Verified Nov 1, 2026 · Source: NANPA CO Code Assignment Records
Area code 248 prefixes
784 of the 786 possible NXX blocks are assigned in area code 248 (99.7% of capacity), spread across 21 rate centers and 28 holders. The largest holders are MICHIGAN BELL TEL CO (250 blocks, 31.9%), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI (72 blocks, 9.2%), NEW CINGULAR WIRELESS PCS, LLC - IL (66 blocks, 8.4%). Grouped by brand, AT&T accounts for 353 blocks; brand-attributable holders cover 95% 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 2001-01-25 to 2025-12-16, with 29 blocks handed out in 2001 alone. 473 blocks (60%) 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. 89 were growth assignments – additional blocks to a carrier that had already filled its earlier ones.
784 assigned blocks of 786
21 rate centers
28 holders of record
60% in thousands-block pooling
Largest holders in 248
| Holder of record, as NANPA names it | Brand | Blocks | Share |
|---|---|---|---|
| MICHIGAN BELL TEL CO | AT&T | 250 | 31.9% |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI | Verizon | 72 | 9.2% |
| NEW CINGULAR WIRELESS PCS, LLC - IL | AT&T | 66 | 8.4% |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | Verizon | 62 | 7.9% |
| LEVEL 3 COMMUNICATIONS, LLC - MI | Lumen | 58 | 7.4% |
| METROPCS, INC. | T-Mobile | 49 | 6.2% |
| PAETEC ITEL, LLC | Windstream | 42 | 5.4% |
| TELEPORT COMMUNICATIONS AMERICA, LLC - MI | AT&T | 36 | 4.6% |
| OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | T-Mobile | 35 | 4.5% |
| AMERICAN MESSAGING SERVICES, LLC | American Messaging | 19 | 2.4% |
| COMCAST IP PHONE, LLC | Comcast | 15 | 1.9% |
| INTERACTIVE SERVICES NETWORK, INC. | – | 14 | 1.8% |
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 784 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 |
|---|---|---|---|---|---|
| 248-200 | Windstream | SOUTHFIELD | 2003-10-01 | yes | yes |
| 248-201 | WIRETAP TELECOM, LLC. | SOUTHFIELD | 2023-08-17 | yes | yes |
| 248-202 | AT&T | PONTIAC | – | – | yes |
| 248-203 | AT&T | BIRMINGHAM | – | – | yes |
| 248-204 | AT&T | SOUTHFIELD | – | – | yes |
| 248-205 | AT&T | BIRMINGHAM | – | yes | yes |
| 248-206 | Lumen | ROYAL OAK | 2014-02-12 | yes | yes |
| 248-207 | Verizon | NORTHVILLE | – | – | yes |
| 248-208 | AT&T | SOUTHFIELD | – | yes | yes |
| 248-209 | Verizon | PONTIAC | – | yes | yes |
| 248-210 | T-Mobile | PONTIAC | – | yes | yes |
| 248-212 | T-Mobile | PONTIAC | – | yes | yes |
| 248-213 | AT&T | SOUTHFIELD | – | yes | yes |
| 248-214 | T-Mobile | PONTIAC | – | yes | yes |
| 248-215 | AT&T | HOLLY | – | yes | yes |
| 248-216 | Verizon | MILFDWH LK | 2013-02-01 | yes | yes |
| 248-217 | AT&T | ROYAL OAK | – | – | yes |
| 248-218 | Verizon | ROCHESTER | – | yes | yes |
| 248-219 | AT&T | ROYAL OAK | – | – | yes |
| 248-220 | Windstream | BIRMINGHAM | – | yes | yes |
| 248-221 | AT&T | PONTIAC | 2013-07-30 | yes | yes |
| 248-222 | Verizon | MILFDWH LK | 2013-02-01 | yes | yes |
| 248-223 | AT&T | SOUTHFIELD | – | yes | yes |
| 248-224 | AT&T | ROYAL OAK | – | – | yes |
| 248-225 | AT&T | BIRMINGHAM | – | – | yes |
| 248-226 | AT&T | SOUTHFIELD | – | yes | yes |
| 248-227 | AT&T | BIRMINGHAM | – | – | yes |
| 248-228 | 123.NET, LLC | SOUTHFIELD | – | yes | yes |
| 248-229 | AT&T | BIRMINGHAM | – | – | yes |
| 248-230 | Lumen | PONTIAC | – | yes | yes |
| 248-231 | AT&T | NORTHVILLE | – | – | yes |
| 248-232 | Lumen | PONTIAC | – | yes | yes |
| 248-233 | Lumen | SOUTHFIELD | – | – | yes |
| 248-234 | Lumen | SOUTHFIELD | 2012-06-27 | yes | yes |
| 248-235 | American Messaging | ROYAL OAK | – | – | yes |
| 248-236 | AT&T | OXFORD | – | yes | yes |
| 248-237 | Lumen | AUBURN HTS | – | yes | yes |
| 248-238 | T-Mobile | CLARKSTON | 2008-02-07 | yes | yes |
| 248-239 | Verizon | PONTIAC | – | yes | yes |
| 248-240 | T-Mobile | HOLLY | – | yes | yes |
| 248-241 | AT&T | CLARKSTON | – | yes | yes |
| 248-242 | AT&T | COMMERCE | – | yes | yes |
| 248-243 | Lumen | AUBURN HTS | – | yes | yes |
| 248-244 | AT&T | TROY | – | – | yes |
| 248-245 | AT&T | HOLLY | – | – | yes |
| 248-246 | Lumen | ROYAL OAK | – | yes | yes |
| 248-247 | 123.NET, LLC | TROY | – | yes | yes |
| 248-248 | Charter | NORTHVILLE | 2023-05-17 | yes | yes |
| 248-249 | T-Mobile | HOLLY | – | yes | yes |
| 248-250 | Comcast | TROY | – | yes | yes |
| 248-251 | Verizon | TROY | 2008-02-14 | yes | yes |
| 248-252 | T-Mobile | W BLOOMFLD | – | – | yes |
| 248-253 | AT&T | PONTIAC | – | – | yes |
| 248-254 | Windstream | W BLOOMFLD | – | yes | yes |
| 248-255 | T-Mobile | WALLEDLAKE | – | yes | yes |
| 248-256 | Lumen | OXFORD | – | yes | yes |
| 248-257 | Lumen | DRAYTON PL | – | yes | yes |
| 248-258 | AT&T | BIRMINGHAM | – | – | yes |
| 248-259 | T-Mobile | ROYAL OAK | 2001-05-02 | yes | yes |
| 248-260 | Verizon | AUBURN HTS | – | yes | yes |
| 248-261 | AT&T | BIRMINGHAM | 2025-12-16 | yes | yes |
| 248-262 | AT&T | SOUTHFIELD | – | yes | yes |
| 248-263 | AT&T | SOUTHFIELD | – | yes | yes |
| 248-264 | Verizon | SOUTH LYON | – | yes | yes |
| 248-265 | AT&T | BIRMINGHAM | – | yes | yes |
| 248-266 | Bandwidth | ROCHESTER | 2010-05-21 | yes | yes |
| 248-267 | AT&T | BIRMINGHAM | – | – | yes |
| 248-268 | Comcast | ROYAL OAK | 2013-04-05 | yes | yes |
| 248-269 | AT&T | TROY | – | yes | yes |
| 248-270 | Verizon | AUBURN HTS | – | yes | yes |
| 248-271 | American Messaging | HOLLY | – | – | yes |
| 248-272 | Spok | PONTIAC | – | – | yes |
| 248-273 | AT&T | TROY | – | – | yes |
| 248-274 | Lumen | OXFORD | – | yes | yes |
| 248-275 | Lumen | TROY | – | yes | yes |
| 248-276 | AT&T | PONTIAC | – | – | yes |
| 248-277 | T-Mobile | NORTHVILLE | – | yes | yes |
| 248-278 | T-Mobile | SOUTH LYON | 2011-05-13 | yes | yes |
| 248-279 | American Messaging | NORTHVILLE | – | – | yes |
| 248-280 | AT&T | ROYAL OAK | – | – | yes |
| 248-281 | Verizon | SOUTHFIELD | – | yes | yes |
| 248-282 | Verizon | BIRMINGHAM | – | yes | yes |
| 248-283 | Verizon | BIRMINGHAM | – | yes | yes |
| 248-284 | Verizon | ROYAL OAK | – | yes | yes |
| 248-285 | Verizon | PONTIAC | 2011-01-26 | yes | yes |
| 248-286 | INTERACTIVE SERVICES NETWORK, INC. | SOUTHFIELD | – | – | yes |
| 248-287 | Verizon | LAKE ORION | – | yes | yes |
| 248-288 | AT&T | ROYAL OAK | – | – | yes |
| 248-289 | Comcast | AUBURN HTS | – | yes | yes |
| 248-290 | Windstream | BIRMINGHAM | – | yes | yes |
| 248-291 | Verizon | ROYAL OAK | – | yes | yes |
| 248-292 | Verizon | PONTIAC | – | yes | yes |
| 248-293 | AT&T | AUBURN HTS | – | – | yes |
| 248-294 | AT&T | PONTIAC | 2013-10-07 | yes | yes |
| 248-295 | Verizon | WALLEDLAKE | – | yes | yes |
| 248-296 | Verizon | PONTIAC | 2013-01-11 | yes | yes |
| 248-297 | Verizon | CLARKSTON | 2013-02-01 | yes | yes |
| 248-298 | Windstream | ROYAL OAK | – | yes | yes |
| 248-299 | AT&T | AUBURN HTS | – | – | yes |
| 248-300 | AT&T | ROYAL OAK | 2024-12-30 | yes | yes |
| 248-301 | Comcast | COMMERCE | 2013-11-08 | yes | yes |
| 248-302 | Verizon | SOUTHFIELD | 2001-12-28 | – | yes |
| 248-303 | Verizon | PONTIAC | – | – | yes |
| 248-304 | AT&T | SOUTHFIELD | – | yes | yes |
| 248-305 | AT&T | NORTHVILLE | – | yes | yes |
| 248-306 | Windstream | FARMINGTON | – | yes | yes |
| 248-307 | AT&T | ROYAL OAK | – | yes | yes |
| 248-308 | Verizon | NORTHVILLE | 2013-04-21 | yes | yes |
| 248-309 | Verizon | PONTIAC | 2013-10-07 | yes | yes |
| 248-310 | Verizon | PONTIAC | – | – | yes |
| 248-312 | AT&T | BIRMINGHAM | – | yes | yes |
| 248-313 | Windstream | WALLEDLAKE | 2005-06-02 | yes | yes |
| 248-314 | American Messaging | NORTHVILLE | – | – | yes |
| 248-315 | AT&T | TROY | 2021-09-21 | yes | yes |
| 248-316 | Spok | ROYAL OAK | – | – | yes |
| 248-317 | Spok | ROYAL OAK | – | – | yes |
| 248-318 | Verizon | PONTIAC | – | – | yes |
| 248-319 | Verizon | NORTHVILLE | – | yes | yes |
| 248-320 | Verizon | SOUTHFIELD | – | – | yes |
| 248-321 | Verizon | TROY | – | – | yes |
| 248-322 | AT&T | PONTIAC | – | – | yes |
| 248-323 | American Messaging | PONTIAC | – | – | yes |
| 248-324 | AT&T | FARMINGTON | – | yes | yes |
| 248-325 | AT&T | W BLOOMFLD | 2008-08-06 | yes | yes |
| 248-326 | Windstream | PONTIAC | – | yes | yes |
| 248-327 | AT&T | SOUTHFIELD | – | yes | yes |
| 248-328 | AT&T | HOLLY | – | yes | yes |
| 248-329 | CLEAR RATE COMMUNICATIONS, LLC | MILFDWH LK | – | yes | yes |
| 248-330 | Verizon | PONTIAC | – | – | yes |
| 248-331 | AT&T | SOUTHFIELD | – | yes | yes |
| 248-332 | AT&T | PONTIAC | – | – | yes |
| 248-333 | AT&T | PONTIAC | – | – | yes |
| 248-334 | AT&T | PONTIAC | – | – | yes |
| 248-335 | AT&T | PONTIAC | – | – | yes |
| 248-336 | AT&T | ROYAL OAK | – | – | yes |
| 248-338 | AT&T | PONTIAC | – | – | yes |
| 248-339 | AT&T | PONTIAC | – | yes | yes |
| 248-340 | AT&T | PONTIAC | – | yes | yes |
| 248-341 | Lumen | BIRMINGHAM | – | yes | yes |
| 248-342 | T-Mobile | PONTIAC | – | yes | yes |
| 248-343 | T-Mobile | PONTIAC | – | yes | yes |
| 248-344 | AT&T | NORTHVILLE | – | – | yes |
| 248-345 | AT&T | NORTHVILLE | – | – | yes |
| 248-346 | T-Mobile | W BLOOMFLD | – | – | yes |
| 248-347 | AT&T | NORTHVILLE | – | – | yes |
| 248-348 | AT&T | NORTHVILLE | – | – | yes |
| 248-349 | AT&T | NORTHVILLE | – | – | yes |
| 248-350 | AT&T | SOUTHFIELD | – | – | yes |
| 248-351 | AT&T | SOUTHFIELD | – | – | yes |
| 248-352 | AT&T | SOUTHFIELD | – | – | yes |
| 248-353 | AT&T | SOUTHFIELD | – | – | yes |
| 248-354 | AT&T | SOUTHFIELD | – | – | yes |
| 248-355 | AT&T | SOUTHFIELD | – | – | yes |
| 248-356 | AT&T | SOUTHFIELD | – | – | yes |
| 248-357 | AT&T | SOUTHFIELD | – | – | yes |
| 248-358 | AT&T | SOUTHFIELD | – | – | yes |
| 248-359 | AT&T | SOUTHFIELD | – | yes | yes |
| 248-360 | AT&T | COMMERCE | – | – | yes |
| 248-361 | T-Mobile | SOUTHFIELD | – | yes | yes |
| 248-362 | AT&T | TROY | – | – | yes |
| 248-363 | AT&T | COMMERCE | – | – | yes |
| 248-364 | AT&T | PONTIAC | – | – | yes |
| 248-365 | Verizon | PONTIAC | – | yes | yes |
| 248-366 | AT&T | COMMERCE | – | yes | yes |
| 248-367 | American Messaging | ROYAL OAK | – | – | yes |
| 248-368 | AT&T | SOUTHFIELD | – | yes | yes |
| 248-369 | Verizon | HOLLY | – | yes | yes |
| 248-370 | AT&T | PONTIAC | – | – | yes |
| 248-371 | AT&T | PONTIAC | – | – | yes |
| 248-372 | AT&T | SOUTHFIELD | – | yes | yes |
| 248-373 | AT&T | PONTIAC | – | – | yes |
| 248-374 | AT&T | NORTHVILLE | – | – | yes |
| 248-375 | AT&T | ROCHESTER | – | – | yes |
| 248-376 | AT&T | ROYAL OAK | – | yes | yes |
| 248-377 | AT&T | PONTIAC | – | – | yes |
| 248-378 | T-Mobile | NORTHVILLE | 2013-09-09 | yes | yes |
| 248-379 | T-Mobile | TROY | – | yes | yes |
| 248-380 | AT&T | NORTHVILLE | – | – | yes |
| 248-381 | Lumen | FARMINGTON | – | yes | yes |
| 248-382 | Lumen | HOLLY | – | yes | yes |
| 248-383 | Windstream | DRAYTON PL | – | yes | yes |
| 248-384 | Windstream | CLARKSTON | – | yes | yes |
| 248-385 | AT&T | BIRMINGHAM | 2013-12-18 | yes | yes |
| 248-386 | AT&T | SOUTHFIELD | – | yes | yes |
| 248-387 | Windstream | COMMERCE | – | yes | yes |
| 248-388 | T-Mobile | SOUTHFIELD | – | yes | yes |
| 248-389 | AT&T | SOUTHFIELD | 2021-04-22 | yes | yes |
| 248-390 | T-Mobile | PONTIAC | – | yes | yes |
| 248-391 | AT&T | PONTIAC | – | – | yes |
| 248-392 | T-Mobile | PONTIAC | 2011-06-08 | yes | yes |
| 248-393 | AT&T | PONTIAC | – | – | yes |
| 248-394 | AT&T | CLARKSTON | – | yes | yes |
| 248-395 | AT&T | SOUTHFIELD | – | yes | yes |
| 248-396 | T-Mobile | PONTIAC | – | yes | yes |
| 248-397 | Verizon | ROYAL OAK | – | yes | yes |
| 248-398 | AT&T | ROYAL OAK | – | – | yes |
| 248-399 | AT&T | ROYAL OAK | – | – | yes |
| 248-400 | American Messaging | SOUTHFIELD | – | – | yes |
| 248-401 | Spok | ROYAL OAK | – | – | yes |
| 248-402 | Windstream | ROCHESTER | – | yes | yes |
| 248-403 | T-Mobile | CLARKSTON | 2009-07-31 | yes | yes |
| 248-404 | AT&T | TROY | – | yes | yes |
| 248-405 | Spok | ROYAL OAK | – | – | yes |
| 248-406 | Windstream | W BLOOMFLD | – | yes | yes |
| 248-407 | American Messaging | AUBURN HTS | – | – | yes |
| 248-408 | Verizon | PONTIAC | – | – | yes |
| 248-409 | Windstream | PONTIAC | – | yes | yes |
| 248-410 | Verizon | PONTIAC | – | – | yes |
| 248-412 | Lumen | NORTHVILLE | – | yes | yes |
| 248-413 | Lumen | ROCHESTER | – | yes | yes |
| 248-414 | AT&T | ROYAL OAK | – | yes | yes |
| 248-415 | Verizon | SOUTHFIELD | – | – | yes |
| 248-416 | Verizon | SOUTHFIELD | – | yes | yes |
| 248-417 | Verizon | SOUTHFIELD | – | – | yes |
| 248-418 | Windstream | PONTIAC | – | yes | yes |
| 248-419 | Lumen | W BLOOMFLD | – | yes | yes |
| 248-420 | AT&T | PONTIAC | – | – | yes |
| 248-421 | AT&T | PONTIAC | – | – | yes |
| 248-422 | Windstream | TROY | – | yes | yes |
| 248-423 | AT&T | SOUTHFIELD | – | – | yes |
| 248-424 | AT&T | SOUTHFIELD | – | – | yes |
| 248-425 | AT&T | PONTIAC | – | – | yes |
| 248-426 | AT&T | FARMINGTON | – | – | yes |
| 248-427 | AT&T | FARMINGTON | – | – | yes |
| 248-428 | Windstream | MILFDWH LK | – | yes | yes |
| 248-429 | Windstream | OXFORD | – | yes | yes |
| 248-430 | Verizon | BIRMINGHAM | – | yes | yes |
| 248-431 | T-Mobile | PONTIAC | – | yes | yes |
| 248-432 | Lumen | W BLOOMFLD | – | yes | yes |
| 248-433 | AT&T | BIRMINGHAM | – | yes | yes |
| 248-434 | Lumen | TROY | – | yes | yes |
| 248-435 | AT&T | ROYAL OAK | – | – | yes |
| 248-436 | Lumen | SOUTHFIELD | – | yes | yes |
| 248-437 | AT&T | SOUTH LYON | – | – | yes |
| 248-438 | Lumen | WALLEDLAKE | – | yes | yes |
| 248-439 | WOW! INTERNET, CABLE AND PHONE | ROYAL OAK | 2007-07-17 | yes | yes |
| 248-440 | Windstream | SOUTHFIELD | – | yes | yes |
| 248-441 | American Messaging | AUBURN HTS | – | – | yes |
| 248-442 | AT&T | FARMINGTON | – | – | yes |
| 248-443 | AT&T | SOUTHFIELD | – | – | yes |
| 248-444 | Verizon | NORTHVILLE | 2001-01-25 | – | yes |
| 248-445 | AT&T | SOUTHFIELD | – | yes | yes |
| 248-446 | AT&T | SOUTH LYON | – | yes | yes |
| 248-447 | AT&T | SOUTHFIELD | – | – | yes |
| 248-448 | AT&T | SOUTHFIELD | – | yes | yes |
| 248-449 | AT&T | NORTHVILLE | – | – | yes |
| 248-450 | Comcast | SOUTHFIELD | – | yes | yes |
| 248-451 | AT&T | PONTIAC | – | – | yes |
| 248-452 | AT&T | PONTIAC | – | yes | yes |
| 248-453 | Verizon | ROCHESTER | – | yes | yes |
| 248-454 | AT&T | PONTIAC | – | – | yes |
| 248-455 | AT&T | SOUTHFIELD | – | yes | yes |
| 248-456 | AT&T | PONTIAC | – | – | yes |
| 248-457 | AT&T | TROY | – | yes | yes |
| 248-458 | AT&T | BIRMINGHAM | – | yes | yes |
| 248-459 | Verizon | HOLLY | – | – | yes |
| 248-460 | Verizon | OXFORD | – | yes | yes |
| 248-461 | Verizon | DRAYTON PL | – | yes | yes |
| 248-462 | AT&T | PONTIAC | – | yes | yes |
| 248-463 | AT&T | BIRMINGHAM | – | yes | yes |
| 248-464 | AT&T | PONTIAC | – | yes | yes |
| 248-465 | AT&T | NORTHVILLE | – | – | yes |
| 248-466 | Vonage | PONTIAC | 2016-08-15 | yes | yes |
| 248-467 | T-Mobile | HOLLY | – | yes | yes |
| 248-468 | Windstream | NORTHVILLE | – | yes | yes |
| 248-469 | CYNERGYCOMM.NET, INC. - MI | SOUTHFIELD | 2006-05-23 | yes | yes |
| 248-470 | T-Mobile | SOUTHFIELD | – | yes | yes |
| 248-471 | AT&T | FARMINGTON | – | – | yes |
| 248-472 | Comcast | MILFDWH LK | 2016-11-09 | yes | yes |
| 248-473 | AT&T | FARMINGTON | – | yes | yes |
| 248-474 | AT&T | FARMINGTON | – | – | yes |
| 248-475 | AT&T | PONTIAC | – | – | yes |
| 248-476 | AT&T | FARMINGTON | – | – | yes |
| 248-477 | AT&T | FARMINGTON | – | – | yes |
| 248-478 | AT&T | FARMINGTON | – | – | yes |
| 248-479 | Verizon | FARMINGTON | – | yes | yes |
| 248-480 | Comcast | BIRMINGHAM | 2014-06-27 | yes | yes |
| 248-481 | Comcast | PONTIAC | – | yes | yes |
| 248-482 | Verizon | FARMINGTON | – | yes | yes |
| 248-483 | AT&T | SOUTHFIELD | – | yes | yes |
| 248-484 | INTERACTIVE SERVICES NETWORK, INC. | PONTIAC | – | – | yes |
| 248-485 | INTERACTIVE SERVICES NETWORK, INC. | SOUTHFIELD | – | – | yes |
| 248-486 | AT&T | SOUTH LYON | – | – | yes |
| 248-487 | Windstream | W BLOOMFLD | – | yes | yes |
| 248-488 | AT&T | FARMINGTON | – | yes | yes |
| 248-489 | AT&T | FARMINGTON | – | yes | yes |
| 248-490 | AT&T | BIRMINGHAM | 2023-07-26 | yes | yes |
| 248-491 | Lumen | SOUTH LYON | – | yes | yes |
| 248-492 | Verizon | CLARKSTON | 2013-02-01 | yes | yes |
| 248-493 | INTERACTIVE SERVICES NETWORK, INC. | SOUTH LYON | 2002-04-02 | – | yes |
| 248-494 | AT&T | PONTIAC | – | yes | yes |
| 248-495 | T-Mobile | ROCHESTER | 2001-03-26 | yes | yes |
| 248-496 | Verizon | PONTIAC | – | – | yes |
| 248-497 | T-Mobile | SOUTHFIELD | 2001-12-28 | yes | yes |
| 248-498 | INTERACTIVE SERVICES NETWORK, INC. | TROY | – | – | yes |
| 248-499 | T-Mobile | PONTIAC | 2006-02-01 | yes | yes |
| 248-500 | AT&T | MILFDWH LK | 2016-04-20 | yes | yes |
| 248-501 | AT&T | SOUTHFIELD | – | – | yes |
| 248-502 | Verizon | BIRMINGHAM | – | – | yes |
| 248-503 | AT&T | SOUTHFIELD | – | – | yes |
| 248-504 | Lumen | NORTHVILLE | – | yes | yes |
| 248-505 | Verizon | PONTIAC | – | – | yes |
| 248-506 | T-Mobile | ROYAL OAK | – | yes | yes |
| 248-507 | Verizon | CLARKSTON | – | yes | yes |
| 248-508 | Verizon | SOUTHFIELD | – | yes | yes |
| 248-509 | Onvoy | TROY | – | yes | yes |
| 248-510 | Verizon | SOUTHFIELD | 2022-05-24 | yes | yes |
| 248-512 | AT&T | PONTIAC | – | – | yes |
| 248-513 | Verizon | NORTHVILLE | 2011-07-15 | yes | yes |
| 248-514 | Verizon | SOUTHFIELD | – | – | yes |
| 248-515 | Verizon | TROY | – | – | yes |
| 248-516 | AT&T | FARMINGTON | 2014-09-23 | yes | yes |
| 248-517 | AT&T | FARMINGTON | 2023-06-13 | yes | yes |
| 248-518 | Lumen | CLARKSTON | 2014-03-05 | yes | yes |
| 248-519 | Windstream | TROY | – | yes | yes |
| 248-520 | Verizon | PONTIAC | – | – | yes |
| 248-521 | T-Mobile | SOUTHFIELD | – | yes | yes |
| 248-522 | Lumen | FARMINGTON | – | yes | yes |
| 248-523 | American Messaging | FARMINGTON | – | – | yes |
| 248-524 | AT&T | TROY | – | – | yes |
| 248-525 | T-Mobile | TROY | 2009-04-29 | yes | yes |
| 248-526 | AT&T | TROY | – | – | yes |
| 248-527 | American Messaging | PONTIAC | – | – | yes |
| 248-528 | AT&T | TROY | – | yes | yes |
| 248-529 | AT&T | MILFDWH LK | – | yes | yes |
| 248-530 | Windstream | BIRMINGHAM | – | – | yes |
| 248-531 | Windstream | HOLLY | – | yes | yes |
| 248-532 | Verizon | ORTONVILLE | 2014-04-09 | yes | yes |
| 248-533 | Verizon | NORTHVILLE | – | yes | yes |
| 248-534 | Lumen | HOLLY | – | yes | yes |
| 248-535 | Verizon | PONTIAC | – | – | yes |
| 248-536 | Windstream | FARMINGTON | – | yes | yes |
| 248-537 | Windstream | AUBURN HTS | – | yes | yes |
| 248-538 | AT&T | W BLOOMFLD | – | – | yes |
| 248-539 | AT&T | W BLOOMFLD | – | – | yes |
| 248-540 | AT&T | BIRMINGHAM | – | – | yes |
| 248-541 | AT&T | ROYAL OAK | – | – | yes |
| 248-542 | AT&T | ROYAL OAK | – | – | yes |
| 248-543 | AT&T | ROYAL OAK | – | – | yes |
| 248-544 | AT&T | ROYAL OAK | – | – | yes |
| 248-545 | AT&T | ROYAL OAK | – | – | yes |
| 248-546 | AT&T | ROYAL OAK | – | – | yes |
| 248-547 | AT&T | ROYAL OAK | – | – | yes |
| 248-548 | AT&T | ROYAL OAK | – | – | yes |
| 248-549 | AT&T | ROYAL OAK | – | – | yes |
| 248-550 | AT&T | BIRMINGHAM | 2014-06-17 | yes | yes |
| 248-551 | AT&T | ROYAL OAK | – | – | yes |
| 248-552 | AT&T | SOUTHFIELD | – | – | yes |
| 248-553 | AT&T | FARMINGTON | – | – | yes |
| 248-554 | AT&T | ROYAL OAK | – | yes | yes |
| 248-556 | Windstream | ROYAL OAK | 2005-03-14 | yes | yes |
| 248-557 | AT&T | SOUTHFIELD | – | – | yes |
| 248-558 | T-Mobile | CLARKSTON | 2011-08-05 | yes | yes |
| 248-559 | AT&T | SOUTHFIELD | – | – | yes |
| 248-560 | Windstream | WALLEDLAKE | – | yes | yes |
| 248-561 | Verizon | TROY | – | – | yes |
| 248-562 | Lumen | W BLOOMFLD | – | yes | yes |
| 248-563 | Verizon | PONTIAC | – | – | yes |
| 248-564 | Verizon | AUBURN HTS | – | yes | yes |
| 248-565 | Lumen | ROYAL OAK | – | yes | yes |
| 248-566 | Lumen | BIRMINGHAM | – | yes | yes |
| 248-567 | Verizon | NORTHVILLE | – | yes | yes |
| 248-568 | Verizon | PONTIAC | – | – | yes |
| 248-569 | AT&T | SOUTHFIELD | – | – | yes |
| 248-570 | American Messaging | PONTIAC | – | – | yes |
| 248-571 | AT&T | ROYAL OAK | 2014-09-10 | yes | yes |
| 248-572 | AT&T | OXFORD | – | yes | yes |
| 248-573 | AT&T | SOUTH LYON | – | yes | yes |
| 248-574 | CLEAR RATE COMMUNICATIONS, LLC | WALLEDLAKE | 2007-08-23 | yes | yes |
| 248-575 | Verizon | CLARKSTON | – | yes | yes |
| 248-576 | AT&T | PONTIAC | – | – | yes |
| 248-577 | AT&T | ROYAL OAK | – | – | yes |
| 248-578 | Spok | NORTHVILLE | – | – | yes |
| 248-579 | Lumen | FARMINGTON | – | yes | yes |
| 248-580 | Spok | PONTIAC | – | – | yes |
| 248-581 | Verizon | ROYAL OAK | – | yes | yes |
| 248-582 | AT&T | ROYAL OAK | – | yes | yes |
| 248-583 | AT&T | ROYAL OAK | – | – | yes |
| 248-584 | AT&T | ROYAL OAK | – | – | yes |
| 248-585 | AT&T | ROYAL OAK | – | – | yes |
| 248-586 | AT&T | ROYAL OAK | – | yes | yes |
| 248-587 | Windstream | SOUTH LYON | – | yes | yes |
| 248-588 | AT&T | ROYAL OAK | – | – | yes |
| 248-589 | AT&T | ROYAL OAK | – | – | yes |
| 248-590 | AT&T | BIRMINGHAM | 2015-11-06 | yes | yes |
| 248-591 | AT&T | ROYAL OAK | – | yes | yes |
| 248-592 | AT&T | W BLOOMFLD | – | yes | yes |
| 248-593 | AT&T | BIRMINGHAM | – | – | yes |
| 248-594 | AT&T | BIRMINGHAM | – | – | yes |
| 248-595 | GRID 4 COMMUNICATIONS, INC. - MI | SOUTHFIELD | 2006-05-01 | yes | yes |
| 248-596 | AT&T | NORTHVILLE | – | – | yes |
| 248-597 | AT&T | ROYAL OAK | – | – | yes |
| 248-598 | Lumen | AUBURN HTS | – | yes | yes |
| 248-599 | AT&T | DRAYTON PL | 2005-11-16 | yes | yes |
| 248-600 | Onvoy | PONTIAC | 2015-08-17 | yes | yes |
| 248-601 | AT&T | ROCHESTER | – | – | yes |
| 248-602 | T-Mobile | TROY | 2011-05-16 | yes | yes |
| 248-603 | AT&T | SOUTHFIELD | – | – | yes |
| 248-604 | Spok | SOUTHFIELD | – | – | yes |
| 248-605 | Lumen | CLARKSTON | 2004-10-18 | yes | yes |
| 248-606 | AT&T | AUBURN HTS | 2001-12-28 | yes | yes |
| 248-607 | Lumen | ROYAL OAK | 2014-10-03 | yes | yes |
| 248-608 | AT&T | ROCHESTER | – | yes | yes |
| 248-609 | Windstream | ROCHESTER | – | yes | yes |
| 248-610 | Spok | PONTIAC | – | – | yes |
| 248-612 | American Messaging | HOLLY | – | – | yes |
| 248-613 | AT&T | PONTIAC | – | – | yes |
| 248-614 | AT&T | BIRMINGHAM | – | yes | yes |
| 248-615 | AT&T | FARMINGTON | – | – | yes |
| 248-616 | AT&T | ROYAL OAK | – | yes | yes |
| 248-617 | Comcast | SOUTH LYON | 2015-04-13 | yes | yes |
| 248-618 | AT&T | DRAYTON PL | – | yes | yes |
| 248-619 | AT&T | TROY | – | yes | yes |
| 248-620 | AT&T | CLARKSTON | – | – | yes |
| 248-621 | 123.NET, LLC | SOUTHFIELD | 2015-08-17 | yes | yes |
| 248-622 | AT&T | PONTIAC | – | yes | yes |
| 248-623 | AT&T | DRAYTON PL | – | – | yes |
| 248-624 | AT&T | WALLEDLAKE | – | – | yes |
| 248-625 | AT&T | CLARKSTON | – | – | yes |
| 248-626 | AT&T | W BLOOMFLD | – | – | yes |
| 248-627 | Frontier | ORTONVILLE | – | yes | yes |
| 248-628 | AT&T | OXFORD | – | – | yes |
| 248-629 | AT&T | ROYAL OAK | – | yes | yes |
| 248-630 | Lumen | PONTIAC | – | yes | yes |
| 248-631 | AT&T | BIRMINGHAM | – | yes | yes |
| 248-632 | T-Mobile | ROYAL OAK | – | yes | yes |
| 248-633 | 123.NET, LLC | BIRMINGHAM | – | yes | yes |
| 248-634 | AT&T | HOLLY | – | – | yes |
| 248-635 | T-Mobile | TROY | – | yes | yes |
| 248-636 | Lumen | PONTIAC | – | yes | yes |
| 248-637 | AT&T | BIRMINGHAM | – | – | yes |
| 248-638 | Verizon | MILFDWH LK | 2013-02-01 | yes | yes |
| 248-639 | Lumen | PONTIAC | 2011-08-08 | yes | yes |
| 248-640 | T-Mobile | SOUTHFIELD | – | yes | yes |
| 248-641 | AT&T | BIRMINGHAM | – | – | yes |
| 248-642 | AT&T | BIRMINGHAM | – | – | yes |
| 248-643 | AT&T | BIRMINGHAM | – | – | yes |
| 248-644 | AT&T | BIRMINGHAM | – | – | yes |
| 248-645 | AT&T | BIRMINGHAM | – | – | yes |
| 248-646 | AT&T | BIRMINGHAM | – | – | yes |
| 248-647 | AT&T | BIRMINGHAM | – | – | yes |
| 248-648 | AT&T | PONTIAC | – | yes | yes |
| 248-649 | AT&T | BIRMINGHAM | – | – | yes |
| 248-650 | AT&T | ROCHESTER | – | – | yes |
| 248-651 | AT&T | ROCHESTER | – | – | yes |
| 248-652 | AT&T | ROCHESTER | – | – | yes |
| 248-653 | T-Mobile | HOLLY | 2015-08-26 | yes | yes |
| 248-654 | Verizon | ROYAL OAK | – | yes | yes |
| 248-655 | AT&T | ROYAL OAK | – | yes | yes |
| 248-656 | AT&T | ROCHESTER | – | – | yes |
| 248-657 | GRID 4 COMMUNICATIONS, INC. - MI | CLARKSTON | 2014-09-04 | yes | yes |
| 248-658 | Windstream | ROYAL OAK | – | yes | yes |
| 248-659 | Verizon | ROCHESTER | – | yes | yes |
| 248-660 | Verizon | HOLLY | – | yes | yes |
| 248-661 | AT&T | W BLOOMFLD | – | – | yes |
| 248-662 | Windstream | NORTHVILLE | – | yes | yes |
| 248-663 | Windstream | SOUTHFIELD | – | – | yes |
| 248-664 | Verizon | MILFDWH LK | – | yes | yes |
| 248-665 | Windstream | SOUTHFIELD | – | yes | yes |
| 248-666 | AT&T | DRAYTON PL | – | – | yes |
| 248-667 | T-Mobile | SOUTH LYON | – | yes | yes |
| 248-668 | AT&T | WALLEDLAKE | – | – | yes |
| 248-669 | AT&T | WALLEDLAKE | – | – | yes |
| 248-670 | T-Mobile | TROY | – | yes | yes |
| 248-671 | Verizon | W BLOOMFLD | – | yes | yes |
| 248-672 | Verizon | PONTIAC | – | – | yes |
| 248-673 | AT&T | DRAYTON PL | – | – | yes |
| 248-674 | AT&T | DRAYTON PL | – | – | yes |
| 248-675 | AT&T | NORTHVILLE | – | yes | yes |
| 248-676 | Frontier | MILFDWH LK | – | – | yes |
| 248-677 | AT&T | ROYAL OAK | – | yes | yes |
| 248-678 | Windstream | AUBURN HTS | – | yes | yes |
| 248-679 | Lumen | NORTHVILLE | – | yes | yes |
| 248-680 | AT&T | TROY | – | – | yes |
| 248-681 | AT&T | PONTIAC | – | – | yes |
| 248-682 | AT&T | PONTIAC | – | – | yes |
| 248-683 | AT&T | PONTIAC | – | – | yes |
| 248-684 | Frontier | MILFDWH LK | – | – | yes |
| 248-685 | Frontier | MILFDWH LK | – | – | yes |
| 248-686 | Lumen | BIRMINGHAM | – | yes | yes |
| 248-687 | AT&T | TROY | – | yes | yes |
| 248-688 | AT&T | TROY | – | yes | yes |
| 248-689 | AT&T | TROY | – | – | yes |
| 248-690 | Windstream | LAKE ORION | – | yes | yes |
| 248-691 | AT&T | ROYAL OAK | – | yes | yes |
| 248-692 | Verizon | NORTHVILLE | – | yes | yes |
| 248-693 | AT&T | LAKE ORION | – | – | yes |
| 248-694 | Verizon | COMMERCE | – | yes | yes |
| 248-695 | INTERACTIVE SERVICES NETWORK, INC. | BIRMINGHAM | – | – | yes |
| 248-696 | AT&T | BIRMINGHAM | – | – | yes |
| 248-697 | Verizon | NORTHVILLE | – | yes | yes |
| 248-698 | AT&T | COMMERCE | – | yes | yes |
| 248-699 | AT&T | FARMINGTON | – | yes | yes |
| 248-701 | AT&T | PONTIAC | – | – | yes |
| 248-702 | Verizon | W BLOOMFLD | – | yes | yes |
| 248-703 | T-Mobile | TROY | – | yes | yes |
| 248-704 | Verizon | NORTHVILLE | 2014-10-09 | yes | yes |
| 248-705 | AT&T | PONTIAC | – | – | yes |
| 248-706 | AT&T | PONTIAC | – | yes | yes |
| 248-707 | T-Mobile | CLARKSTON | 2005-07-14 | yes | yes |
| 248-708 | INTERACTIVE SERVICES NETWORK, INC. | HOLLY | – | – | yes |
| 248-709 | Verizon | TROY | – | – | yes |
| 248-710 | GRID 4 COMMUNICATIONS, INC. - MI | ROCHESTER | 2015-02-25 | yes | yes |
| 248-712 | Verizon | BIRMINGHAM | – | yes | yes |
| 248-713 | AT&T | ORTONVILLE | – | yes | yes |
| 248-714 | Verizon | MILFDWH LK | 2005-09-22 | yes | yes |
| 248-715 | INTERACTIVE SERVICES NETWORK, INC. | FARMINGTON | – | – | yes |
| 248-716 | Bandwidth | COMMERCE | 2010-02-16 | yes | yes |
| 248-717 | Bandwidth | MILFDWH LK | 2014-05-09 | yes | yes |
| 248-718 | Verizon | ORTONVILLE | 2013-02-01 | yes | yes |
| 248-719 | AT&T | NORTHVILLE | – | yes | yes |
| 248-720 | Windstream | TROY | – | yes | yes |
| 248-721 | Lumen | ROYAL OAK | – | yes | yes |
| 248-722 | T-Mobile | W BLOOMFLD | – | – | yes |
| 248-723 | AT&T | BIRMINGHAM | – | – | yes |
| 248-724 | 123.NET, LLC | PONTIAC | 2001-10-01 | yes | yes |
| 248-725 | American Messaging | PONTIAC | – | – | yes |
| 248-726 | Lumen | ROCHESTER | – | yes | yes |
| 248-727 | Verizon | SOUTHFIELD | – | yes | yes |
| 248-728 | Verizon | SOUTHFIELD | – | yes | yes |
| 248-729 | Verizon | TROY | – | yes | yes |
| 248-730 | T-Mobile | W BLOOMFLD | – | – | yes |
| 248-731 | Lumen | BIRMINGHAM | 2002-05-08 | yes | yes |
| 248-732 | AT&T | PONTIAC | – | yes | yes |
| 248-733 | AT&T | ROYAL OAK | – | yes | yes |
| 248-734 | AT&T | BIRMINGHAM | 2023-09-25 | yes | yes |
| 248-735 | AT&T | NORTHVILLE | – | – | yes |
| 248-736 | AT&T | PONTIAC | – | – | yes |
| 248-737 | AT&T | W BLOOMFLD | – | – | yes |
| 248-738 | AT&T | PONTIAC | – | – | yes |
| 248-739 | T-Mobile | W BLOOMFLD | 2001-10-01 | yes | yes |
| 248-740 | AT&T | TROY | – | – | yes |
| 248-741 | INTERACTIVE SERVICES NETWORK, INC. | FARMINGTON | – | – | yes |
| 248-742 | Lumen | DRAYTON PL | – | yes | yes |
| 248-743 | AT&T | TROY | – | yes | yes |
| 248-744 | Verizon | ROYAL OAK | – | yes | yes |
| 248-745 | AT&T | PONTIAC | – | – | yes |
| 248-746 | AT&T | SOUTHFIELD | – | – | yes |
| 248-747 | T-Mobile | W BLOOMFLD | – | yes | yes |
| 248-748 | Verizon | MILFDWH LK | – | yes | yes |
| 248-749 | AT&T | PONTIAC | 2023-10-12 | yes | yes |
| 248-750 | Verizon | SOUTHFIELD | – | yes | yes |
| 248-751 | INTERACTIVE SERVICES NETWORK, INC. | PONTIAC | – | – | yes |
| 248-752 | Verizon | SOUTHFIELD | 2001-01-25 | – | yes |
| 248-753 | AT&T | PONTIAC | – | – | yes |
| 248-754 | AT&T | PONTIAC | – | – | yes |
| 248-755 | T-Mobile | FARMINGTON | – | yes | yes |
| 248-756 | Verizon | NORTHVILLE | 2001-08-27 | – | yes |
| 248-757 | Comcast | W BLOOMFLD | – | yes | yes |
| 248-758 | AT&T | PONTIAC | 2001-05-24 | yes | yes |
| 248-759 | T-Mobile | ROCHESTER | 2009-11-05 | yes | yes |
| 248-760 | AT&T | PONTIAC | – | – | yes |
| 248-761 | AT&T | ROYAL OAK | – | – | yes |
| 248-762 | Verizon | PONTIAC | – | – | yes |
| 248-763 | Verizon | SOUTHFIELD | – | – | yes |
| 248-764 | Verizon | TROY | – | yes | yes |
| 248-765 | Verizon | TROY | – | – | yes |
| 248-766 | AT&T | PONTIAC | – | – | yes |
| 248-767 | T-Mobile | NORTHVILLE | – | yes | yes |
| 248-768 | T-Mobile | W BLOOMFLD | 2015-05-13 | yes | yes |
| 248-769 | INTERACTIVE SERVICES NETWORK, INC. | MILFDWH LK | – | – | yes |
| 248-770 | Verizon | PONTIAC | – | – | yes |
| 248-771 | Bandwidth | PONTIAC | – | – | yes |
| 248-772 | AT&T | FARMINGTON | – | yes | yes |
| 248-773 | Windstream | NORTHVILLE | 2005-05-31 | yes | yes |
| 248-774 | CLEAR RATE COMMUNICATIONS, LLC | SOUTHFIELD | – | – | yes |
| 248-775 | AT&T | MILFDWH LK | 2015-03-18 | yes | yes |
| 248-776 | 123.NET, LLC | ROYAL OAK | – | – | yes |
| 248-777 | AT&T | DETROITZN5 | – | yes | yes |
| 248-778 | Lumen | CLARKSTON | – | yes | yes |
| 248-779 | Lumen | COMMERCE | – | yes | yes |
| 248-780 | Onvoy | HOLLY | – | yes | yes |
| 248-781 | Lumen | TROY | 2015-06-17 | yes | yes |
| 248-782 | Lumen | SOUTH LYON | – | yes | yes |
| 248-783 | Lumen | LAKE ORION | – | yes | yes |
| 248-784 | Verizon | SOUTHFIELD | – | yes | yes |
| 248-785 | Verizon | W BLOOMFLD | – | yes | yes |
| 248-786 | Verizon | TROY | – | yes | yes |
| 248-787 | T-Mobile | WALLEDLAKE | – | yes | yes |
| 248-788 | AT&T | W BLOOMFLD | – | yes | yes |
| 248-789 | T-Mobile | SOUTHFIELD | – | yes | yes |
| 248-790 | T-Mobile | W BLOOMFLD | – | – | yes |
| 248-791 | Verizon | PONTIAC | 2014-11-10 | yes | yes |
| 248-792 | Comcast | BIRMINGHAM | – | yes | yes |
| 248-793 | 123.NET, LLC | ORTONVILLE | 2005-07-06 | yes | yes |
| 248-794 | Onvoy | SOUTHFIELD | 2004-07-09 | yes | yes |
| 248-795 | T-Mobile | CLARKSTON | 2010-04-02 | yes | yes |
| 248-796 | Lumen | SOUTHFIELD | – | yes | yes |
| 248-797 | AT&T | ROYAL OAK | – | – | yes |
| 248-798 | Verizon | SOUTHFIELD | – | – | yes |
| 248-799 | AT&T | SOUTHFIELD | – | yes | yes |
| 248-800 | Onvoy | OXFORD | 2015-04-01 | yes | yes |
| 248-801 | Onvoy | W BLOOMFLD | – | yes | yes |
| 248-802 | T-Mobile | CLARKSTON | – | – | yes |
| 248-803 | Bandwidth | ORTONVILLE | 2011-03-18 | yes | yes |
| 248-804 | Verizon | PONTIAC | – | – | yes |
| 248-805 | FIRST COMMUNICATIONS, LLC | ROCHESTER | 2008-02-07 | yes | yes |
| 248-806 | American Messaging | PONTIAC | – | – | yes |
| 248-807 | Verizon | HOLLY | 2001-10-01 | – | yes |
| 248-808 | AT&T | ROYAL OAK | 2001-06-28 | yes | yes |
| 248-809 | Comcast | SOUTHFIELD | – | yes | yes |
| 248-810 | Onvoy | ROYAL OAK | 2023-07-26 | yes | yes |
| 248-812 | T-Mobile | PONTIAC | 2008-10-02 | yes | yes |
| 248-813 | AT&T | TROY | – | yes | yes |
| 248-814 | AT&T | LAKE ORION | – | yes | yes |
| 248-815 | American Messaging | PONTIAC | – | – | yes |
| 248-816 | AT&T | BIRMINGHAM | – | – | yes |
| 248-817 | Comcast | TROY | 2011-08-12 | yes | yes |
| 248-818 | AT&T | PONTIAC | – | yes | yes |
| 248-819 | T-Mobile | W BLOOMFLD | – | yes | yes |
| 248-820 | Verizon | HOLLY | – | yes | yes |
| 248-821 | AT&T | PONTIAC | – | – | yes |
| 248-822 | AT&T | BIRMINGHAM | – | – | yes |
| 248-823 | Lumen | TROY | – | yes | yes |
| 248-824 | AT&T | TROY | – | yes | yes |
| 248-825 | T-Mobile | TROY | 2010-05-14 | yes | yes |
| 248-826 | Verizon | NORTHVILLE | 2011-09-28 | yes | yes |
| 248-827 | AT&T | SOUTHFIELD | – | yes | yes |
| 248-828 | AT&T | TROY | – | yes | yes |
| 248-829 | AT&T | AUBURN HTS | – | yes | yes |
| 248-830 | T-Mobile | PONTIAC | 2001-05-24 | yes | yes |
| 248-831 | Verizon | ORTONVILLE | 2013-02-01 | yes | yes |
| 248-832 | T-Mobile | NORTHVILLE | 2016-11-23 | yes | yes |
| 248-833 | Verizon | BIRMINGHAM | – | yes | yes |
| 248-834 | Lumen | LAKE ORION | – | yes | yes |
| 248-835 | T-Mobile | TROY | 2002-05-08 | yes | yes |
| 248-836 | AT&T | PONTIAC | – | yes | yes |
| 248-837 | AT&T | ROYAL OAK | – | yes | yes |
| 248-838 | AT&T | PONTIAC | – | yes | yes |
| 248-839 | AT&T | BIRMINGHAM | 2015-03-27 | yes | yes |
| 248-840 | Verizon | TROY | 2001-01-25 | – | yes |
| 248-841 | AT&T | ROCHESTER | – | yes | yes |
| 248-842 | T-Mobile | PONTIAC | – | yes | yes |
| 248-843 | T-Mobile | CLARKSTON | 2015-06-16 | yes | yes |
| 248-844 | AT&T | AUBURN HTS | – | – | yes |
| 248-845 | AT&T | LAKE ORION | – | yes | yes |
| 248-846 | Lumen | HOLLY | – | yes | yes |
| 248-847 | T-Mobile | W BLOOMFLD | 2015-05-14 | yes | yes |
| 248-848 | AT&T | FARMINGTON | – | – | yes |
| 248-849 | AT&T | SOUTHFIELD | 2001-05-02 | yes | yes |
| 248-850 | AT&T | ROYAL OAK | 2006-02-28 | yes | yes |
| 248-851 | AT&T | W BLOOMFLD | – | – | yes |
| 248-852 | AT&T | AUBURN HTS | – | – | yes |
| 248-853 | AT&T | AUBURN HTS | – | – | yes |
| 248-854 | T-Mobile | TROY | 2001-03-26 | – | yes |
| 248-855 | AT&T | W BLOOMFLD | – | – | yes |
| 248-856 | Verizon | AUBURN HTS | 2002-03-12 | yes | yes |
| 248-857 | AT&T | PONTIAC | – | – | yes |
| 248-858 | AT&T | PONTIAC | – | – | yes |
| 248-859 | BHN IP ENABLED SERVICES, LLC | WALLEDLAKE | 2007-09-04 | yes | yes |
| 248-860 | Verizon | PONTIAC | 2002-09-17 | – | yes |
| 248-861 | T-Mobile | CLARKSTON | 2016-08-18 | yes | yes |
| 248-862 | AT&T | W BLOOMFLD | – | yes | yes |
| 248-863 | AT&T | WALLEDLAKE | – | yes | yes |
| 248-864 | Lumen | SOUTHFIELD | 2001-08-27 | yes | yes |
| 248-865 | AT&T | W BLOOMFLD | – | – | yes |
| 248-866 | T-Mobile | SOUTHFIELD | – | yes | yes |
| 248-867 | T-Mobile | SOUTHFIELD | – | yes | yes |
| 248-868 | Spok | SOUTHFIELD | – | – | yes |
| 248-869 | INTERACTIVE SERVICES NETWORK, INC. | NORTHVILLE | 2001-02-28 | – | yes |
| 248-870 | T-Mobile | NORTHVILLE | 2019-06-20 | yes | yes |
| 248-871 | Windstream | FARMINGTON | – | yes | yes |
| 248-872 | T-Mobile | PONTIAC | – | yes | yes |
| 248-873 | AT&T | FARMINGTON | 2019-06-27 | yes | yes |
| 248-874 | AT&T | PONTIAC | – | yes | yes |
| 248-875 | T-Mobile | PONTIAC | – | yes | yes |
| 248-876 | Lumen | FARMINGTON | – | yes | yes |
| 248-877 | AT&T | PONTIAC | – | – | yes |
| 248-878 | Verizon | TROY | 2011-08-08 | yes | yes |
| 248-879 | AT&T | TROY | – | – | yes |
| 248-880 | Verizon | NORTHVILLE | 2002-03-12 | – | yes |
| 248-881 | AT&T | PONTIAC | – | yes | yes |
| 248-882 | AT&T | PONTIAC | – | – | yes |
| 248-883 | Lumen | PONTIAC | – | yes | yes |
| 248-884 | AT&T | PONTIAC | – | – | yes |
| 248-885 | AT&T | BIRMINGHAM | 2001-07-27 | yes | yes |
| 248-886 | AT&T | DRAYTON PL | – | yes | yes |
| 248-887 | Frontier | MILFDWH LK | – | – | yes |
| 248-888 | AT&T | FARMINGTON | – | yes | yes |
| 248-889 | Frontier | MILFDWH LK | – | – | yes |
| 248-890 | AT&T | ROYAL OAK | – | – | yes |
| 248-891 | Verizon | PONTIAC | – | – | yes |
| 248-892 | AT&T | PONTIAC | – | – | yes |
| 248-893 | Verizon | FARMINGTON | – | yes | yes |
| 248-894 | T-Mobile | PONTIAC | – | yes | yes |
| 248-895 | T-Mobile | PONTIAC | – | yes | yes |
| 248-896 | Lumen | WALLEDLAKE | – | yes | yes |
| 248-897 | Bandwidth | PONTIAC | 2015-07-21 | yes | yes |
| 248-898 | AT&T | ROYAL OAK | – | – | yes |
| 248-899 | INTERACTIVE SERVICES NETWORK, INC. | ORTONVILLE | 2002-04-02 | – | yes |
| 248-900 | Onvoy | ORTONVILLE | 2016-11-30 | yes | yes |
| 248-901 | AT&T | BIRMINGHAM | – | yes | yes |
| 248-902 | AT&T | SOUTHFIELD | – | – | yes |
| 248-903 | AT&T | SOUTHFIELD | – | – | yes |
| 248-904 | Verizon | PONTIAC | 2001-06-28 | yes | yes |
| 248-905 | AT&T | SOUTHFIELD | – | yes | yes |
| 248-906 | T-Mobile | TROY | 2008-10-08 | yes | yes |
| 248-907 | Bandwidth | FARMINGTON | 2016-06-28 | yes | yes |
| 248-908 | Spok | PONTIAC | – | – | yes |
| 248-909 | AT&T | PONTIAC | – | – | yes |
| 248-910 | T-Mobile | SOUTHFIELD | – | yes | yes |
| 248-912 | Verizon | NORTHVILLE | – | yes | yes |
| 248-913 | INTERACTIVE SERVICES NETWORK, INC. | CLARKSTON | 2002-04-02 | – | yes |
| 248-914 | Verizon | SOUTHFIELD | – | – | yes |
| 248-915 | Verizon | SOUTHFIELD | – | – | yes |
| 248-916 | AT&T | NORTHVILLE | – | yes | yes |
| 248-917 | T-Mobile | PONTIAC | – | yes | yes |
| 248-918 | Lumen | TROY | 2001-10-01 | yes | yes |
| 248-919 | Onvoy | FARMINGTON | – | yes | yes |
| 248-920 | Verizon | PONTIAC | – | yes | yes |
| 248-921 | Verizon | NORTHVILLE | – | – | yes |
| 248-922 | AT&T | CLARKSTON | – | yes | yes |
| 248-923 | Lumen | ROCHESTER | 2013-01-31 | yes | yes |
| 248-924 | Comcast | NORTHVILLE | – | yes | yes |
| 248-925 | AT&T | TROY | – | yes | yes |
| 248-926 | AT&T | WALLEDLAKE | – | – | yes |
| 248-927 | Verizon | CLARKSTON | – | yes | yes |
| 248-928 | Verizon | TROY | – | yes | yes |
| 248-929 | Lumen | LAKE ORION | 2001-12-28 | yes | yes |
| 248-930 | Verizon | TROY | 2002-05-23 | – | yes |
| 248-931 | AT&T | PONTIAC | – | – | yes |
| 248-932 | AT&T | W BLOOMFLD | – | – | yes |
| 248-933 | AT&T | PONTIAC | – | – | yes |
| 248-934 | AT&T | PONTIAC | 2016-06-30 | yes | yes |
| 248-935 | T-Mobile | PONTIAC | – | yes | yes |
| 248-936 | Verizon | SOUTHFIELD | – | – | yes |
| 248-937 | Lumen | COMMERCE | – | yes | yes |
| 248-938 | Verizon | NORTHVILLE | 2015-06-17 | yes | yes |
| 248-939 | T-Mobile | FARMINGTON | 2001-03-26 | yes | yes |
| 248-940 | AT&T | BIRMINGHAM | 2016-10-25 | yes | yes |
| 248-941 | WOW! INTERNET, CABLE AND PHONE | ROCHESTER | 2001-06-28 | yes | yes |
| 248-942 | Lumen | CLARKSTON | – | yes | yes |
| 248-943 | T-Mobile | SOUTHFIELD | 2001-11-01 | yes | yes |
| 248-944 | AT&T | PONTIAC | – | – | yes |
| 248-945 | AT&T | SOUTHFIELD | – | yes | yes |
| 248-946 | WOW! INTERNET, CABLE AND PHONE | NORTHVILLE | 2001-02-28 | yes | yes |
| 248-947 | AT&T | FARMINGTON | 2023-12-15 | yes | yes |
| 248-948 | AT&T | SOUTHFIELD | – | – | yes |
| 248-949 | AT&T | FARMINGTON | 2015-09-02 | yes | yes |
| 248-951 | Onvoy | ROYAL OAK | 2015-09-04 | yes | yes |
| 248-952 | AT&T | BIRMINGHAM | – | yes | yes |
| 248-953 | Verizon | TROY | 2002-09-17 | – | yes |
| 248-954 | AT&T | FARMINGTON | 2016-11-03 | yes | yes |
| 248-955 | Windstream | ROYAL OAK | – | yes | yes |
| 248-956 | Windstream | WALLEDLAKE | – | yes | yes |
| 248-957 | Verizon | FARMINGTON | – | yes | yes |
| 248-960 | AT&T | WALLEDLAKE | – | – | yes |
| 248-961 | AT&T | PONTIAC | – | yes | yes |
| 248-962 | Windstream | NORTHVILLE | – | yes | yes |
| 248-963 | Bandwidth | ROCHESTER | 2016-07-25 | yes | yes |
| 248-964 | AT&T | TROY | – | – | yes |
| 248-965 | Comcast | ROYAL OAK | 2015-08-20 | yes | yes |
| 248-966 | Spok | SOUTHFIELD | – | – | yes |
| 248-967 | AT&T | ROYAL OAK | – | – | yes |
| 248-968 | AT&T | ROYAL OAK | – | – | yes |
| 248-969 | AT&T | OXFORD | – | – | yes |
| 248-970 | CLEAR RATE COMMUNICATIONS, LLC | W BLOOMFLD | 2016-12-23 | yes | yes |
| 248-971 | Verizon | BIRMINGHAM | 2001-05-24 | yes | yes |
| 248-972 | AT&T | PONTIAC | – | yes | yes |
| 248-973 | Verizon | W BLOOMFLD | – | yes | yes |
| 248-974 | T-Mobile | NORTHVILLE | 2002-03-12 | yes | yes |
| 248-975 | AT&T | PONTIAC | – | yes | yes |
| 248-977 | AT&T | PONTIAC | – | yes | yes |
| 248-978 | WOW! INTERNET, CABLE AND PHONE | PONTIAC | – | yes | yes |
| 248-979 | T-Mobile | BIRMINGHAM | 2001-08-27 | yes | yes |
| 248-980 | T-Mobile | PONTIAC | – | yes | yes |
| 248-981 | T-Mobile | PONTIAC | – | yes | yes |
| 248-982 | T-Mobile | NORTHVILLE | – | – | yes |
| 248-983 | Onvoy | HOLLY | 2016-06-30 | yes | yes |
| 248-984 | AT&T | FARMINGTON | 2023-08-03 | yes | yes |
| 248-985 | Verizon | W BLOOMFLD | – | yes | yes |
| 248-986 | AT&T | FARMINGTON | 2014-09-10 | yes | yes |
| 248-987 | AT&T | FARMINGTON | – | yes | yes |
| 248-988 | AT&T | BIRMINGHAM | – | yes | yes |
| 248-989 | Verizon | TROY | – | yes | yes |
| 248-990 | AT&T | ROYAL OAK | 2002-03-12 | – | yes |
| 248-991 | Verizon | FARMINGTON | – | yes | yes |
| 248-992 | American Messaging | ROYAL OAK | – | – | yes |
| 248-993 | T-Mobile | NORTHVILLE | 2016-08-17 | yes | yes |
| 248-994 | AT&T | FARMINGTON | – | yes | yes |
| 248-995 | American Messaging | ROYAL OAK | 2004-07-21 | – | yes |
| 248-996 | Verizon | SOUTHFIELD | – | yes | yes |
| 248-997 | Lumen | AUBURN HTS | – | yes | yes |
| 248-998 | American Messaging | ROYAL OAK | – | – | yes |
Frequently asked
How many prefixes does area code 248 have?
784 NXX blocks are assigned of 786 possible. Each block is 10,000 consecutive numbers, so the code currently covers about 7,840 thousand-number ranges across 21 rate centers.
What do the first three digits after 248 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 248 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 248 table?
That the block is in thousands-block pooling: carriers draw 1,000-number lots from it instead of taking all 10,000. 473 of 248'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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