |
| 518-333 | Charter | FTCOVINGTN | 2010-09-07 | yes | yes |
| 518-334 | T-Mobile | COLONIE | 2001-05-15 | yes | yes |
| 518-335 | T-Mobile | PLATTSBG | 2001-10-26 | yes | yes |
| 518-336 | AT&T | CASTLETON | – | yes | yes |
| 518-337 | AT&T | ALBANY | – | yes | yes |
| 518-338 | Lumen | GLENSFALLS | – | yes | yes |
| 518-339 | Verizon | ALBANY | – | – | yes |
| 518-340 | CENTRAL VERMONT COMMUNICATIONS, INC. | ALBANY | 2001-04-23 | – | yes |
| 518-341 | Spok | SCHENCTADY | – | – | yes |
| 518-342 | Spok | SCHENCTADY | – | – | yes |
| 518-343 | Spok | ALBANY | – | – | yes |
| 518-344 | Verizon | SCHENCTADY | – | yes | yes |
| 518-345 | Lumen | GRANVILLE | 2008-01-22 | yes | yes |
| 518-346 | Verizon | SCHENCTADY | – | – | yes |
| 518-347 | Verizon | SCHENCTADY | – | yes | yes |
| 518-348 | Verizon | SCHENCTADY | – | yes | yes |
| 518-349 | American Messaging | ALBANY | – | – | yes |
| 518-350 | Windstream | SARATOGSPG | – | yes | yes |
| 518-351 | AT&T | SCHROON LK | – | yes | yes |
| 518-352 | Frontier | BLUEMTLAKE | – | yes | yes |
| 518-353 | AT&T | MALONE | 2002-03-21 | yes | yes |
| 518-354 | Verizon | SARANAC LK | 2002-03-21 | yes | yes |
| 518-355 | Verizon | SCHENCTADY | – | – | yes |
| 518-356 | Verizon | SCHENCTADY | – | – | yes |
| 518-357 | Verizon | SCHENCTADY | – | yes | yes |
| 518-358 | Verizon | FTCOVINGTN | – | yes | yes |
| 518-359 | Verizon | TUPPERLAKE | – | yes | yes |
| 518-360 | AT&T | ALBANY | – | yes | yes |
| 518-361 | T-Mobile | GLENSFALLS | – | yes | yes |
| 518-362 | Lumen | COLONIE | – | yes | yes |
| 518-363 | Verizon | BALLSTNSPA | – | yes | yes |
| 518-364 | T-Mobile | ALBANY | – | – | yes |
| 518-365 | T-Mobile | ALBANY | – | yes | yes |
| 518-366 | AT&T | ALBANY | – | – | yes |
| 518-367 | Verizon | ALBANY | – | – | yes |
| 518-368 | AT&T | ALBANY | – | – | yes |
| 518-369 | Verizon | ALBANY | – | – | yes |
| 518-370 | Verizon | SCHENCTADY | – | yes | yes |
| 518-371 | Verizon | SCHENCTADY | – | – | yes |
| 518-372 | Verizon | SCHENCTADY | – | – | yes |
| 518-373 | Verizon | SCHENCTADY | – | – | yes |
| 518-374 | Verizon | SCHENCTADY | – | – | yes |
| 518-375 | Lumen | ALBANY | 2002-01-30 | yes | yes |
| 518-376 | T-Mobile | ALBANY | – | yes | yes |
| 518-377 | Verizon | SCHENCTADY | – | – | yes |
| 518-378 | T-Mobile | ALBANY | 2001-11-30 | yes | yes |
| 518-379 | Verizon | SCHENCTADY | 2002-04-18 | yes | yes |
| 518-380 | Onvoy | ALBANY | 2010-11-04 | yes | yes |
| 518-381 | Verizon | SCHENCTADY | – | yes | yes |
| 518-382 | Verizon | SCHENCTADY | – | – | yes |
| 518-383 | Verizon | SCHENCTADY | – | – | yes |
| 518-384 | Verizon | SCHENCTADY | – | yes | yes |
| 518-385 | Windstream | SCHENCTADY | 2001-04-16 | – | yes |
| 518-386 | Verizon | SCHENCTADY | – | yes | yes |
| 518-387 | Verizon | SCHENCTADY | – | yes | yes |
| 518-388 | Verizon | SCHENCTADY | – | – | yes |
| 518-389 | AT&T | COLONIE | – | yes | yes |
| 518-390 | Verizon | ALBANY | 2011-04-07 | yes | yes |
| 518-391 | Verizon | ALBANY | – | yes | yes |
| 518-392 | TACONIC TEL. CORP. | CHATHAM | – | – | yes |
| 518-393 | Verizon | SCHENCTADY | – | – | yes |
| 518-394 | Windstream | AMSTERDAM | – | yes | yes |
| 518-395 | Verizon | SCHENCTADY | – | – | yes |
| 518-396 | Verizon | ALBANY | – | yes | yes |
| 518-397 | TACONIC TEL. CORP. | CHATHAM | – | – | yes |
| 518-398 | TACONIC TEL. CORP. | PINEPLAINS | – | yes | yes |
| 518-399 | Verizon | SCHENCTADY | – | – | yes |
| 518-400 | Charter | ROUND LAKE | 2010-10-06 | yes | yes |
| 518-401 | Onvoy | GLENSFALLS | 2015-12-21 | yes | yes |
| 518-402 | Windstream | ALBANY | – | – | yes |
| 518-403 | Charter | LK LUZERNE | 2010-10-06 | yes | yes |
| 518-404 | CONTACT COMMUNICATIONS, INC. | MALONE | – | – | yes |
| 518-405 | NEW DIMENSION WIRELESS LTD | PLATTSBG | 2011-04-19 | yes | yes |
| 518-406 | Lumen | JONESVILLE | – | yes | yes |
| 518-407 | NUSO, LLC | ALBANY | 2012-10-28 | yes | yes |
| 518-408 | Verizon | ALBANY | – | – | yes |
| 518-409 | T-Mobile | GLENSFALLS | – | yes | yes |
| 518-410 | Verizon | ALBANY | 2012-05-22 | yes | yes |
| 518-412 | TVC ALBANY, INC. DBA FIRSTLIGHT FIBER | ELIZABTHTN | – | yes | yes |
| 518-413 | Onvoy | BOLTON LDG | 2017-05-09 | yes | yes |
| 518-414 | Verizon | ALBANY | 2011-07-11 | yes | yes |
| 518-415 | Verizon | GLENSFALLS | 2011-07-11 | yes | yes |
| 518-416 | Verizon | ALBANY | – | yes | yes |
| 518-417 | Verizon | ALBANY | 2012-05-14 | yes | yes |
| 518-418 | TVC ALBANY, INC. DBA FIRSTLIGHT FIBER | LAKEPLACID | – | yes | yes |
| 518-419 | Verizon | ALBANY | 2012-05-18 | yes | yes |
| 518-420 | Lumen | PLATTSBG | – | yes | yes |
| 518-421 | AT&T | ALBANY | – | – | yes |
| 518-422 | Spok | ALBANY | – | – | yes |
| 518-423 | AT&T | ALBANY | – | – | yes |
| 518-424 | Verizon | ALBANY | – | – | yes |
| 518-425 | Verizon | BRAINADSVL | – | yes | yes |
| 518-426 | Verizon | ALBANY | – | – | yes |
| 518-427 | Verizon | ALBANY | – | – | yes |
| 518-428 | AT&T | ALBANY | – | – | yes |
| 518-429 | Lumen | ALBANY | – | yes | yes |
| 518-430 | Lumen | SARATOGSPG | – | yes | yes |
| 518-431 | Verizon | ALBANY | – | yes | yes |
| 518-432 | Verizon | ALBANY | – | – | yes |
| 518-433 | Verizon | ALBANY | – | yes | yes |
| 518-434 | Verizon | ALBANY | – | – | yes |
| 518-435 | Verizon | ALBANY | – | yes | yes |
| 518-436 | Verizon | ALBANY | – | – | yes |
| 518-437 | Verizon | ALBANY | – | – | yes |
| 518-438 | Verizon | ALBANY | – | – | yes |
| 518-439 | Verizon | ALBANY | – | – | yes |
| 518-440 | FIDIUM ENTERPRISE SERVICES, LLC | CHATHAM | 2012-05-21 | yes | yes |
| 518-441 | Verizon | ALBANY | – | – | yes |
| 518-442 | Verizon | ALBANY | – | – | yes |
| 518-443 | Verizon | ALBANY | – | yes | yes |
| 518-444 | Lumen | ATHENS | 2002-04-15 | yes | yes |
| 518-445 | Verizon | ALBANY | – | yes | yes |
| 518-446 | Verizon | ALBANY | – | – | yes |
| 518-447 | Verizon | ALBANY | – | yes | yes |
| 518-448 | Charter | GLOVERSVL | 2017-01-27 | yes | yes |
| 518-449 | Verizon | ALBANY | – | – | yes |
| 518-450 | Windstream | SARATOGSPG | – | yes | yes |
| 518-451 | Verizon | ALBANY | – | yes | yes |
| 518-452 | Verizon | COLONIE | – | – | yes |
| 518-453 | Verizon | ALBANY | – | – | yes |
| 518-454 | Verizon | ALBANY | – | yes | yes |
| 518-455 | Verizon | ALBANY | – | – | yes |
| 518-456 | Verizon | COLONIE | – | – | yes |
| 518-457 | Verizon | ALBANY | – | – | yes |
| 518-458 | Verizon | ALBANY | – | – | yes |
| 518-459 | Verizon | ALBANY | – | – | yes |
| 518-460 | Bandwidth | GALWAY | 2011-03-21 | yes | yes |
| 518-461 | Verizon | ALBANY | – | – | yes |
| 518-462 | Verizon | ALBANY | – | – | yes |
| 518-463 | Verizon | ALBANY | – | – | yes |
| 518-464 | Verizon | COLONIE | – | – | yes |
| 518-465 | Verizon | ALBANY | – | – | yes |
| 518-466 | AT&T | ALBANY | – | – | yes |
| 518-467 | Lumen | ELENBGDPOT | 2017-02-06 | yes | yes |
| 518-468 | Bandwidth | GREENFLCTR | 2011-03-21 | yes | yes |
| 518-469 | Verizon | ALBANY | – | – | yes |
| 518-470 | T-Mobile | ALBANY | – | yes | yes |
| 518-471 | Verizon | ALBANY | – | – | yes |
| 518-472 | Verizon | ALBANY | – | yes | yes |
| 518-473 | Windstream | ALBANY | – | – | yes |
| 518-474 | Windstream | ALBANY | – | – | yes |
| 518-475 | Verizon | ALBANY | – | yes | yes |
| 518-476 | Verizon | ALBANY | – | – | yes |
| 518-477 | Verizon | ALBANY | – | yes | yes |
| 518-478 | Verizon | ALBANY | – | yes | yes |
| 518-479 | Verizon | ALBANY | – | yes | yes |
| 518-480 | Windstream | GLENSFALLS | – | yes | yes |
| 518-481 | Verizon | MALONE | – | yes | yes |
| 518-482 | Verizon | ALBANY | – | – | yes |
| 518-483 | Verizon | MALONE | – | – | yes |
| 518-484 | American Messaging | ALBANY | – | – | yes |
| 518-485 | Verizon | ALBANY | – | – | yes |
| 518-486 | Verizon | ALBANY | – | yes | yes |
| 518-487 | Verizon | ALBANY | – | yes | yes |
| 518-488 | Verizon | ALBANY | – | yes | yes |
| 518-489 | Verizon | ALBANY | – | – | yes |
| 518-490 | Windstream | BALLSTNSPA | – | yes | yes |
| 518-491 | Verizon | ALBANY | 2009-03-10 | yes | yes |
| 518-492 | Verizon | DANNEMORA | – | yes | yes |
| 518-493 | CHAZY & WESTPORT TEL. CORP. | WEST CHAZY | – | – | yes |
| 518-494 | Frontier | CHESTERTN | – | yes | yes |
| 518-495 | AT&T | ALBANY | – | – | yes |
| 518-496 | AT&T | ALBANY | – | – | yes |
| 518-497 | Verizon | CHATEAUGAY | – | yes | yes |
| 518-498 | Verizon | COLONIE | – | – | yes |
| 518-499 | Verizon | WHITEHALL | – | yes | yes |
| 518-500 | Onvoy | CENTRALBDG | – | yes | yes |
| 518-501 | Onvoy | SOBETHLEHM | 2016-03-07 | yes | yes |
| 518-502 | PRIMELINK, INC. - NY | GLENSFALLS | 2013-02-21 | yes | yes |
| 518-503 | AT&T | TICONDROGA | – | yes | yes |
| 518-504 | Charter | WARRENSBG | – | yes | yes |
| 518-505 | T-Mobile | ALBANY | – | yes | yes |
| 518-506 | T-Mobile | ALBANY | – | yes | yes |
| 518-507 | Lumen | SCHUYLERVL | – | yes | yes |
| 518-508 | Peerless | FREEHOLD | 2016-03-18 | yes | yes |
| 518-509 | Peerless | ROUND LAKE | 2016-02-11 | yes | yes |
| 518-510 | Peerless | PITTSTOWN | 2016-03-18 | yes | yes |
| 518-512 | TVC ALBANY, INC. DBA FIRSTLIGHT FIBER | ALBANY | 2005-11-10 | yes | yes |
| 518-513 | Peerless | VOORHEESVL | 2016-03-18 | yes | yes |
| 518-514 | Windstream | ALBANY | – | yes | yes |
| 518-515 | TELXMEDIA, INC. - NY | CROWNPOINT | – | yes | yes |
| 518-516 | Lumen | HAMPTON | 2017-07-10 | yes | yes |
| 518-517 | SEAMLESS GEOPORT COMM DBA MIDDLEBURGH TELEPHONE LD | COBLESKILL | 2015-05-02 | yes | yes |
| 518-518 | Bandwidth | ALBANY | 2022-09-21 | yes | yes |
| 518-519 | HD CARRIER LLC | RICHMONDVL | – | yes | yes |
| 518-520 | Bandwidth | PALENVILLE | 2011-03-21 | yes | yes |
| 518-521 | AT&T | MALONE | – | yes | yes |
| 518-522 | AT&T | ALBANY | – | – | yes |
| 518-523 | Verizon | LAKEPLACID | – | yes | yes |
| 518-524 | Verizon | LAKEPLACID | – | – | yes |
| 518-525 | Verizon | ALBANY | – | – | yes |
| 518-526 | AT&T | ALBANY | – | – | yes |
| 518-527 | Verizon | ALBANY | – | – | yes |
| 518-528 | T-Mobile | ALBANY | 2002-12-10 | yes | yes |
| 518-529 | Verizon | MOIRA | – | yes | yes |
| 518-530 | THE VOICE APPLICATION NETWORK, LLC | ALBANY | 2012-04-06 | yes | yes |
| 518-531 | AT&T | GREENWICH | – | yes | yes |
| 518-532 | Verizon | SCHROON LK | – | yes | yes |
| 518-533 | Windstream | ALBANY | – | yes | yes |
| 518-534 | Windstream | PLATTSBG | – | yes | yes |
| 518-535 | Bandwidth | DELANSON | 2012-01-20 | yes | yes |
| 518-536 | Windstream | PLATTSBG | – | yes | yes |
| 518-537 | GERMANTOWN TEL. CO., INC. | GERMANTOWN | – | – | yes |
| 518-538 | AT&T | GLENSFALLS | – | yes | yes |
| 518-539 | AT&T | MECHANICVL | 2001-04-11 | yes | yes |
| 518-540 | TVC ALBANY, INC. DBA FIRSTLIGHT FIBER | ALBANY | – | yes | yes |
| 518-541 | Charter | MECHANICVL | – | yes | yes |
| 518-542 | T-Mobile | ALBANY | – | yes | yes |
| 518-543 | Verizon | HAGUE | – | yes | yes |
| 518-544 | Charter | SUMMIT | 2011-05-20 | yes | yes |
| 518-545 | Verizon | ALBANY | 2011-12-06 | yes | yes |
| 518-546 | Verizon | PORT HENRY | – | yes | yes |
| 518-547 | Verizon | PUTNAM | – | yes | yes |
| 518-548 | Frontier | LKPLEASANT | – | yes | yes |
| 518-549 | Windstream | ALBANY | 2002-08-07 | yes | yes |
| 518-551 | Bandwidth | PERU | 2012-01-20 | yes | yes |
| 518-552 | Bandwidth | SALEM | 2012-01-20 | yes | yes |
| 518-553 | Bandwidth | VALLEY FLS | 2012-01-20 | yes | yes |
| 518-554 | SLIC NETWORK SOLUTIONS, INC. - NY | TUPPERLAKE | 2012-06-11 | yes | yes |
| 518-556 | WIDE VOICE, LLC - NY | COLONIE | 2012-12-17 | yes | yes |
| 518-557 | Lumen | SCHENCTADY | – | yes | yes |
| 518-558 | CROWN POINT NTWK TECH INC DBA BRIDGE POINT COMM-NY | TICONDROGA | 2012-12-17 | yes | yes |
| 518-559 | Onvoy | CAMBRIDGE | 2016-05-02 | yes | yes |
| 518-560 | Verizon | ALBANY | – | yes | yes |
| 518-561 | Verizon | PLATTSBG | – | – | yes |
| 518-562 | Verizon | PLATTSBG | – | – | yes |
| 518-563 | Verizon | PLATTSBG | – | – | yes |
| 518-564 | PRIMELINK, INC. - NY | PLATTSBG | – | yes | yes |
| 518-565 | Verizon | PLATTSBG | – | yes | yes |
| 518-566 | Verizon | PLATTSBG | – | yes | yes |
| 518-567 | Lumen | HUDSON | – | yes | yes |
| 518-568 | Frontier | ST JOHNSVL | – | yes | yes |
| 518-569 | Verizon | PLATTSBG | – | – | yes |
| 518-570 | AT&T | PLATTSBG | – | yes | yes |
| 518-571 | Frontier | GLOVERSVL | 2017-02-10 | yes | yes |
| 518-572 | AT&T | PLATTSBG | – | – | yes |
| 518-573 | Verizon | ALBANY | – | – | yes |
| 518-574 | CONTACT COMMUNICATIONS, INC. | PLATTSBG | – | – | yes |
| 518-575 | INTEGRATED PATH COMMUNICATIONS, LLC - NY | BERLIN | 2015-03-05 | yes | yes |
| 518-576 | Verizon | KEENE | – | yes | yes |
| 518-577 | AT&T | ALBANY | – | – | yes |
| 518-578 | Verizon | PLATTSBG | – | yes | yes |
| 518-579 | TVC ALBANY, INC. DBA FIRSTLIGHT FIBER | SCHENCTADY | – | yes | yes |
| 518-580 | Verizon | SARATOGSPG | – | yes | yes |
| 518-581 | Verizon | SARATOGSPG | – | yes | yes |
| 518-582 | Frontier | NEWCOMB | – | yes | yes |
| 518-583 | Verizon | SARATOGSPG | – | – | yes |
| 518-584 | Verizon | SARATOGSPG | – | – | yes |
| 518-585 | Verizon | TICONDROGA | – | yes | yes |
| 518-586 | TVC ALBANY, INC. DBA FIRSTLIGHT FIBER | TICONDROGA | – | yes | yes |
| 518-587 | Verizon | SARATOGSPG | – | – | yes |
| 518-588 | Verizon | ALBANY | 2002-07-19 | yes | yes |
| 518-589 | Verizon | TANNERSVL | – | yes | yes |
| 518-590 | Verizon | TROY | – | yes | yes |
| 518-591 | Verizon | ALBANY | – | yes | yes |
| 518-592 | Altice | MILLERTON | 2008-08-04 | yes | yes |
| 518-593 | Verizon | PLATTSBG | – | – | yes |
| 518-594 | Verizon | ELENBGDPOT | – | yes | yes |
| 518-595 | Windstream | ALTAMONT | – | yes | yes |
| 518-596 | METROPOLITAN TELECOMMUNICATIONS - NY | ALBANY | 2005-07-22 | yes | yes |
| 518-597 | CROWN POINT TEL. CORP. | CROWNPOINT | – | – | yes |
| 518-598 | Verizon | ALBANY | – | yes | yes |
| 518-599 | TELENGY L.L.C. - NY | ALBANY | 2015-04-29 | yes | yes |
| 518-600 | Onvoy | SARANAC | – | yes | yes |
| 518-601 | Windstream | MINEVILLE | 2006-07-10 | yes | yes |
| 518-602 | Windstream | BALLSTNSPA | – | yes | yes |
| 518-603 | Verizon | ALBANY | 2015-03-31 | yes | yes |
| 518-604 | Charter | CAROGALAKE | – | yes | yes |
| 518-605 | Verizon | ALBANY | 2005-09-14 | yes | yes |
| 518-606 | T-Mobile | ALBANY | – | yes | yes |
| 518-607 | COMMIO, LLC | CLARKSVL | 2024-02-01 | yes | yes |
| 518-608 | Lumen | COLONIE | – | yes | yes |
| 518-609 | Peerless | KATTSKL BY | 2015-12-18 | yes | yes |
| 518-610 | Verizon | KINDERHOOK | 2005-04-11 | yes | yes |
| 518-612 | AT&T | SCHENCTADY | – | yes | yes |
| 518-613 | Charter | MAYFIELD | – | yes | yes |
| 518-614 | T-Mobile | ALBANY | – | yes | yes |
| 518-615 | Windstream | GLENSFALLS | – | yes | yes |
| 518-616 | Lumen | ALBANY | 2016-03-09 | yes | yes |
| 518-617 | Lumen | CAIRO | 2017-07-28 | yes | yes |
| 518-618 | Lumen | ALBANY | 2005-03-14 | yes | yes |
| 518-619 | SLIC NETWORK SOLUTIONS, INC. - NY | SARANAC LK | 2016-04-04 | yes | yes |
| 518-620 | Windstream | AMSTERDAM | – | yes | yes |
| 518-621 | Verizon | ALBANY | 2009-04-17 | yes | yes |
| 518-622 | Verizon | CAIRO | – | yes | yes |
| 518-623 | Verizon | WARRENSBG | – | yes | yes |
| 518-624 | Frontier | LONG LAKE | – | yes | yes |
| 518-625 | AT&T | CATSKILL | – | yes | yes |
| 518-626 | Verizon | ALBANY | – | yes | yes |
| 518-627 | Verizon | AMSTERDAM | – | yes | yes |
| 518-628 | AT&T | HUNTER | – | yes | yes |
| 518-629 | Verizon | TROY | – | yes | yes |
| 518-630 | Charter | SCHENCTADY | – | yes | yes |
| 518-631 | Verizon | SCHENCTADY | – | yes | yes |
| 518-632 | Verizon | HARTFORD | – | yes | yes |
| 518-633 | Verizon | SARATOGSPG | – | yes | yes |
| 518-634 | Verizon | FREEHOLD | – | yes | yes |
| 518-635 | AT&T | SOBETHLEHM | – | yes | yes |
| 518-636 | Lumen | GLENSFALLS | – | yes | yes |
| 518-637 | Lumen | LAKEPLACID | – | yes | yes |
| 518-638 | Verizon | ARGYLE | – | yes | yes |
| 518-639 | Verizon | FORT ANN | – | yes | yes |
| 518-640 | Lumen | COLONIE | – | yes | yes |
| 518-641 | Lumen | ALBANY | – | yes | yes |
| 518-642 | Verizon | GRANVILLE | – | yes | yes |
| 518-643 | Verizon | PERU | – | yes | yes |
| 518-644 | Verizon | BOLTON LDG | – | yes | yes |
| 518-645 | AT&T | PLATTSBG | 2008-09-08 | yes | yes |
| 518-646 | Vonage | ALBANY | 2017-08-02 | yes | yes |
| 518-647 | Frontier | ASABLFORKS | – | yes | yes |
| 518-648 | Frontier | INDIANLAKE | – | yes | yes |
| 518-649 | Verizon | ALBANY | 2008-08-12 | yes | yes |
| 518-650 | Windstream | ALBANY | 2012-08-30 | yes | yes |
| 518-651 | TVC ALBANY, INC. DBA FIRSTLIGHT FIBER | MALONE | – | yes | yes |
| 518-652 | TVC ALBANY, INC. DBA FIRSTLIGHT FIBER | MECHANICVL | – | yes | yes |
| 518-653 | T-Mobile | HUDSON | 2002-06-10 | yes | yes |
| 518-654 | Frontier | CORINTH | – | yes | yes |
| 518-655 | TVC ALBANY, INC. DBA FIRSTLIGHT FIBER | VOORHEESVL | 2006-02-23 | yes | yes |
| 518-656 | Verizon | KATTSKL BY | – | yes | yes |
| 518-657 | T-Mobile | COBLESKILL | 2002-06-10 | yes | yes |
| 518-658 | TACONIC TEL. CORP. | BERLIN | – | – | yes |
| 518-659 | TVC ALBANY, INC. DBA FIRSTLIGHT FIBER | HOOSICKFLS | – | yes | yes |
| 518-660 | AT&T | HUDSON | 2012-07-17 | yes | yes |
| 518-661 | Frontier | MAYFIELD | – | yes | yes |
| 518-662 | Bandwidth | GREENVILLE | 2011-06-09 | yes | yes |
| 518-663 | Verizon | PITTSTOWN | – | yes | yes |
| 518-664 | Verizon | MECHANICVL | – | – | yes |
| 518-665 | Onvoy | MECHANICVL | – | yes | yes |
| 518-666 | Peerless | STREGISFLS | 2016-03-09 | yes | yes |
| 518-667 | Lumen | HARTFORD | 2013-06-07 | yes | yes |
| 518-668 | Verizon | LAKEGEORGE | – | yes | yes |
| 518-669 | Verizon | ALBANY | 2001-10-12 | – | yes |
| 518-670 | Windstream | MECHANICVL | – | yes | yes |
| 518-671 | Verizon | HUDSON | – | yes | yes |
| 518-672 | Verizon | PHILMONT | – | yes | yes |
| 518-673 | Frontier | CANAJOHARI | – | yes | yes |
| 518-674 | Verizon | AVERILL PK | – | yes | yes |
| 518-675 | Windstream | ALTAMONT | 2013-12-13 | yes | yes |
| 518-676 | Onvoy | FORT ANN | 2014-12-24 | yes | yes |
| 518-677 | Verizon | CAMBRIDGE | – | yes | yes |
| 518-678 | Verizon | PALENVILLE | – | yes | yes |
| 518-679 | TVC ALBANY, INC. DBA FIRSTLIGHT FIBER | COXSACKIE | 2014-05-05 | yes | yes |
| 518-680 | Verizon | GLENSFALLS | 2024-02-12 | yes | yes |
| 518-681 | TVC ALBANY, INC. DBA FIRSTLIGHT FIBER | GLENSFALLS | – | yes | yes |
| 518-682 | TVC ALBANY, INC. DBA FIRSTLIGHT FIBER | SARATOGSPG | – | yes | yes |
| 518-683 | Windstream | GLENSFALLS | – | yes | yes |
| 518-684 | Windstream | AMSTERDAM | – | yes | yes |
| 518-685 | TVC ALBANY, INC. DBA FIRSTLIGHT FIBER | LAKEGEORGE | – | yes | yes |
| 518-686 | Verizon | HOOSICKFLS | – | yes | yes |
| 518-687 | Windstream | TROY | – | yes | yes |
| 518-688 | Windstream | SCHENCTADY | – | yes | yes |
| 518-689 | Windstream | ALBANY | – | yes | yes |
| 518-690 | Windstream | COLONIE | – | yes | yes |
| 518-691 | Windstream | SARATOGSPG | – | yes | yes |
| 518-692 | Verizon | GREENWICH | – | yes | yes |
| 518-693 | Windstream | SARATOGSPG | – | yes | yes |
| 518-694 | TVC ALBANY, INC. DBA FIRSTLIGHT FIBER | ALBANY | – | yes | yes |
| 518-695 | Verizon | SCHUYLERVL | – | yes | yes |
| 518-696 | Frontier | LK LUZERNE | – | yes | yes |
| 518-697 | TVC ALBANY, INC. DBA FIRSTLIGHT FIBER | HUDSON | – | yes | yes |
| 518-698 | AT&T | COLONIE | – | yes | yes |
| 518-699 | TVC ALBANY, INC. DBA FIRSTLIGHT FIBER | PLATTSBG | – | yes | yes |
| 518-701 | Lumen | ALBANY | 2004-08-13 | yes | yes |
| 518-702 | Charter | MIDDLEBG | – | yes | yes |
| 518-703 | Verizon | ALBANY | 2010-02-09 | yes | yes |
| 518-704 | BLUEBIRD COMMUNICATIONS, LLC - NY | ALBANY | 2017-02-27 | yes | yes |
| 518-705 | AT&T | JOHNSTOWN | 2005-03-29 | yes | yes |
| 518-706 | AT&T | JOHNSTOWN | 2007-10-30 | yes | yes |
| 518-707 | Onvoy | SCHENCTADY | 2015-12-14 | yes | yes |
| 518-708 | Lumen | ALBANY | 2005-12-29 | yes | yes |
| 518-709 | AT&T | SCHENCTADY | 2016-05-02 | yes | yes |
| 518-710 | American Messaging | HUDSON | – | – | yes |
| 518-712 | TVC ALBANY, INC. DBA FIRSTLIGHT FIBER | AVERILL PK | – | yes | yes |
| 518-713 | Windstream | COLONIE | – | yes | yes |
| 518-714 | AT&T | BALLSTNSPA | 2001-04-11 | yes | yes |
| 518-715 | Peerless | GALWAY | 2016-05-02 | yes | yes |
| 518-716 | Lumen | CANAJOHARI | 2017-09-19 | yes | yes |
| 518-717 | Lumen | NORTHVILLE | 2017-10-13 | yes | yes |
| 518-718 | Onvoy | TANNERSVL | 2019-02-15 | yes | yes |
| 518-719 | TVC ALBANY, INC. DBA FIRSTLIGHT FIBER | CATSKILL | – | yes | yes |
| 518-720 | TVC ALBANY, INC. DBA FIRSTLIGHT FIBER | TROY | – | yes | yes |
| 518-721 | TVC ALBANY, INC. DBA FIRSTLIGHT FIBER | CLAVERACK | – | yes | yes |
| 518-722 | TVC ALBANY, INC. DBA FIRSTLIGHT FIBER | OAK HILL | – | yes | yes |
| 518-723 | Windstream | SCHENCTADY | – | yes | yes |
| 518-724 | Windstream | COLONIE | – | yes | yes |
| 518-725 | Frontier | GLOVERSVL | – | – | yes |
| 518-726 | T-Mobile | PLATTSBG | 2002-03-28 | yes | yes |
| 518-727 | Verizon | ALBANY | – | yes | yes |
| 518-728 | Verizon | ALBANY | 2008-04-08 | yes | yes |
| 518-729 | Windstream | ALBANY | 2002-02-11 | yes | yes |
| 518-730 | Peerless | ALBANY | 2014-04-14 | yes | yes |
| 518-731 | STATE TEL. CO. | COXSACKIE | – | – | yes |
| 518-732 | Verizon | CASTLETON | – | yes | yes |
| 518-733 | TACONIC TEL. CORP. | STEPHENTN | – | – | yes |
| 518-734 | Verizon | WINDHAM | – | yes | yes |
| 518-735 | Verizon | LYON MT | – | yes | yes |
| 518-736 | Frontier | JOHNSTOWN | – | yes | yes |
| 518-737 | INTEGRATED PATH COMMUNICATIONS, LLC - NY | STEPHENTN | 2015-03-05 | yes | yes |
| 518-738 | Lumen | COLONIE | – | yes | yes |
| 518-739 | Bandwidth | LAKEPLACID | 2018-05-25 | yes | yes |
| 518-740 | Windstream | TANNERSVL | 2014-05-09 | yes | yes |
| 518-741 | Charter | GLENSFALLS | 2014-10-21 | yes | yes |
| 518-742 | Verizon | GLENSFALLS | – | yes | yes |
| 518-743 | Verizon | GLENSFALLS | – | – | yes |
| 518-744 | AT&T | GLENSFALLS | – | – | yes |
| 518-745 | Verizon | GLENSFALLS | – | yes | yes |
| 518-746 | Verizon | GLENSFALLS | – | yes | yes |
| 518-747 | Verizon | GLENSFALLS | – | yes | yes |
| 518-748 | American Messaging | GLENSFALLS | – | – | yes |
| 518-749 | Bandwidth | AVERILL PK | 2014-09-12 | yes | yes |
| 518-750 | TVC ALBANY, INC. DBA FIRSTLIGHT FIBER | WINDHAM | – | yes | yes |
| 518-751 | Windstream | HUDSON | – | yes | yes |
| 518-752 | AT&T | GLOVERSVL | 2002-12-30 | yes | yes |
| 518-753 | Verizon | VALLEY FLS | – | yes | yes |
| 518-754 | Windstream | CASTLETON | – | yes | yes |
| 518-755 | Verizon | KINDERHOOK | – | – | yes |
| 518-756 | STATE TEL. CO. | RAVENA | – | – | yes |
| 518-757 | Lumen | BERNE | 2012-06-26 | yes | yes |
| 518-758 | BERKSHIRE TEL. CO. | KINDERHOOK | – | – | yes |
| 518-759 | PRIMELINK, INC. - NY | WHITEHALL | – | yes | yes |
| 518-760 | T-Mobile | GLENSFALLS | 2015-12-03 | yes | yes |
| 518-761 | Verizon | GLENSFALLS | – | – | yes |
| 518-762 | Frontier | JOHNSTOWN | – | – | yes |
| 518-763 | Onvoy | ALBANY | 2006-07-03 | yes | yes |
| 518-764 | Verizon | ALBANY | 2007-11-14 | yes | yes |
| 518-765 | Verizon | VOORHEESVL | – | yes | yes |
| 518-766 | TACONIC TEL. CORP. | NASSAU | – | – | yes |
| 518-767 | Verizon | SOBETHLEHM | – | yes | yes |
| 518-768 | Verizon | CLARKSVL | – | yes | yes |
| 518-769 | Verizon | GLENSFALLS | 2015-04-03 | yes | yes |
| 518-770 | Windstream | AMSTERDAM | – | yes | yes |
| 518-771 | Altice | PINEPLAINS | 2008-08-04 | yes | yes |
| 518-772 | YMAX COMMUNICATIONS CORP. - NY | ALBANY | 2007-12-21 | yes | yes |
| 518-773 | Frontier | GLOVERSVL | – | – | yes |
| 518-774 | Verizon | GLOVERSVL | – | yes | yes |
| 518-775 | Frontier | GLOVERSVL | – | yes | yes |
| 518-776 | T-Mobile | ALBANY | – | yes | yes |
| 518-777 | Onvoy | SHARON SPG | – | yes | yes |
| 518-778 | Charter | WEST CHAZY | – | yes | yes |
| 518-779 | AT&T | ALBANY | 2008-07-14 | yes | yes |
| 518-781 | TACONIC TEL. CORP. | CANAAN | – | yes | yes |
| 518-782 | Verizon | COLONIE | – | – | yes |
| 518-783 | Verizon | COLONIE | – | – | yes |
| 518-784 | BERKSHIRE TEL. CO. | KINDERHOOK | – | – | yes |
| 518-785 | Verizon | COLONIE | – | – | yes |
| 518-786 | Verizon | COLONIE | – | – | yes |
| 518-787 | TVC ALBANY, INC. DBA FIRSTLIGHT FIBER | RAVENA | 2014-05-05 | yes | yes |
| 518-788 | Verizon | ALBANY | 2003-11-07 | yes | yes |
| 518-789 | TACONIC TEL. CORP. | MILLERTON | – | yes | yes |
| 518-790 | Altice | MILLERTON | 2015-05-21 | yes | yes |
| 518-791 | Verizon | GLENSFALLS | – | – | yes |
| 518-792 | Verizon | GLENSFALLS | – | – | yes |
| 518-793 | Verizon | GLENSFALLS | – | – | yes |
| 518-794 | TACONIC TEL. CORP. | W LEBANON | – | yes | yes |
| 518-795 | Verizon | ALBANY | 2009-06-09 | yes | yes |
| 518-796 | Verizon | GLENSFALLS | – | – | yes |
| 518-797 | Verizon | WESTERLO | – | yes | yes |
| 518-798 | Verizon | GLENSFALLS | – | – | yes |
| 518-799 | BERKSHIRE TEL. CO. | KINDERHOOK | – | – | yes |
| 518-800 | Onvoy | ARGYLE | – | yes | yes |
| 518-801 | T-Mobile | ALBANY | – | yes | yes |
| 518-802 | AT&T | PLATTSBG | 2006-03-20 | yes | yes |
| 518-803 | Charter | CHESTERTN | – | yes | yes |
| 518-804 | Peerless | GLENSFALLS | 2016-08-08 | yes | yes |
| 518-805 | AT&T | TROY | 2016-05-27 | yes | yes |
| 518-806 | Bandwidth | MALONE | 2018-05-08 | yes | yes |
| 518-807 | Verizon | ALBANY | – | yes | yes |
| 518-808 | Onvoy | FORT ANN | 2016-09-14 | yes | yes |
| 518-809 | Peerless | KEENE | 2015-12-18 | yes | yes |
| 518-810 | Lumen | ALBANY | 2003-03-14 | yes | yes |
| 518-812 | Verizon | GLENSFALLS | – | yes | yes |
| 518-813 | Verizon | ALBANY | 2005-10-14 | yes | yes |
| 518-814 | Verizon | COLONIE | – | – | yes |
| 518-815 | BALTIMORE-WASHINGTON TELEPHONE COMPANY - NY | ALBANY | 2015-06-08 | yes | yes |
| 518-816 | Bandwidth | ALBANY | 2016-08-15 | yes | yes |
| 518-817 | PRIMELINK, INC. - NY | ALBANY | – | yes | yes |
| 518-818 | Onvoy | ALBANY | – | yes | yes |
| 518-819 | Lumen | CATSKILL | – | yes | yes |
| 518-820 | Lumen | CORINTH | 2005-08-02 | yes | yes |
| 518-821 | AT&T | HUDSON | – | – | yes |
| 518-822 | Verizon | HUDSON | – | yes | yes |
| 518-823 | TVC ALBANY, INC. DBA FIRSTLIGHT FIBER | COBLESKILL | – | yes | yes |
| 518-824 | Windstream | GLENSFALLS | – | yes | yes |
| 518-825 | WESTELCOM NETWORK, INC. - NY | PLATTSBG | – | yes | yes |
| 518-826 | Charter | BRAMANVL | – | yes | yes |
| 518-827 | MIDDLEBURGH TEL. CO. | MIDDLEBG | – | – | yes |
| 518-828 | Verizon | HUDSON | – | – | yes |
| 518-829 | Frontier | TRIBESHILL | – | yes | yes |
| 518-830 | Bandwidth | BERNE | 2016-06-28 | yes | yes |
| 518-831 | Windstream | SCHENCTADY | – | yes | yes |
| 518-832 | Windstream | GLENSFALLS | – | yes | yes |
| 518-833 | Windstream | TROY | – | yes | yes |
| 518-834 | Frontier | KEESEVILLE | – | yes | yes |
| 518-835 | Frontier | CAROGALAKE | – | yes | yes |
| 518-836 | Windstream | SCHENCTADY | – | yes | yes |
| 518-837 | AT&T | LAKEPLACID | 2003-12-08 | yes | yes |
| 518-838 | Onvoy | TROY | 2024-03-14 | yes | yes |
| 518-839 | Lumen | AMSTERDAM | – | yes | yes |
| 518-840 | Verizon | WARRENSBG | 2015-11-12 | yes | yes |
| 518-841 | Verizon | AMSTERDAM | – | yes | yes |
| 518-842 | Verizon | AMSTERDAM | – | – | yes |
| 518-843 | Verizon | AMSTERDAM | – | – | yes |
| 518-844 | T-Mobile | GLOVERSVL | 2002-07-10 | yes | yes |
| 518-845 | Onvoy | COLONIE | 2024-03-20 | yes | yes |
| 518-846 | CHAZY & WESTPORT TEL. CORP. | CHAZY | – | – | yes |
| 518-847 | TVC ALBANY, INC. DBA FIRSTLIGHT FIBER | SCHENCTADY | – | yes | yes |
| 518-848 | T-Mobile | JOHNSTOWN | 2001-11-26 | yes | yes |
| 518-849 | Peerless | DANNEMORA | 2015-12-09 | yes | yes |
| 518-851 | Verizon | CLAVERACK | – | yes | yes |
| 518-852 | Verizon | ALBANY | – | – | yes |
| 518-853 | Frontier | FONDA | – | yes | yes |
| 518-854 | Verizon | SALEM | – | yes | yes |
| 518-855 | Lumen | GREENWICH | – | yes | yes |
| 518-856 | Verizon | STREGISFLS | – | yes | yes |
| 518-857 | T-Mobile | ALBANY | – | yes | yes |
| 518-858 | T-Mobile | ALBANY | 2001-08-01 | yes | yes |
| 518-859 | Verizon | ALBANY | 2002-03-08 | – | yes |
| 518-860 | RINGSQUARED TELECOM LLC | ALBANY | 2005-12-16 | yes | yes |
| 518-861 | Verizon | ALTAMONT | – | yes | yes |
| 518-862 | Verizon | COLONIE | – | yes | yes |
| 518-863 | Frontier | NORTHVILLE | – | yes | yes |
| 518-864 | Verizon | MARIAVILLE | – | yes | yes |
| 518-865 | Spok | COLONIE | – | – | yes |
| 518-866 | T-Mobile | AMSTERDAM | 2002-05-16 | yes | yes |
| 518-867 | TVC ALBANY, INC. DBA FIRSTLIGHT FIBER | COLONIE | – | yes | yes |
| 518-868 | Verizon | CENTRALBDG | – | yes | yes |
| 518-869 | Verizon | COLONIE | – | – | yes |
| 518-870 | T-Mobile | ALBANY | – | yes | yes |
| 518-871 | Windstream | SARATOGSPG | 2003-05-16 | yes | yes |
| 518-872 | Verizon | BERNE | – | yes | yes |
| 518-873 | Verizon | ELIZABTHTN | – | yes | yes |
| 518-874 | Windstream | TROY | – | yes | yes |
| 518-875 | Verizon | ESPERANCE | – | yes | yes |
| 518-876 | TVC ALBANY, INC. DBA FIRSTLIGHT FIBER | AMSTERDAM | – | yes | yes |
| 518-877 | Verizon | JONESVILLE | – | yes | yes |
| 518-878 | T-Mobile | SCHENCTADY | 2002-05-16 | yes | yes |
| 518-879 | T-Mobile | SARATOGSPG | 2002-05-16 | yes | yes |
| 518-880 | Lumen | TROY | – | yes | yes |
| 518-881 | Lumen | SCHENCTADY | – | yes | yes |
| 518-882 | Verizon | GALWAY | – | yes | yes |
| 518-883 | Frontier | BROADALBIN | – | yes | yes |
| 518-884 | Verizon | BALLSTNSPA | – | – | yes |
| 518-885 | Verizon | BALLSTNSPA | – | – | yes |
| 518-886 | Lumen | SARATOGSPG | – | yes | yes |
| 518-887 | PATTERSONVILLE TEL. CO. | ROTERDMJCT | – | yes | yes |
| 518-888 | Onvoy | ALBANY | – | yes | yes |
| 518-889 | TVC ALBANY, INC. DBA FIRSTLIGHT FIBER | BALLSTNSPA | – | yes | yes |
| 518-890 | Verizon | MARIAVILLE | – | – | yes |
| 518-891 | Verizon | SARANAC LK | – | – | yes |
| 518-892 | T-Mobile | TROY | 2002-06-04 | yes | yes |
| 518-893 | Verizon | GREENFLCTR | – | yes | yes |
| 518-894 | AT&T | ALBANY | 2003-07-09 | yes | yes |
| 518-895 | Verizon | DELANSON | – | yes | yes |
| 518-896 | Peerless | MARIAVILLE | 2015-05-05 | yes | yes |
| 518-897 | Verizon | SARANAC LK | – | yes | yes |
| 518-898 | Verizon | ALBANY | 2014-10-09 | yes | yes |
| 518-899 | Verizon | ROUND LAKE | – | yes | yes |
| 518-900 | Onvoy | CLARKSVL | – | yes | yes |
| 518-901 | Charter | SCHENCTADY | 2016-10-04 | yes | yes |
| 518-902 | Lumen | SCHENCTADY | 2016-10-07 | yes | yes |
| 518-903 | Verizon | ALBANY | 2016-10-07 | yes | yes |
| 518-904 | Bandwidth | SCHROON LK | 2018-05-09 | yes | yes |
| 518-905 | TELXMEDIA, INC. - NY | FTCOVINGTN | 2016-10-13 | yes | yes |
| 518-906 | Lumen | ALTAMONT | 2016-11-16 | yes | yes |
| 518-907 | Lumen | PLATTSBG | – | yes | yes |
| 518-908 | SLIC NETWORK SOLUTIONS, INC. - NY | BRAINADSVL | 2016-11-21 | yes | yes |
| 518-909 | Onvoy | GRANVILLE | 2017-01-10 | yes | yes |
| 518-912 | AT&T | ALBANY | 2017-03-01 | yes | yes |
| 518-913 | Lumen | ASABLFORKS | 2017-04-04 | yes | yes |
| 518-914 | AT&T | SCHENCTADY | 2019-10-11 | yes | yes |
| 518-915 | Windstream | ALBANY | – | yes | yes |
| 518-916 | Onvoy | GREENVILLE | 2017-04-11 | yes | yes |
| 518-917 | Charter | ALBANY | 2018-06-15 | yes | yes |
| 518-918 | COMMIO, LLC | ALBANY | 2017-03-23 | yes | yes |
| 518-919 | Peerless | PUTNAM | 2016-04-08 | yes | yes |
| 518-920 | COMMIO, LLC | GLENSFALLS | 2022-03-14 | yes | yes |
| 518-921 | AT&T | GLOVERSVL | 2008-09-15 | yes | yes |
| 518-922 | Frontier | GLEN | – | yes | yes |
| 518-923 | CONTACT COMMUNICATIONS, INC. | SARANAC LK | – | – | yes |
| 518-924 | Frontier | WELLS | – | yes | yes |
| 518-925 | Verizon | ALBANY | 2009-05-07 | yes | yes |
| 518-926 | Verizon | GLENSFALLS | – | yes | yes |
| 518-928 | Verizon | ALBANY | 2002-01-09 | – | yes |
| 518-929 | Verizon | KINDERHOOK | 2002-01-09 | yes | yes |
| 518-930 | Charter | SCHENCTADY | 2014-02-11 | yes | yes |
| 518-931 | Charter | NASSAU | – | yes | yes |
| 518-932 | Lumen | GLENSFALLS | – | yes | yes |
| 518-933 | Peerless | SCHUYLERVL | 2015-12-21 | yes | yes |
| 518-934 | PRIMELINK, INC. - NY | SARATOGSPG | – | yes | yes |
| 518-935 | Windstream | ALBANY | – | yes | yes |
| 518-936 | Windstream | WESTERLO | – | yes | yes |
| 518-937 | Windstream | ALBANY | 2006-08-01 | yes | yes |
| 518-938 | Charter | CHATHAM | 2007-05-17 | yes | yes |
| 518-939 | Altice | COPAKE | 2008-08-04 | yes | yes |
| 518-940 | Peerless | CHATEAUGAY | 2015-12-09 | yes | yes |
| 518-941 | Onvoy | ALBANY | 2015-04-27 | yes | yes |
| 518-942 | Verizon | MINEVILLE | – | yes | yes |
| 518-943 | Verizon | CATSKILL | – | yes | yes |
| 518-944 | Lumen | ALBANY | 2006-06-27 | yes | yes |
| 518-945 | Verizon | ATHENS | – | yes | yes |
| 518-946 | Frontier | WILMINGTON | – | yes | yes |
| 518-947 | Windstream | CATSKILL | – | yes | yes |
| 518-948 | Verizon | ALBANY | 2016-05-23 | yes | yes |
| 518-949 | Verizon | ALBANY | 2016-01-04 | yes | yes |
| 518-951 | AT&T | COLONIE | – | yes | yes |
| 518-952 | AT&T | SCHENCTADY | – | yes | yes |
| 518-953 | AT&T | TROY | – | yes | yes |
| 518-954 | AT&T | AMSTERDAM | – | yes | yes |
| 518-955 | AT&T | GLENSFALLS | – | yes | yes |
| 518-956 | AT&T | ALBANY | – | yes | yes |
| 518-957 | AT&T | PLATTSBG | – | yes | yes |
| 518-960 | AT&T | TROY | – | yes | yes |
| 518-961 | T-Mobile | TROY | – | yes | yes |
| 518-962 | CHAZY & WESTPORT TEL. CORP. | WESTPORT | – | – | yes |
| 518-963 | Verizon | WILLSBORO | – | yes | yes |
| 518-964 | Windstream | LAKEGEORGE | – | yes | yes |
| 518-965 | AT&T | HUDSON | – | – | yes |
| 518-966 | Verizon | GREENVILLE | – | yes | yes |
| 518-967 | CENTRAL VERMONT COMMUNICATIONS, INC. | PLATTSBG | 2002-01-21 | – | yes |
| 518-968 | CENTRAL VERMONT COMMUNICATIONS, INC. | SARANAC LK | 2002-01-21 | – | yes |
| 518-969 | CENTRAL VERMONT COMMUNICATIONS, INC. | GLENSFALLS | 2002-01-21 | – | yes |
| 518-971 | Verizon | ALBANY | 2023-11-21 | yes | yes |
| 518-972 | Onvoy | PRATTSVL | 2017-04-11 | yes | yes |
| 518-973 | AT&T | SUMMIT | 2024-11-27 | yes | yes |
| 518-974 | IP HORIZON LLC | GLENSFALLS | 2024-07-30 | yes | yes |
| 518-975 | PRIMELINK, INC. - NY | KEESEVILLE | – | yes | yes |
| 518-977 | BARR TELL USA, INC. - NY | ALBANY | 2015-01-08 | yes | yes |
| 518-978 | Bandwidth | JONESVILLE | 2015-03-17 | yes | yes |
| 518-980 | Telnyx | FTCOVINGTN | 2017-04-17 | yes | yes |
| 518-981 | TVC ALBANY, INC. DBA FIRSTLIGHT FIBER | WILLSBORO | – | yes | yes |
| 518-982 | T-Mobile | SCHENCTADY | – | yes | yes |
| 518-983 | Charter | WILLSBORO | – | yes | yes |
| 518-984 | HD CARRIER LLC | TICONDROGA | – | yes | yes |
| 518-986 | T-Mobile | SCHENCTADY | – | yes | yes |
| 518-987 | Bandwidth | GALWAY | 2018-07-03 | yes | yes |
| 518-988 | INTEGRATED PATH COMMUNICATIONS, LLC - NY | HILLSDALE | 2015-02-25 | yes | yes |
| 518-989 | Verizon | LEXINGTON | – | yes | yes |
| 518-990 | Peerless | MOIRA | 2016-03-09 | yes | yes |
| 518-991 | CATSKILLS COMMUNICATIONS, INC - NY | HUNTER | 2017-05-19 | yes | yes |
| 518-992 | AIRUS, INC. - NY | ALBANY | 2014-11-10 | yes | yes |
| 518-993 | Frontier | FORT PLAIN | – | yes | yes |
| 518-994 | Lumen | GREENFLCTR | 2017-06-08 | yes | yes |
| 518-995 | Onvoy | WILMINGTON | 2018-06-13 | yes | yes |
| 518-999 | YORKSTREAM COMMUNICATIONS LLC | SALEM | 2024-02-20 | yes | yes |
Frequently asked
How many prefixes does area code 518 have?
775 NXX blocks are assigned of 786 possible. Each block is 10,000 consecutive numbers, so the code currently covers about 7,750 thousand-number ranges across 135 rate centers.
What do the first three digits after 518 tell me?
They identify the block, which tells you the rate center it was allocated to and the carrier that received it. They do not tell you who serves the number today: portability moves numbers between carriers, and pooling splits a block between several of them.
Is a 518 prefix tied to a specific town?
To a rate center, which is billing geography rather than a town. NANPA abbreviates rate center names to ten characters and in large metros uses zone codes, so the name is a NANPA label, not a place name.
What does “pooled” mean in the 518 table?
That the block is in thousands-block pooling: carriers draw 1,000-number lots from it instead of taking all 10,000. 600 of 518's blocks are pooled, which is how regulators slowed down area code exhaustion – and why one prefix can belong to several carriers.
Source and limits
NANPA CO Code Assignment Records, all states, utilized codes, file updated 11/01/2026 – the rows where the record's Use field is “AS” (assigned). Unavailable codes are excluded. The records say who received a block and when, not who serves a particular number today.
More about this code: overview · carriers · spam complaints · local time