Verified Nov 1, 2026 · Source: NANPA CO Code Assignment Records
Area code 323 prefixes
786 of the 786 possible NXX blocks are assigned in area code 323 (100.0% of capacity), spread across 12 rate centers and 30 holders. The largest holders are PACIFIC BELL (265 blocks, 33.7%), METROPCS NETWORKS, LLC (85 blocks, 10.8%), T-MOBILE USA, INC. (64 blocks, 8.1%). Grouped by brand, AT&T accounts for 327 blocks; brand-attributable holders cover 97% 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 2001-01-23 to 2025-04-02, with 49 blocks handed out in 2001 alone. 524 blocks (67%) 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. 193 were growth assignments – additional blocks to a carrier that had already filled its earlier ones.
786 assigned blocks of 786
12 rate centers
30 holders of record
67% in thousands-block pooling
Largest holders in 323
| Holder of record, as NANPA names it | Brand | Blocks | Share |
|---|---|---|---|
| PACIFIC BELL | AT&T | 265 | 33.7% |
| METROPCS NETWORKS, LLC | T-Mobile | 85 | 10.8% |
| T-MOBILE USA, INC. | T-Mobile | 64 | 8.1% |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | Verizon | 45 | 5.7% |
| NEW CINGULAR WIRELESS PCS, LLC | AT&T | 39 | 5% |
| BANDWIDTH.COM CLEC, LLC - CA | Bandwidth | 38 | 4.8% |
| U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | TPx | 37 | 4.7% |
| LEVEL 3 COMMUNICATIONS, LLC - CA | Lumen | 34 | 4.3% |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Verizon | 29 | 3.7% |
| ONVOY, LLC - CA | Onvoy | 25 | 3.2% |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | Verizon | 23 | 2.9% |
| TELEPORT COMMUNICATIONS AMERICA, LLC - CA | AT&T | 20 | 2.5% |
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.
All 786 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 |
|---|---|---|---|---|---|
| 323-200 | AT&T | LSAN DA 12 | – | yes | yes |
| 323-201 | TPx | MONTEBELLO | – | yes | yes |
| 323-202 | AT&T | LSAN DA 13 | – | yes | yes |
| 323-203 | AT&T | LSAN DA 14 | – | yes | yes |
| 323-204 | Lumen | LSAN DA 06 | – | yes | yes |
| 323-205 | Lumen | LSAN DA 04 | – | yes | yes |
| 323-206 | Lumen | LSAN DA 03 | – | yes | yes |
| 323-207 | Bandwidth | LSAN DA 08 | – | yes | yes |
| 323-208 | Lumen | LSAN DA 09 | – | yes | yes |
| 323-209 | Lumen | LSAN DA 13 | – | yes | yes |
| 323-210 | AT&T | LSAN DA 02 | – | yes | yes |
| 323-212 | Lumen | LSAN DA 11 | – | yes | yes |
| 323-213 | Verizon | MONTEBELLO | 2006-11-21 | yes | yes |
| 323-214 | Verizon | LSAN DA 06 | – | yes | yes |
| 323-215 | Verizon | MONTEBELLO | – | yes | yes |
| 323-216 | T-Mobile | MONTEBELLO | 2001-12-26 | yes | yes |
| 323-217 | Lumen | LSAN DA 14 | – | yes | yes |
| 323-218 | T-Mobile | LSAN DA 13 | – | yes | yes |
| 323-219 | Verizon | LSAN DA 14 | 2001-07-16 | – | yes |
| 323-220 | Lumen | LSAN DA 11 | – | yes | yes |
| 323-221 | AT&T | LSAN DA 04 | – | – | yes |
| 323-222 | AT&T | LSAN DA 04 | – | – | yes |
| 323-223 | AT&T | LSAN DA 04 | – | – | yes |
| 323-224 | AT&T | LSAN DA 04 | – | – | yes |
| 323-225 | AT&T | LSAN DA 04 | – | – | yes |
| 323-226 | AT&T | LSAN DA 04 | – | – | yes |
| 323-227 | AT&T | LSAN DA 04 | – | – | yes |
| 323-228 | T-Mobile | LSAN DA 11 | 2001-09-19 | yes | yes |
| 323-229 | AT&T | LSAN DA 14 | 2001-11-28 | – | yes |
| 323-230 | Lumen | LSAN DA 08 | – | yes | yes |
| 323-231 | AT&T | LSAN DA 08 | – | – | yes |
| 323-232 | AT&T | LSAN DA 08 | – | – | yes |
| 323-233 | AT&T | LSAN DA 08 | – | – | yes |
| 323-234 | AT&T | LSAN DA 08 | – | – | yes |
| 323-235 | AT&T | LSAN DA 08 | – | – | yes |
| 323-236 | AT&T | MONTEBELLO | 2001-07-16 | – | yes |
| 323-237 | T-Mobile | LSAN DA 06 | 2010-05-27 | yes | yes |
| 323-238 | AT&T | LSAN DA 08 | – | yes | yes |
| 323-239 | T-Mobile | LSAN DA 13 | 2008-10-23 | yes | yes |
| 323-240 | Verizon | LSAN DA 14 | – | – | yes |
| 323-241 | AT&T | LSAN DA 09 | – | yes | yes |
| 323-242 | AT&T | LSAN DA 09 | – | – | yes |
| 323-243 | Verizon | LSAN DA 14 | – | – | yes |
| 323-244 | Lumen | LSAN DA 03 | – | yes | yes |
| 323-245 | AT&T | LSAN DA 02 | – | yes | yes |
| 323-246 | Verizon | MONTEBELLO | 2006-08-13 | yes | yes |
| 323-247 | T-Mobile | LSAN DA 14 | 2008-12-10 | yes | yes |
| 323-248 | AT&T | MONTEBELLO | 2010-06-07 | yes | yes |
| 323-249 | AT&T | LSAN DA 06 | – | – | yes |
| 323-250 | Bandwidth | LSAN DA 04 | – | yes | yes |
| 323-251 | T-Mobile | LSAN DA 14 | – | yes | yes |
| 323-252 | T-Mobile | LSAN DA 14 | – | yes | yes |
| 323-253 | T-Mobile | MONTEBELLO | – | yes | yes |
| 323-254 | AT&T | LSAN DA 03 | – | – | yes |
| 323-255 | AT&T | LSAN DA 03 | – | – | yes |
| 323-256 | AT&T | LSAN DA 03 | – | – | yes |
| 323-257 | AT&T | LSAN DA 03 | – | – | yes |
| 323-258 | AT&T | LSAN DA 03 | – | – | yes |
| 323-259 | AT&T | LSAN DA 03 | – | – | yes |
| 323-260 | AT&T | LSAN DA 05 | – | – | yes |
| 323-261 | AT&T | LSAN DA 05 | – | – | yes |
| 323-262 | AT&T | LSAN DA 05 | – | – | yes |
| 323-263 | AT&T | LSAN DA 05 | – | – | yes |
| 323-264 | AT&T | LSAN DA 05 | – | – | yes |
| 323-265 | AT&T | LSAN DA 05 | – | – | yes |
| 323-266 | AT&T | LSAN DA 05 | – | yes | yes |
| 323-267 | AT&T | LSAN DA 05 | – | – | yes |
| 323-268 | AT&T | LSAN DA 05 | – | – | yes |
| 323-269 | AT&T | LSAN DA 05 | – | – | yes |
| 323-270 | T-Mobile | MONTEBELLO | – | yes | yes |
| 323-271 | AT&T | MONTEBELLO | – | yes | yes |
| 323-272 | AT&T | LSAN DA 13 | – | yes | yes |
| 323-273 | T-Mobile | MONTEBELLO | – | yes | yes |
| 323-274 | AT&T | LSAN DA 03 | – | yes | yes |
| 323-275 | AT&T | LSAN DA 04 | – | yes | yes |
| 323-276 | AT&T | LSAN DA 04 | – | – | yes |
| 323-277 | AT&T | LSAN DA 06 | – | – | yes |
| 323-278 | AT&T | MONTEBELLO | – | – | yes |
| 323-279 | American Messaging | LSAN DA 08 | – | – | yes |
| 323-280 | American Messaging | LSAN DA 02 | – | – | yes |
| 323-281 | 33 WIRELESS INC. | MONTEBELLO | – | – | yes |
| 323-282 | AT&T | LSAN DA 06 | – | yes | yes |
| 323-283 | AT&T | LSAN DA 04 | – | yes | yes |
| 323-284 | Verizon | LSAN DA 02 | – | yes | yes |
| 323-285 | Lumen | LSAN DA 08 | – | yes | yes |
| 323-286 | T-Mobile | LSAN DA 03 | – | yes | yes |
| 323-287 | Verizon | LSAN DA 04 | – | yes | yes |
| 323-288 | Spok | LSAN DA 03 | – | – | yes |
| 323-289 | T-Mobile | LSAN DA 12 | 2001-05-03 | yes | yes |
| 323-290 | AT&T | LSAN DA 12 | – | – | yes |
| 323-291 | AT&T | LSAN DA 12 | – | – | yes |
| 323-292 | AT&T | LSAN DA 12 | – | – | yes |
| 323-293 | AT&T | LSAN DA 12 | – | yes | yes |
| 323-294 | AT&T | LSAN DA 12 | – | – | yes |
| 323-295 | AT&T | LSAN DA 12 | – | – | yes |
| 323-296 | AT&T | LSAN DA 12 | – | yes | yes |
| 323-297 | Verizon | LSAN DA 13 | – | yes | yes |
| 323-298 | AT&T | LSAN DA 12 | – | – | yes |
| 323-299 | AT&T | LSAN DA 12 | – | – | yes |
| 323-300 | TPx | LSAN DA 02 | – | yes | yes |
| 323-301 | XO CALIFORNIA, INC. | LSAN DA 14 | – | yes | yes |
| 323-302 | Verizon | LSAN DA 13 | – | yes | yes |
| 323-303 | Lumen | MONTEBELLO | 2006-11-28 | yes | yes |
| 323-304 | T-Mobile | LSAN DA 14 | 2001-12-26 | – | yes |
| 323-305 | XO CALIFORNIA, INC. | LSAN DA 09 | – | yes | yes |
| 323-306 | Verizon | LSAN DA 08 | – | yes | yes |
| 323-307 | AT&T | LSAN DA 05 | – | yes | yes |
| 323-308 | AT&T | LSAN DA 14 | – | yes | yes |
| 323-309 | T-Mobile | LSAN DA 14 | – | yes | yes |
| 323-310 | Onvoy | LSAN DA 06 | 2015-11-23 | yes | yes |
| 323-312 | TPx | LSAN DA 06 | – | yes | yes |
| 323-313 | Verizon | MONTEBELLO | – | yes | yes |
| 323-314 | AT&T | MONTEBELLO | – | – | yes |
| 323-315 | Windstream | LSAN DA 02 | – | yes | yes |
| 323-316 | Windstream | LSAN DA 03 | – | yes | yes |
| 323-317 | Windstream | LSAN DA 04 | – | yes | yes |
| 323-318 | Windstream | LSAN DA 05 | – | yes | yes |
| 323-319 | Windstream | LSAN DA 06 | – | yes | yes |
| 323-320 | T-Mobile | LSAN DA 02 | 2010-07-06 | yes | yes |
| 323-321 | AT&T | LSAN DA 09 | – | yes | yes |
| 323-322 | Spok | LSAN DA 11 | – | – | yes |
| 323-323 | WIDE VOICE, LLC - CA | LSAN DA 09 | 2025-04-02 | yes | yes |
| 323-324 | American Messaging | MONTEBELLO | – | – | yes |
| 323-325 | Windstream | LSAN DA 08 | – | yes | yes |
| 323-326 | AT&T | LSAN DA 06 | – | yes | yes |
| 323-327 | Windstream | LSAN DA 09 | – | yes | yes |
| 323-328 | Windstream | LSAN DA 11 | – | yes | yes |
| 323-329 | Windstream | LSAN DA 12 | – | yes | yes |
| 323-330 | Windstream | LSAN DA 13 | – | yes | yes |
| 323-331 | Verizon | LSAN DA 02 | 2001-05-10 | yes | yes |
| 323-332 | Lumen | LSAN DA 04 | – | yes | yes |
| 323-333 | Verizon | LSAN DA 14 | – | – | yes |
| 323-334 | TPx | LSAN DA 11 | – | yes | yes |
| 323-335 | TPx | LSAN DA 02 | – | yes | yes |
| 323-336 | Verizon | LSAN DA 09 | – | yes | yes |
| 323-337 | Windstream | LSAN DA 14 | – | yes | yes |
| 323-338 | Verizon | LSAN DA 02 | 2001-05-10 | yes | yes |
| 323-339 | American Messaging | LSAN DA 03 | – | – | yes |
| 323-340 | AT&T | LSAN DA 03 | – | – | yes |
| 323-341 | AT&T | LSAN DA 03 | – | – | yes |
| 323-342 | AT&T | LSAN DA 04 | – | yes | yes |
| 323-343 | AT&T | LSAN DA 04 | – | – | yes |
| 323-344 | AT&T | LSAN DA 03 | – | yes | yes |
| 323-345 | TPx | LSAN DA 02 | – | yes | yes |
| 323-346 | TPx | MONTEBELLO | – | yes | yes |
| 323-347 | Verizon | LSAN DA 12 | – | yes | yes |
| 323-348 | Lumen | LSAN DA 12 | – | yes | yes |
| 323-349 | AT&T | LSAN DA 03 | – | yes | yes |
| 323-350 | T-Mobile | LSAN DA 04 | 2002-09-19 | – | yes |
| 323-351 | Verizon | LSAN DA 06 | – | yes | yes |
| 323-352 | AT&T | LSAN DA 04 | – | yes | yes |
| 323-353 | T-Mobile | MONTEBELLO | – | yes | yes |
| 323-354 | Lumen | LSAN DA 05 | – | yes | yes |
| 323-355 | Spok | LSAN DA 03 | – | – | yes |
| 323-356 | AT&T | LSAN DA 14 | – | – | yes |
| 323-357 | AT&T | LSAN DA 06 | – | yes | yes |
| 323-358 | T-Mobile | MONTEBELLO | 2011-12-23 | yes | yes |
| 323-359 | T-Mobile | MONTEBELLO | – | yes | yes |
| 323-360 | AT&T | LSAN DA 05 | – | yes | yes |
| 323-361 | AT&T | LSAN DA 02 | 2006-10-24 | yes | yes |
| 323-362 | AT&T | LSAN DA 05 | – | yes | yes |
| 323-363 | AT&T | LSAN DA 14 | – | – | yes |
| 323-364 | Bandwidth | LSAN DA 06 | 2010-09-30 | yes | yes |
| 323-365 | AT&T | MONTEBELLO | – | – | yes |
| 323-366 | Bandwidth | LSAN DA 14 | – | yes | yes |
| 323-367 | Spok | LSAN DA 03 | – | – | yes |
| 323-368 | UTILITY TELECOM GROUP, LLC - CA | LSAN DA 08 | – | yes | yes |
| 323-369 | AT&T | LSAN DA 09 | 2002-01-29 | – | yes |
| 323-370 | AT&T | LSAN DA 13 | – | yes | yes |
| 323-371 | Verizon | LSAN DA 14 | – | – | yes |
| 323-372 | Bandwidth | LSAN DA 14 | – | yes | yes |
| 323-373 | AT&T | LSAN DA 11 | – | yes | yes |
| 323-374 | TPx | LSAN DA 06 | – | yes | yes |
| 323-375 | Onvoy | LSAN DA 02 | – | yes | yes |
| 323-376 | Verizon | LSAN DA 14 | – | – | yes |
| 323-377 | T-Mobile | LSAN DA 14 | – | yes | yes |
| 323-378 | Lumen | LSAN DA 14 | – | yes | yes |
| 323-379 | T-Mobile | LSAN DA 04 | – | yes | yes |
| 323-380 | Bandwidth | LSAN DA 14 | 2010-10-06 | yes | yes |
| 323-381 | T-Mobile | LSAN DA 13 | – | yes | yes |
| 323-382 | AT&T | LSAN DA 14 | – | yes | yes |
| 323-383 | Verizon | LSAN DA 06 | – | yes | yes |
| 323-384 | AT&T | LSAN DA 03 | – | yes | yes |
| 323-385 | T-Mobile | MONTEBELLO | – | yes | yes |
| 323-386 | Verizon | LSAN DA 11 | – | yes | yes |
| 323-387 | Verizon | LSAN DA 14 | 2002-08-21 | yes | yes |
| 323-388 | Verizon | LSAN DA 06 | – | yes | yes |
| 323-389 | Verizon | LSAN DA 12 | 2001-02-22 | yes | yes |
| 323-390 | NORTH COUNTY COMMUNICATION CORPORATION - CA | LSAN DA 11 | – | – | yes |
| 323-391 | Lumen | LSAN DA 14 | 2010-10-11 | yes | yes |
| 323-392 | T-Mobile | LSAN DA 06 | 2006-12-08 | yes | yes |
| 323-393 | IP HORIZON LLC | LSAN DA 09 | – | yes | yes |
| 323-394 | Verizon | LSAN DA 14 | – | – | yes |
| 323-395 | Verizon | LSAN DA 06 | – | yes | yes |
| 323-396 | T-Mobile | LSAN DA 14 | 2010-10-18 | yes | yes |
| 323-397 | AT&T | LSAN DA 14 | 2001-04-16 | – | yes |
| 323-398 | Verizon | LSAN DA 03 | 2010-11-19 | yes | yes |
| 323-399 | T-Mobile | MONTEBELLO | 2007-02-13 | yes | yes |
| 323-400 | Verizon | MONTEBELLO | – | yes | yes |
| 323-401 | AT&T | LSAN DA 14 | 2001-09-19 | – | yes |
| 323-402 | T-Mobile | LSAN DA 11 | – | yes | yes |
| 323-403 | T-Mobile | LSAN DA 12 | – | yes | yes |
| 323-404 | Verizon | LSAN DA 03 | 2001-05-10 | yes | yes |
| 323-405 | Verizon | LSAN DA 04 | 2001-05-10 | yes | yes |
| 323-406 | Verizon | LSAN DA 05 | 2001-05-10 | yes | yes |
| 323-407 | T-Mobile | LSAN DA 02 | 2011-01-19 | yes | yes |
| 323-408 | T-Mobile | LSAN DA 14 | 2017-05-22 | yes | yes |
| 323-409 | AT&T | LSAN DA 04 | 2007-02-21 | yes | yes |
| 323-410 | Bandwidth | LSAN DA 02 | – | yes | yes |
| 323-412 | Bandwidth | LSAN DA 02 | 2011-01-25 | yes | yes |
| 323-413 | T-Mobile | LSAN DA 13 | 2011-03-01 | yes | yes |
| 323-414 | Spok | LSAN DA 03 | – | – | yes |
| 323-415 | AT&T | LSAN DA 05 | – | – | yes |
| 323-416 | Peerless | MONTEBELLO | 2012-04-16 | yes | yes |
| 323-417 | Onvoy | LSAN DA 06 | – | – | yes |
| 323-418 | AT&T | LSAN DA 09 | – | yes | yes |
| 323-419 | Lumen | LSAN DA 11 | – | yes | yes |
| 323-420 | AT&T | LSAN DA 09 | – | yes | yes |
| 323-421 | AT&T | LSAN DA 12 | – | yes | yes |
| 323-422 | Verizon | LSAN DA 14 | – | – | yes |
| 323-423 | Lumen | LSAN DA 03 | – | yes | yes |
| 323-424 | AT&T | LSAN DA 13 | – | yes | yes |
| 323-425 | T-Mobile | LSAN DA 06 | 2011-04-22 | yes | yes |
| 323-426 | T-Mobile | LSAN DA 02 | 2011-06-29 | yes | yes |
| 323-427 | T-Mobile | MONTEBELLO | 2011-04-22 | yes | yes |
| 323-428 | AT&T | LSAN DA 14 | – | – | yes |
| 323-429 | 33 WIRELESS INC. | LSAN DA 14 | – | – | yes |
| 323-430 | Verizon | MONTEBELLO | 2013-02-27 | yes | yes |
| 323-431 | Lumen | LSAN DA 12 | – | yes | yes |
| 323-432 | TPx | LSAN DA 08 | – | yes | yes |
| 323-433 | Onvoy | LSAN DA 13 | – | yes | yes |
| 323-434 | AT&T | MONTEBELLO | 2007-03-28 | yes | yes |
| 323-435 | Bandwidth | LSAN DA 06 | 2011-07-01 | yes | yes |
| 323-436 | AT&T | LSAN DA 14 | – | – | yes |
| 323-437 | T-Mobile | MONTEBELLO | 2012-11-21 | yes | yes |
| 323-438 | Bandwidth | LSAN DA 06 | 2011-11-21 | yes | yes |
| 323-439 | T-Mobile | MONTEBELLO | 2007-04-04 | yes | yes |
| 323-440 | AT&T | MONTEBELLO | – | – | yes |
| 323-441 | AT&T | LSAN DA 04 | – | yes | yes |
| 323-442 | Frontier | LSAN DA 04 | – | yes | yes |
| 323-443 | Bandwidth | LSAN DA 03 | – | yes | yes |
| 323-444 | UTILITY TELECOM GROUP, LLC - CA | LSAN DA 06 | – | yes | yes |
| 323-445 | T-Mobile | LSAN DA 14 | 2002-01-29 | yes | yes |
| 323-446 | Verizon | LSAN DA 05 | – | yes | yes |
| 323-447 | AT&T | LSAN DA 14 | 2002-01-29 | – | yes |
| 323-448 | T-Mobile | LSAN DA 09 | – | yes | yes |
| 323-449 | AT&T | LSAN DA 14 | – | – | yes |
| 323-450 | TPx | LSAN DA 14 | – | yes | yes |
| 323-451 | TPx | LSAN DA 09 | – | yes | yes |
| 323-452 | Charter | LSAN DA 13 | 2012-05-30 | yes | yes |
| 323-453 | T-Mobile | MONTEBELLO | 2013-01-14 | yes | yes |
| 323-454 | TPx | LSAN DA 02 | – | yes | yes |
| 323-455 | T-Mobile | LSAN DA 09 | 2007-04-24 | yes | yes |
| 323-456 | TPx | LSAN DA 13 | – | yes | yes |
| 323-457 | Lumen | LSAN DA 06 | 2013-12-19 | yes | yes |
| 323-458 | T-Mobile | MONTEBELLO | 2012-03-02 | yes | yes |
| 323-459 | AT&T | LSAN DA 14 | – | – | yes |
| 323-460 | AT&T | LSAN DA 14 | – | – | yes |
| 323-461 | AT&T | LSAN DA 14 | – | – | yes |
| 323-462 | AT&T | LSAN DA 14 | – | – | yes |
| 323-463 | AT&T | LSAN DA 14 | – | – | yes |
| 323-464 | AT&T | LSAN DA 14 | – | – | yes |
| 323-465 | AT&T | LSAN DA 14 | – | – | yes |
| 323-466 | AT&T | LSAN DA 14 | – | – | yes |
| 323-467 | AT&T | LSAN DA 14 | – | – | yes |
| 323-468 | AT&T | LSAN DA 14 | – | – | yes |
| 323-469 | AT&T | LSAN DA 14 | – | – | yes |
| 323-470 | T-Mobile | LSAN DA 03 | 2007-05-18 | yes | yes |
| 323-471 | Onvoy | LSAN DA 14 | – | yes | yes |
| 323-472 | Lumen | LSAN DA 14 | – | yes | yes |
| 323-473 | Lumen | LSAN DA 02 | – | yes | yes |
| 323-474 | Verizon | LSAN DA 03 | 2001-05-10 | yes | yes |
| 323-475 | Verizon | LSAN DA 05 | 2001-05-10 | yes | yes |
| 323-476 | Verizon | LSAN DA 06 | 2001-05-10 | yes | yes |
| 323-477 | T-Mobile | MONTEBELLO | 2012-07-13 | yes | yes |
| 323-478 | AT&T | LSAN DA 03 | – | yes | yes |
| 323-479 | T-Mobile | MONTEBELLO | 2007-06-07 | yes | yes |
| 323-480 | Verizon | MONTEBELLO | 2012-08-13 | yes | yes |
| 323-481 | T-Mobile | LSAN DA 14 | 2001-10-18 | yes | yes |
| 323-482 | Verizon | MONTEBELLO | 2005-10-11 | yes | yes |
| 323-483 | T-Mobile | MONTEBELLO | 2012-10-01 | yes | yes |
| 323-484 | Charter | LSAN DA 06 | 2013-06-13 | yes | yes |
| 323-485 | Lumen | MONTEBELLO | 2006-03-08 | yes | yes |
| 323-486 | Bandwidth | LSAN DA 02 | 2012-12-03 | yes | yes |
| 323-487 | Bandwidth | LSAN DA 06 | 2012-11-07 | yes | yes |
| 323-488 | Bandwidth | LSAN DA 05 | – | yes | yes |
| 323-489 | T-Mobile | LSAN DA 02 | 2013-08-02 | yes | yes |
| 323-490 | Verizon | MONTEBELLO | 2001-05-10 | yes | yes |
| 323-491 | AT&T | LSAN DA 14 | – | yes | yes |
| 323-492 | Lumen | LSAN DA 09 | – | yes | yes |
| 323-493 | Verizon | LSAN DA 14 | – | – | yes |
| 323-494 | T-Mobile | MONTEBELLO | 2007-06-07 | yes | yes |
| 323-495 | T-Mobile | LSAN DA 02 | – | yes | yes |
| 323-496 | Verizon | LSAN DA 06 | – | – | yes |
| 323-497 | Verizon | LSAN DA 14 | – | – | yes |
| 323-498 | Lumen | LSAN DA 14 | 2013-02-01 | yes | yes |
| 323-499 | T-Mobile | LSAN DA 14 | – | yes | yes |
| 323-500 | Lumen | MONTEBELLO | – | yes | yes |
| 323-501 | T-Mobile | MONTEBELLO | 2007-06-07 | yes | yes |
| 323-502 | Spok | LSAN DA 09 | – | – | yes |
| 323-503 | IP HORIZON LLC | LSAN DA 02 | – | yes | yes |
| 323-504 | T-Mobile | LSAN DA 14 | – | yes | yes |
| 323-505 | TPx | LSAN DA 04 | – | yes | yes |
| 323-506 | T-Mobile | MONTEBELLO | 2007-06-07 | yes | yes |
| 323-507 | Peerless | LSAN DA 03 | – | yes | yes |
| 323-508 | TPx | LSAN DA 12 | – | yes | yes |
| 323-509 | T-Mobile | LSAN DA 03 | – | yes | yes |
| 323-510 | Lumen | LSAN DA 05 | – | yes | yes |
| 323-512 | AT&T | LSAN DA 14 | – | yes | yes |
| 323-513 | Verizon | LSAN DA 06 | 2001-05-10 | yes | yes |
| 323-514 | T-Mobile | MONTEBELLO | 2001-04-23 | yes | yes |
| 323-515 | Lumen | LSAN DA 08 | – | yes | yes |
| 323-516 | Verizon | MONTEBELLO | – | yes | yes |
| 323-517 | Windstream | MONTEBELLO | – | yes | yes |
| 323-518 | Lumen | LSAN DA 05 | 2001-05-03 | yes | yes |
| 323-519 | T-Mobile | MONTEBELLO | 2007-07-03 | yes | yes |
| 323-520 | AT&T | LSAN DA 14 | – | – | yes |
| 323-521 | AT&T | LSAN DA 08 | – | yes | yes |
| 323-522 | TPx | LSAN DA 02 | – | yes | yes |
| 323-523 | TPx | LSAN DA 06 | – | yes | yes |
| 323-524 | Verizon | LSAN DA 08 | 2001-05-10 | yes | yes |
| 323-525 | AT&T | LSAN DA 13 | – | – | yes |
| 323-526 | AT&T | LSAN DA 05 | – | yes | yes |
| 323-527 | Verizon | LSAN DA 09 | 2001-05-10 | yes | yes |
| 323-528 | AT&T | LSAN DA 09 | – | – | yes |
| 323-529 | Verizon | LSAN DA 11 | 2001-05-10 | yes | yes |
| 323-530 | T-Mobile | MONTEBELLO | 2016-07-22 | yes | yes |
| 323-531 | Charter | LSAN DA 09 | 2013-02-14 | yes | yes |
| 323-532 | T-Mobile | LSAN DA 03 | 2007-07-03 | yes | yes |
| 323-533 | Verizon | LSAN DA 14 | – | – | yes |
| 323-534 | T-Mobile | LSAN DA 13 | 2009-12-31 | yes | yes |
| 323-535 | TPx | LSAN DA 02 | – | yes | yes |
| 323-536 | Charter | LSAN DA 14 | 2013-06-13 | yes | yes |
| 323-537 | Verizon | LSAN DA 06 | 2003-07-16 | yes | yes |
| 323-538 | Bandwidth | LSAN DA 06 | 2013-02-11 | yes | yes |
| 323-539 | AT&T | LSAN DA 04 | – | yes | yes |
| 323-540 | T-Mobile | LSAN DA 03 | – | yes | yes |
| 323-541 | AT&T | LSAN DA 09 | – | yes | yes |
| 323-542 | T-Mobile | LSAN DA 03 | 2007-08-29 | yes | yes |
| 323-543 | TPx | LSAN DA 03 | – | yes | yes |
| 323-544 | Verizon | LSAN DA 08 | – | yes | yes |
| 323-545 | AT&T | LSAN DA 12 | – | yes | yes |
| 323-546 | Lumen | LSAN DA 08 | – | yes | yes |
| 323-547 | AT&T | LSAN DA 09 | – | – | yes |
| 323-548 | T-Mobile | MONTEBELLO | 2014-09-22 | yes | yes |
| 323-549 | AT&T | LSAN DA 13 | – | yes | yes |
| 323-550 | AT&T | LSAN DA 03 | – | – | yes |
| 323-551 | AT&T | LSAN DA 03 | – | yes | yes |
| 323-552 | Verizon | LSAN DA 09 | – | yes | yes |
| 323-553 | Bandwidth | LSAN DA 06 | 2014-07-25 | yes | yes |
| 323-554 | SHELCOMM | LSAN DA 06 | 2002-07-17 | – | yes |
| 323-556 | TPx | LSAN DA 13 | – | yes | yes |
| 323-557 | Lumen | LSAN DA 13 | – | yes | yes |
| 323-558 | TPx | MONTEBELLO | – | yes | yes |
| 323-559 | Verizon | LSAN DA 06 | – | – | yes |
| 323-560 | AT&T | LSAN DA 06 | – | – | yes |
| 323-561 | T-Mobile | LSAN DA 03 | 2015-02-03 | yes | yes |
| 323-562 | AT&T | LSAN DA 06 | – | – | yes |
| 323-563 | AT&T | LSAN DA 06 | – | – | yes |
| 323-564 | AT&T | LSAN DA 06 | – | – | yes |
| 323-565 | AT&T | LSAN DA 09 | – | – | yes |
| 323-566 | AT&T | LSAN DA 06 | – | – | yes |
| 323-567 | AT&T | LSAN DA 06 | – | – | yes |
| 323-568 | AT&T | LSAN DA 06 | – | yes | yes |
| 323-569 | AT&T | LSAN DA 06 | – | – | yes |
| 323-570 | T-Mobile | LSAN DA 09 | 2006-09-21 | yes | yes |
| 323-571 | T-Mobile | LSAN DA 13 | – | yes | yes |
| 323-572 | T-Mobile | LSAN DA 14 | – | yes | yes |
| 323-573 | Verizon | LSAN DA 14 | – | – | yes |
| 323-574 | Verizon | LSAN DA 14 | – | – | yes |
| 323-575 | AT&T | LSAN DA 13 | – | – | yes |
| 323-576 | Onvoy | LSAN DA 04 | – | yes | yes |
| 323-577 | Lumen | LSAN DA 04 | – | yes | yes |
| 323-578 | AT&T | LSAN DA 14 | – | – | yes |
| 323-579 | Bandwidth | LSAN DA 02 | – | yes | yes |
| 323-580 | Lumen | LSAN DA 14 | – | yes | yes |
| 323-581 | AT&T | LSAN DA 06 | – | – | yes |
| 323-582 | AT&T | LSAN DA 06 | – | – | yes |
| 323-583 | AT&T | LSAN DA 06 | – | – | yes |
| 323-584 | AT&T | LSAN DA 06 | – | – | yes |
| 323-585 | AT&T | LSAN DA 06 | – | – | yes |
| 323-586 | AT&T | LSAN DA 06 | – | – | yes |
| 323-587 | AT&T | LSAN DA 06 | – | – | yes |
| 323-588 | AT&T | LSAN DA 06 | – | – | yes |
| 323-589 | AT&T | LSAN DA 06 | – | – | yes |
| 323-590 | T-Mobile | LSAN DA 14 | 2007-08-29 | yes | yes |
| 323-591 | Charter | LSAN DA 13 | 2013-03-05 | yes | yes |
| 323-592 | T-Mobile | LSAN DA 13 | 2009-07-06 | yes | yes |
| 323-593 | T-Mobile | LSAN DA 02 | 2014-12-08 | yes | yes |
| 323-594 | AT&T | MONTEBELLO | 2007-08-29 | yes | yes |
| 323-595 | T-Mobile | LSAN DA 13 | 2001-09-19 | yes | yes |
| 323-596 | TPx | LSAN DA 12 | – | yes | yes |
| 323-597 | T-Mobile | MONTEBELLO | 2014-10-17 | yes | yes |
| 323-598 | T-Mobile | MONTEBELLO | 2014-11-24 | yes | yes |
| 323-599 | UTILITY TELECOM GROUP, LLC - CA | LSAN DA 09 | – | yes | yes |
| 323-600 | AT&T | LSAN DA 09 | – | yes | yes |
| 323-601 | Verizon | LSAN DA 12 | 2001-05-10 | yes | yes |
| 323-602 | Verizon | LSAN DA 13 | 2001-05-10 | yes | yes |
| 323-603 | Verizon | LSAN DA 14 | 2001-05-10 | yes | yes |
| 323-604 | AT&T | LSAN DA 05 | – | yes | yes |
| 323-605 | AT&T | LSAN DA 06 | – | yes | yes |
| 323-606 | Verizon | LSAN DA 14 | – | yes | yes |
| 323-607 | Bandwidth | LSAN DA 06 | 2016-06-23 | yes | yes |
| 323-608 | T-Mobile | LSAN DA 14 | 2007-08-29 | yes | yes |
| 323-609 | Verizon | LSAN DA 08 | – | yes | yes |
| 323-610 | AT&T | LSAN DA 14 | 2001-02-22 | – | yes |
| 323-612 | T-Mobile | LSAN DA 04 | 2015-09-22 | yes | yes |
| 323-613 | Onvoy | LSAN DA 03 | 2015-12-01 | yes | yes |
| 323-614 | T-Mobile | MONTEBELLO | 2007-09-24 | yes | yes |
| 323-615 | T-Mobile | LSAN DA 09 | 2015-08-26 | yes | yes |
| 323-616 | T-Mobile | LSAN DA 03 | 2016-03-09 | yes | yes |
| 323-617 | AT&T | LSAN DA 13 | 2002-01-16 | yes | yes |
| 323-618 | Peerless | LSAN DA 02 | – | yes | yes |
| 323-619 | AT&T | LSAN DA 14 | – | – | yes |
| 323-620 | T-Mobile | LSAN DA 11 | 2002-05-17 | – | yes |
| 323-621 | T-Mobile | MONTEBELLO | 2014-01-27 | yes | yes |
| 323-622 | Verizon | MONTEBELLO | – | yes | yes |
| 323-623 | NORTH COUNTY COMMUNICATION CORPORATION - CA | LSAN DA 14 | – | – | yes |
| 323-624 | NORTH COUNTY COMMUNICATION CORPORATION - CA | MONTEBELLO | – | – | yes |
| 323-625 | NORTH COUNTY COMMUNICATION CORPORATION - CA | LSAN DA 06 | – | – | yes |
| 323-626 | NORTH COUNTY COMMUNICATION CORPORATION - CA | MONTEBELLO | – | – | yes |
| 323-627 | Verizon | LSAN DA 06 | 2002-04-15 | – | yes |
| 323-628 | Bandwidth | LSAN DA 14 | 2016-09-30 | yes | yes |
| 323-629 | T-Mobile | MONTEBELLO | 2007-09-24 | yes | yes |
| 323-630 | AT&T | LSAN DA 14 | 2001-06-26 | – | yes |
| 323-631 | T-Mobile | MONTEBELLO | 2014-11-04 | yes | yes |
| 323-632 | T-Mobile | LSAN DA 14 | 2002-05-17 | yes | yes |
| 323-633 | AT&T | LSAN DA 09 | – | – | yes |
| 323-634 | AT&T | LSAN DA 13 | – | – | yes |
| 323-635 | Lumen | LSAN DA 02 | – | yes | yes |
| 323-636 | AT&T | LSAN DA 06 | – | yes | yes |
| 323-637 | T-Mobile | MONTEBELLO | 2005-11-10 | yes | yes |
| 323-638 | Lumen | LSAN DA 06 | – | yes | yes |
| 323-639 | Onvoy | LSAN DA 11 | – | yes | yes |
| 323-640 | AT&T | LSAN DA 14 | 2002-07-17 | – | yes |
| 323-641 | Verizon | LSAN DA 11 | 2001-05-10 | yes | yes |
| 323-642 | Verizon | LSAN DA 12 | 2001-05-10 | yes | yes |
| 323-643 | AT&T | LSAN DA 11 | – | yes | yes |
| 323-644 | AT&T | LSAN DA 02 | – | – | yes |
| 323-645 | Onvoy | LSAN DA 14 | – | yes | yes |
| 323-646 | AT&T | LSAN DA 14 | 2001-04-16 | – | yes |
| 323-647 | TPx | LSAN DA 05 | – | yes | yes |
| 323-648 | TPx | LSAN DA 13 | – | yes | yes |
| 323-649 | T-Mobile | LSAN DA 11 | – | yes | yes |
| 323-650 | AT&T | LSAN DA 14 | – | – | yes |
| 323-651 | AT&T | LSAN DA 13 | – | – | yes |
| 323-652 | AT&T | LSAN DA 09 | 2006-09-18 | yes | yes |
| 323-653 | AT&T | LSAN DA 13 | – | – | yes |
| 323-654 | AT&T | LSAN DA 14 | – | – | yes |
| 323-655 | AT&T | LSAN DA 13 | – | – | yes |
| 323-656 | AT&T | LSAN DA 14 | – | – | yes |
| 323-657 | Bandwidth | LSAN DA 08 | – | yes | yes |
| 323-658 | AT&T | LSAN DA 13 | – | – | yes |
| 323-659 | Verizon | MONTEBELLO | 2021-09-23 | yes | yes |
| 323-660 | AT&T | LSAN DA 02 | – | – | yes |
| 323-661 | AT&T | LSAN DA 02 | – | – | yes |
| 323-662 | AT&T | LSAN DA 02 | – | – | yes |
| 323-663 | AT&T | LSAN DA 02 | – | – | yes |
| 323-664 | AT&T | LSAN DA 02 | – | – | yes |
| 323-665 | AT&T | LSAN DA 02 | – | – | yes |
| 323-666 | AT&T | LSAN DA 02 | – | – | yes |
| 323-667 | AT&T | LSAN DA 02 | – | yes | yes |
| 323-668 | AT&T | LSAN DA 02 | – | – | yes |
| 323-669 | AT&T | LSAN DA 02 | – | – | yes |
| 323-670 | T-Mobile | MONTEBELLO | 2014-12-22 | yes | yes |
| 323-671 | AT&T | LSAN DA 02 | – | yes | yes |
| 323-672 | T-Mobile | LSAN DA 14 | 2014-10-16 | yes | yes |
| 323-673 | Bandwidth | LSAN DA 03 | 2013-12-13 | yes | yes |
| 323-674 | AT&T | LSAN DA 02 | – | yes | yes |
| 323-675 | Onvoy | LSAN DA 03 | – | yes | yes |
| 323-676 | Onvoy | LSAN DA 08 | 2014-11-24 | yes | yes |
| 323-677 | Onvoy | LSAN DA 13 | – | yes | yes |
| 323-678 | AT&T | LSAN DA 09 | – | yes | yes |
| 323-679 | Onvoy | LSAN DA 09 | – | yes | yes |
| 323-680 | T-Mobile | MONTEBELLO | 2007-09-24 | yes | yes |
| 323-681 | AT&T | LSAN DA 03 | – | yes | yes |
| 323-682 | AT&T | LSAN DA 03 | – | yes | yes |
| 323-683 | AT&T | LSAN DA 09 | – | – | yes |
| 323-684 | AT&T | LSAN DA 03 | – | yes | yes |
| 323-685 | AT&T | LSAN DA 05 | – | yes | yes |
| 323-686 | AT&T | LSAN DA 04 | – | yes | yes |
| 323-687 | AT&T | LSAN DA 14 | 2001-10-18 | – | yes |
| 323-688 | T-Mobile | LSAN DA 14 | 2014-09-08 | yes | yes |
| 323-689 | Bandwidth | LSAN DA 08 | 2016-06-23 | yes | yes |
| 323-690 | T-Mobile | LSAN DA 11 | 2015-05-05 | yes | yes |
| 323-691 | T-Mobile | MONTEBELLO | – | yes | yes |
| 323-692 | AT&T | LSAN DA 13 | – | – | yes |
| 323-693 | Onvoy | MONTEBELLO | – | yes | yes |
| 323-694 | Bandwidth | LSAN DA 02 | 2014-02-28 | yes | yes |
| 323-695 | Verizon | MONTEBELLO | 2007-09-28 | yes | yes |
| 323-696 | AT&T | LSAN DA 09 | – | yes | yes |
| 323-697 | AT&T | MONTEBELLO | 2001-04-16 | – | yes |
| 323-698 | AT&T | LSAN DA 14 | – | yes | yes |
| 323-699 | American Messaging | LSAN DA 08 | – | – | yes |
| 323-701 | Onvoy | LSAN DA 14 | 2015-12-15 | yes | yes |
| 323-702 | T-Mobile | LSAN DA 12 | 2002-05-17 | – | yes |
| 323-703 | T-Mobile | LSAN DA 14 | 2007-10-10 | yes | yes |
| 323-704 | IP HORIZON LLC | LSAN DA 05 | – | yes | yes |
| 323-705 | T-Mobile | LSAN DA 02 | 2016-06-17 | yes | yes |
| 323-706 | T-Mobile | LSAN DA 14 | 2007-10-29 | yes | yes |
| 323-707 | T-Mobile | MONTEBELLO | 2001-06-26 | yes | yes |
| 323-708 | AT&T | LSAN DA 14 | 2002-03-21 | – | yes |
| 323-709 | Bandwidth | LSAN DA 11 | – | yes | yes |
| 323-710 | T-Mobile | LSAN DA 14 | 2007-10-29 | yes | yes |
| 323-712 | T-Mobile | MONTEBELLO | 2002-06-14 | yes | yes |
| 323-713 | Peerless | LSAN DA 09 | 2016-07-11 | yes | yes |
| 323-714 | T-Mobile | MONTEBELLO | 2013-07-15 | yes | yes |
| 323-715 | AT&T | MONTEBELLO | 2001-08-22 | – | yes |
| 323-716 | T-Mobile | LSAN DA 11 | 2015-11-17 | yes | yes |
| 323-717 | AT&T | LSAN DA 09 | – | – | yes |
| 323-718 | T-Mobile | MONTEBELLO | 2006-03-02 | yes | yes |
| 323-719 | AT&T | LSAN DA 09 | 2001-05-18 | – | yes |
| 323-720 | AT&T | MONTEBELLO | – | – | yes |
| 323-721 | AT&T | MONTEBELLO | – | – | yes |
| 323-722 | AT&T | MONTEBELLO | – | – | yes |
| 323-723 | AT&T | LSAN DA 05 | – | yes | yes |
| 323-724 | AT&T | MONTEBELLO | – | – | yes |
| 323-725 | AT&T | MONTEBELLO | – | – | yes |
| 323-726 | AT&T | MONTEBELLO | – | – | yes |
| 323-727 | AT&T | MONTEBELLO | – | – | yes |
| 323-728 | AT&T | MONTEBELLO | – | – | yes |
| 323-729 | AT&T | LSAN DA 05 | – | yes | yes |
| 323-730 | AT&T | LSAN DA 11 | – | – | yes |
| 323-731 | AT&T | LSAN DA 11 | – | – | yes |
| 323-732 | AT&T | LSAN DA 11 | – | – | yes |
| 323-733 | AT&T | LSAN DA 11 | – | – | yes |
| 323-734 | AT&T | LSAN DA 11 | – | – | yes |
| 323-735 | AT&T | LSAN DA 11 | – | – | yes |
| 323-736 | Bandwidth | LSAN DA 14 | 2014-02-28 | yes | yes |
| 323-737 | AT&T | LSAN DA 11 | – | – | yes |
| 323-738 | T-Mobile | LSAN DA 13 | 2014-12-23 | yes | yes |
| 323-739 | Onvoy | LSAN DA 03 | 2008-02-15 | yes | yes |
| 323-740 | T-Mobile | LSAN DA 11 | 2015-02-06 | yes | yes |
| 323-741 | Verizon | LSAN DA 02 | 2014-03-04 | yes | yes |
| 323-742 | T-Mobile | MONTEBELLO | 2006-04-25 | yes | yes |
| 323-743 | IP HORIZON LLC | LSAN DA 06 | – | yes | yes |
| 323-744 | Bandwidth | LSAN DA 06 | 2010-02-22 | yes | yes |
| 323-745 | Onvoy | LSAN DA 14 | 2014-05-02 | yes | yes |
| 323-746 | AT&T | LSAN DA 13 | 2014-06-06 | yes | yes |
| 323-747 | T-Mobile | LSAN DA 03 | 2006-10-16 | yes | yes |
| 323-749 | Charter | LSAN DA 06 | 2015-05-13 | yes | yes |
| 323-750 | AT&T | LSAN DA 09 | – | – | yes |
| 323-751 | AT&T | LSAN DA 09 | – | – | yes |
| 323-752 | AT&T | LSAN DA 09 | – | – | yes |
| 323-753 | AT&T | LSAN DA 09 | – | – | yes |
| 323-754 | AT&T | LSAN DA 09 | – | yes | yes |
| 323-755 | AT&T | LSAN DA 09 | – | yes | yes |
| 323-756 | AT&T | LSAN DA 09 | – | – | yes |
| 323-757 | AT&T | LSAN DA 09 | – | yes | yes |
| 323-758 | AT&T | LSAN DA 09 | – | – | yes |
| 323-759 | AT&T | LSAN DA 09 | – | – | yes |
| 323-760 | AT&T | LSAN DA 14 | 2019-01-22 | yes | yes |
| 323-761 | AT&T | LSAN DA 13 | – | yes | yes |
| 323-762 | AT&T | LSAN DA 14 | – | yes | yes |
| 323-763 | Bandwidth | LSAN DA 06 | 2017-11-27 | yes | yes |
| 323-764 | American Messaging | LSAN DA 02 | – | – | yes |
| 323-765 | AT&T | MONTEBELLO | 2015-07-02 | yes | yes |
| 323-766 | AT&T | LSAN DA 11 | – | yes | yes |
| 323-767 | AT&T | MONTEBELLO | – | yes | yes |
| 323-768 | AT&T | LSAN DA 05 | – | yes | yes |
| 323-769 | AT&T | LSAN DA 14 | – | yes | yes |
| 323-770 | AT&T | LSAN DA 09 | – | yes | yes |
| 323-771 | AT&T | LSAN DA 06 | – | – | yes |
| 323-772 | AT&T | LSAN DA 09 | – | yes | yes |
| 323-773 | AT&T | LSAN DA 06 | – | – | yes |
| 323-774 | AT&T | LSAN DA 06 | – | yes | yes |
| 323-775 | AT&T | LSAN DA 06 | – | yes | yes |
| 323-776 | AT&T | LSAN DA 09 | – | yes | yes |
| 323-777 | AT&T | LSAN DA 09 | – | – | yes |
| 323-778 | AT&T | LSAN DA 09 | – | – | yes |
| 323-779 | AT&T | LSAN DA 09 | – | – | yes |
| 323-780 | AT&T | LSAN DA 05 | – | – | yes |
| 323-781 | AT&T | LSAN DA 09 | – | yes | yes |
| 323-782 | AT&T | LSAN DA 13 | – | – | yes |
| 323-783 | AT&T | LSAN DA 02 | – | – | yes |
| 323-784 | Onvoy | LSAN DA 13 | – | yes | yes |
| 323-785 | TPx | LSAN DA 14 | – | – | yes |
| 323-786 | AT&T | LSAN DA 09 | – | yes | yes |
| 323-787 | T-Mobile | MONTEBELLO | 2006-08-17 | yes | yes |
| 323-788 | T-Mobile | LSAN DA 05 | 2002-09-19 | – | yes |
| 323-789 | AT&T | LSAN DA 09 | – | yes | yes |
| 323-790 | TPx | LSAN DA 14 | – | yes | yes |
| 323-791 | AT&T | LSAN DA 14 | – | – | yes |
| 323-792 | Onvoy | LSAN DA 12 | – | yes | yes |
| 323-793 | Verizon | LSAN DA 14 | – | – | yes |
| 323-794 | T-Mobile | LSAN DA 14 | 2015-02-24 | yes | yes |
| 323-795 | Lumen | LSAN DA 11 | – | yes | yes |
| 323-796 | TPx | LSAN DA 05 | – | yes | yes |
| 323-797 | Verizon | MONTEBELLO | 2014-09-09 | yes | yes |
| 323-798 | Charter | LSAN DA 14 | 2008-02-23 | yes | yes |
| 323-799 | Lumen | LSAN DA 14 | – | yes | yes |
| 323-800 | Onvoy | LSAN DA 05 | – | yes | yes |
| 323-801 | Verizon | LSAN DA 13 | 2001-05-10 | yes | yes |
| 323-802 | Verizon | LSAN DA 14 | 2001-05-10 | yes | yes |
| 323-803 | Verizon | MONTEBELLO | 2001-05-10 | yes | yes |
| 323-804 | Verizon | LSAN DA 14 | – | – | yes |
| 323-805 | Verizon | LSAN DA 02 | – | yes | yes |
| 323-806 | Verizon | LSAN DA 14 | – | – | yes |
| 323-807 | Verizon | LSAN DA 06 | 2001-06-26 | – | yes |
| 323-808 | UTILITY TELECOM GROUP, LLC - CA | LSAN DA 14 | – | – | yes |
| 323-809 | IP HORIZON LLC | LSAN DA 14 | – | yes | yes |
| 323-810 | Verizon | LSAN DA 14 | – | – | yes |
| 323-812 | T-Mobile | LSAN DA 14 | 2008-03-11 | yes | yes |
| 323-813 | TPx | LSAN DA 08 | – | yes | yes |
| 323-814 | Bandwidth | LSAN DA 09 | 2018-03-13 | yes | yes |
| 323-815 | Lumen | LSAN DA 12 | – | yes | yes |
| 323-816 | T-Mobile | MONTEBELLO | – | yes | yes |
| 323-817 | AT&T | LSAN DA 14 | – | yes | yes |
| 323-818 | Bandwidth | LSAN DA 03 | – | yes | yes |
| 323-819 | Verizon | LSAN DA 14 | – | – | yes |
| 323-820 | AT&T | LSAN DA 09 | – | yes | yes |
| 323-821 | Verizon | LSAN DA 14 | – | – | yes |
| 323-822 | AT&T | LSAN DA 14 | – | yes | yes |
| 323-823 | Verizon | LSAN DA 14 | – | – | yes |
| 323-824 | T-Mobile | LSAN DA 14 | 2024-04-12 | yes | yes |
| 323-825 | Lumen | LSAN DA 05 | – | yes | yes |
| 323-826 | AT&T | LSAN DA 06 | – | yes | yes |
| 323-827 | T-Mobile | MONTEBELLO | 2014-12-22 | yes | yes |
| 323-828 | Verizon | LSAN DA 14 | – | – | yes |
| 323-829 | Verizon | LSAN DA 14 | – | – | yes |
| 323-830 | T-Mobile | LSAN DA 14 | 2008-03-11 | yes | yes |
| 323-831 | T-Mobile | LSAN DA 05 | 2016-10-18 | yes | yes |
| 323-832 | AT&T | MONTEBELLO | – | yes | yes |
| 323-833 | T-Mobile | LSAN DA 09 | 2001-09-19 | yes | yes |
| 323-834 | TPx | LSAN DA 09 | – | yes | yes |
| 323-835 | TPx | LSAN DA 06 | – | yes | yes |
| 323-836 | AT&T | LSAN DA 14 | – | yes | yes |
| 323-837 | AT&T | MONTEBELLO | – | yes | yes |
| 323-838 | AT&T | MONTEBELLO | – | – | yes |
| 323-839 | T-Mobile | LSAN DA 14 | – | yes | yes |
| 323-840 | T-Mobile | LSAN DA 11 | 2015-08-26 | yes | yes |
| 323-841 | T-Mobile | LSAN DA 09 | 2001-09-19 | – | yes |
| 323-842 | T-Mobile | LSAN DA 03 | 2002-05-17 | – | yes |
| 323-843 | Onvoy | LSAN DA 05 | – | yes | yes |
| 323-844 | Lumen | LSAN DA 08 | – | yes | yes |
| 323-845 | AT&T | LSAN DA 14 | – | yes | yes |
| 323-846 | AT&T | LSAN DA 08 | – | – | yes |
| 323-847 | T-Mobile | LSAN DA 13 | 2015-03-09 | yes | yes |
| 323-848 | AT&T | LSAN DA 14 | – | yes | yes |
| 323-849 | AT&T | LSAN DA 14 | – | yes | yes |
| 323-850 | AT&T | LSAN DA 14 | – | – | yes |
| 323-851 | AT&T | LSAN DA 14 | – | – | yes |
| 323-852 | AT&T | LSAN DA 13 | – | yes | yes |
| 323-853 | Peerless | MONTEBELLO | 2016-11-18 | yes | yes |
| 323-854 | Verizon | LSAN DA 14 | – | – | yes |
| 323-855 | T-Mobile | LSAN DA 12 | – | yes | yes |
| 323-856 | AT&T | LSAN DA 14 | – | yes | yes |
| 323-857 | AT&T | LSAN DA 13 | – | – | yes |
| 323-858 | Spok | LSAN DA 03 | – | – | yes |
| 323-859 | TPx | LSAN DA 05 | – | yes | yes |
| 323-860 | AT&T | LSAN DA 14 | – | – | yes |
| 323-861 | T-Mobile | LSAN DA 09 | 2006-02-22 | yes | yes |
| 323-862 | AT&T | LSAN DA 14 | – | – | yes |
| 323-863 | Lumen | LSAN DA 05 | – | yes | yes |
| 323-864 | T-Mobile | LSAN DA 12 | – | yes | yes |
| 323-865 | Frontier | LSAN DA 04 | – | yes | yes |
| 323-866 | AT&T | LSAN DA 13 | – | yes | yes |
| 323-867 | T-Mobile | MONTEBELLO | – | yes | yes |
| 323-868 | AT&T | LSAN DA 14 | – | – | yes |
| 323-869 | AT&T | MONTEBELLO | – | – | yes |
| 323-870 | AT&T | LSAN DA 11 | – | yes | yes |
| 323-871 | AT&T | LSAN DA 14 | – | – | yes |
| 323-872 | AT&T | LSAN DA 14 | – | yes | yes |
| 323-873 | AT&T | LSAN DA 14 | – | yes | yes |
| 323-874 | AT&T | LSAN DA 14 | – | – | yes |
| 323-875 | AT&T | LSAN DA 14 | – | yes | yes |
| 323-876 | AT&T | LSAN DA 14 | – | – | yes |
| 323-877 | AT&T | LSAN DA 14 | – | yes | yes |
| 323-878 | AT&T | LSAN DA 14 | – | – | yes |
| 323-879 | AT&T | LSAN DA 13 | – | yes | yes |
| 323-880 | T-Mobile | LSAN DA 09 | 2017-04-07 | yes | yes |
| 323-881 | AT&T | LSAN DA 05 | – | – | yes |
| 323-882 | AT&T | LSAN DA 14 | – | – | yes |
| 323-883 | AT&T | LSAN DA 14 | – | – | yes |
| 323-884 | T-Mobile | MONTEBELLO | 2014-10-14 | yes | yes |
| 323-885 | UTILITY TELECOM GROUP, LLC - CA | LSAN DA 03 | – | yes | yes |
| 323-886 | Bandwidth | LSAN DA 06 | 2014-10-30 | yes | yes |
| 323-887 | AT&T | MONTEBELLO | – | – | yes |
| 323-888 | AT&T | MONTEBELLO | – | – | yes |
| 323-889 | AT&T | MONTEBELLO | – | yes | yes |
| 323-890 | AT&T | MONTEBELLO | – | yes | yes |
| 323-891 | T-Mobile | LSAN DA 14 | 2014-12-23 | yes | yes |
| 323-892 | T-Mobile | LSAN DA 03 | 2006-10-04 | yes | yes |
| 323-893 | AT&T | MONTEBELLO | 2001-04-23 | – | yes |
| 323-894 | Onvoy | LSAN DA 06 | 2014-11-24 | yes | yes |
| 323-895 | AT&T | MONTEBELLO | 2008-03-28 | yes | yes |
| 323-896 | Verizon | LSAN DA 14 | – | – | yes |
| 323-897 | Bandwidth | LSAN DA 08 | 2015-07-02 | yes | yes |
| 323-898 | AT&T | LSAN DA 14 | – | yes | yes |
| 323-899 | T-Mobile | LSAN DA 13 | 2002-05-17 | – | yes |
| 323-900 | AT&T | LSAN DA 13 | – | yes | yes |
| 323-901 | T-Mobile | LSAN DA 13 | 2008-12-10 | yes | yes |
| 323-902 | Verizon | LSAN DA 11 | – | yes | yes |
| 323-903 | Verizon | LSAN DA 12 | – | yes | yes |
| 323-904 | Verizon | LSAN DA 13 | – | yes | yes |
| 323-905 | TPx | LSAN DA 09 | – | yes | yes |
| 323-906 | AT&T | LSAN DA 02 | – | yes | yes |
| 323-907 | Lumen | LSAN DA 06 | – | yes | yes |
| 323-908 | Lumen | LSAN DA 08 | – | – | yes |
| 323-909 | AT&T | LSAN DA 04 | – | yes | yes |
| 323-910 | Bandwidth | LSAN DA 14 | 2018-03-23 | yes | yes |
| 323-912 | AT&T | LSAN DA 02 | – | – | yes |
| 323-913 | AT&T | LSAN DA 02 | – | – | yes |
| 323-914 | AT&T | MONTEBELLO | 2017-03-29 | yes | yes |
| 323-915 | T-Mobile | LSAN DA 06 | 2009-02-09 | yes | yes |
| 323-916 | Verizon | LSAN DA 03 | – | yes | yes |
| 323-917 | Bandwidth | LSAN DA 13 | 2016-06-29 | yes | yes |
| 323-918 | Bandwidth | LSAN DA 08 | 2017-07-19 | yes | yes |
| 323-919 | Verizon | LSAN DA 06 | – | yes | yes |
| 323-920 | Charter | LSAN DA 09 | 2006-09-18 | yes | yes |
| 323-921 | T-Mobile | LSAN DA 02 | – | yes | yes |
| 323-922 | Onvoy | LSAN DA 02 | – | yes | yes |
| 323-923 | TPx | LSAN DA 06 | – | yes | yes |
| 323-924 | Lumen | LSAN DA 12 | – | yes | yes |
| 323-925 | T-Mobile | LSAN DA 03 | 2016-09-26 | yes | yes |
| 323-926 | T-Mobile | MONTEBELLO | 2015-02-09 | yes | yes |
| 323-927 | Onvoy | LSAN DA 11 | – | yes | yes |
| 323-928 | T-Mobile | LSAN DA 02 | – | yes | yes |
| 323-929 | Verizon | LSAN DA 06 | 2010-04-08 | yes | yes |
| 323-930 | AT&T | LSAN DA 13 | – | – | yes |
| 323-931 | AT&T | LSAN DA 13 | – | – | yes |
| 323-932 | AT&T | LSAN DA 13 | – | – | yes |
| 323-933 | AT&T | LSAN DA 13 | – | – | yes |
| 323-934 | AT&T | LSAN DA 13 | – | – | yes |
| 323-935 | AT&T | LSAN DA 13 | – | – | yes |
| 323-936 | AT&T | LSAN DA 13 | – | – | yes |
| 323-937 | AT&T | LSAN DA 13 | – | – | yes |
| 323-938 | AT&T | LSAN DA 13 | – | – | yes |
| 323-939 | AT&T | LSAN DA 13 | – | – | yes |
| 323-940 | Verizon | LSAN DA 04 | – | yes | yes |
| 323-941 | Charter | LSAN DA 02 | 2024-06-03 | yes | yes |
| 323-942 | T-Mobile | LSAN DA 09 | – | yes | yes |
| 323-943 | T-Mobile | LSAN DA 05 | – | yes | yes |
| 323-944 | AT&T | LSAN DA 13 | – | yes | yes |
| 323-945 | Lumen | MONTEBELLO | – | yes | yes |
| 323-946 | TPx | LSAN DA 14 | 2015-06-12 | yes | yes |
| 323-947 | AT&T | MONTEBELLO | – | yes | yes |
| 323-948 | Verizon | LSAN DA 05 | – | yes | yes |
| 323-949 | T-Mobile | MONTEBELLO | 2019-03-19 | yes | yes |
| 323-951 | AT&T | LSAN DA 13 | – | – | yes |
| 323-952 | T-Mobile | LSAN DA 14 | 2008-05-02 | yes | yes |
| 323-953 | AT&T | LSAN DA 02 | – | – | yes |
| 323-954 | AT&T | LSAN DA 13 | – | – | yes |
| 323-955 | Bandwidth | LSAN DA 13 | 2018-03-13 | yes | yes |
| 323-956 | AT&T | LSAN DA 14 | – | – | yes |
| 323-957 | AT&T | LSAN DA 14 | – | – | yes |
| 323-960 | AT&T | LSAN DA 14 | – | – | yes |
| 323-961 | T-Mobile | LSAN DA 09 | 2016-07-15 | yes | yes |
| 323-962 | AT&T | LSAN DA 14 | – | – | yes |
| 323-963 | T-Mobile | LSAN DA 14 | 2008-05-02 | yes | yes |
| 323-964 | AT&T | LSAN DA 13 | – | – | yes |
| 323-965 | AT&T | LSAN DA 13 | – | – | yes |
| 323-966 | AT&T | LSAN DA 13 | – | – | yes |
| 323-967 | Verizon | LSAN DA 09 | – | yes | yes |
| 323-968 | Bandwidth | LSAN DA 05 | 2017-06-27 | yes | yes |
| 323-969 | AT&T | LSAN DA 14 | – | – | yes |
| 323-970 | AT&T | LSAN DA 09 | 2018-10-19 | yes | yes |
| 323-971 | AT&T | LSAN DA 09 | – | – | yes |
| 323-972 | T-Mobile | MONTEBELLO | – | yes | yes |
| 323-973 | AT&T | LSAN DA 06 | – | yes | yes |
| 323-974 | T-Mobile | LSAN DA 12 | – | yes | yes |
| 323-975 | T-Mobile | LSAN DA 03 | 2015-04-13 | yes | yes |
| 323-976 | NORTH COUNTY COMMUNICATION CORPORATION - CA | LSAN DA 14 | 2011-06-08 | – | yes |
| 323-977 | T-Mobile | LSAN DA 09 | – | yes | yes |
| 323-978 | Verizon | LSAN DA 14 | – | yes | yes |
| 323-979 | AT&T | LSAN DA 06 | – | yes | yes |
| 323-980 | AT&T | LSAN DA 05 | – | yes | yes |
| 323-981 | AT&T | LSAN DA 05 | – | – | yes |
| 323-982 | AT&T | LSAN DA 03 | – | yes | yes |
| 323-983 | Verizon | LSAN DA 06 | – | yes | yes |
| 323-984 | T-Mobile | LSAN DA 02 | 2010-05-27 | yes | yes |
| 323-985 | T-Mobile | LSAN DA 08 | – | yes | yes |
| 323-986 | Onvoy | LSAN DA 04 | 2016-07-18 | yes | yes |
| 323-987 | TPx | LSAN DA 04 | – | yes | yes |
| 323-988 | Lumen | LSAN DA 13 | – | yes | yes |
| 323-989 | TPx | LSAN DA 11 | 2001-01-23 | yes | yes |
| 323-990 | Bandwidth | LSAN DA 04 | 2018-03-13 | yes | yes |
| 323-991 | Bandwidth | LSAN DA 08 | 2018-03-09 | yes | yes |
| 323-992 | Lumen | LSAN DA 09 | – | yes | yes |
| 323-993 | AT&T | LSAN DA 14 | – | – | yes |
| 323-994 | T-Mobile | LSAN DA 14 | 2016-11-11 | yes | yes |
| 323-995 | UTILITY TELECOM GROUP, LLC - CA | LSAN DA 13 | – | yes | yes |
| 323-996 | Peerless | LSAN DA 06 | 2016-11-18 | yes | yes |
| 323-997 | T-Mobile | LSAN DA 12 | 2001-05-18 | yes | yes |
| 323-998 | AT&T | LSAN DA 11 | – | yes | yes |
| 323-999 | TPx | LSAN DA 03 | – | yes | yes |
Frequently asked
How many prefixes does area code 323 have?
786 NXX blocks are assigned of 786 possible. Each block is 10,000 consecutive numbers, so the code currently covers about 7,860 thousand-number ranges across 12 rate centers.
What do the first three digits after 323 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 323 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 323 table?
That the block is in thousands-block pooling: carriers draw 1,000-number lots from it instead of taking all 10,000. 524 of 323'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.
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