Verified Nov 1, 2026 · Source: NANPA CO Code Assignment Records
Area code 414 prefixes
552 of the 786 possible NXX blocks are assigned in area code 414 (70.2% of capacity), spread across 4 rate centers and 31 holders. The largest holders are WISCONSIN BELL INC (189 blocks, 34.2%), T-MOBILE USA, INC. (54 blocks, 9.8%), NEW CINGULAR WIRELESS PCS, LLC - IL (51 blocks, 9.2%). Grouped by brand, AT&T accounts for 260 blocks; brand-attributable holders cover 88% 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 2001-02-02 to 2026-08-21, with 28 blocks handed out in 2025 alone. 340 blocks (62%) 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. 1 assigned block (523) is not yet in service: assigned to a carrier but not open for calls, so a caller ID from one is spoofed. 149 were growth assignments – additional blocks to a carrier that had already filled its earlier ones.
552 assigned blocks of 786
4 rate centers
31 holders of record
62% in thousands-block pooling
Largest holders in 414
| Holder of record, as NANPA names it | Brand | Blocks | Share |
|---|---|---|---|
| WISCONSIN BELL INC | AT&T | 189 | 34.2% |
| T-MOBILE USA, INC. | T-Mobile | 54 | 9.8% |
| NEW CINGULAR WIRELESS PCS, LLC - IL | AT&T | 51 | 9.2% |
| UNITED STATES CELLULAR - WI | – | 47 | 8.5% |
| ONVOY, LLC - WI | Onvoy | 31 | 5.6% |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI | Verizon | 25 | 4.5% |
| SPOK, INC. | Spok | 18 | 3.3% |
| TELEPORT COMMUNICATIONS AMERICA, LLC WI | AT&T | 18 | 3.3% |
| LEVEL 3 COMMUNICATIONS, LLC - WI | Lumen | 14 | 2.5% |
| PAETEC ITEL, LLC | Windstream | 13 | 2.4% |
| METROPCS, INC. | T-Mobile | 11 | 2% |
| AMERICAN MESSAGING SERVICES, LLC | American Messaging | 11 | 2% |
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.
All 552 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 |
|---|---|---|---|---|---|
| 414-200 | Charter | MILWAUKZN1 | 2022-09-26 | yes | yes |
| 414-201 | Spok | MILWAUKZN1 | – | – | yes |
| 414-202 | T-Mobile | MILWAUKZN1 | – | yes | yes |
| 414-203 | Verizon | MILWAUKZN1 | – | – | yes |
| 414-204 | NUSO, LLC | MILWAUKZN1 | 2013-03-08 | yes | yes |
| 414-205 | Spok | MILWAUKZN1 | – | – | yes |
| 414-206 | T-Mobile | MILWAUKZN4 | 2015-05-22 | yes | yes |
| 414-207 | Verizon | MILWAUKZN1 | – | yes | yes |
| 414-208 | Verizon | MILWAUKZN1 | 2005-12-08 | yes | yes |
| 414-209 | Verizon | MILWAUKZN3 | – | yes | yes |
| 414-210 | T-Mobile | MILWAUKZN1 | 2015-02-05 | yes | yes |
| 414-212 | AT&T | MILWAUKZN1 | – | yes | yes |
| 414-213 | T-Mobile | MILWAUKZN1 | – | yes | yes |
| 414-214 | Verizon | MILWAUKZN4 | – | yes | yes |
| 414-215 | AT&T | MILWAUKZN5 | 2006-01-13 | yes | yes |
| 414-216 | Verizon | MILWAUKZN5 | – | yes | yes |
| 414-217 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-218 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-219 | AT&T | MILWAUKZN1 | – | yes | yes |
| 414-220 | AT&T | MILWAUKZN1 | – | yes | yes |
| 414-221 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-222 | Spok | MILWAUKZN1 | – | – | yes |
| 414-223 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-224 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-225 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-226 | AT&T | MILWAUKZN1 | – | yes | yes |
| 414-227 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-228 | AT&T | MILWAUKZN4 | – | – | yes |
| 414-229 | AT&T | MILWAUKZN1 | – | yes | yes |
| 414-230 | Spok | MILWAUKZN1 | – | – | yes |
| 414-231 | AT&T | MILWAUKZN1 | – | yes | yes |
| 414-232 | Verizon | MILWAUKZN1 | – | – | yes |
| 414-233 | T-Mobile | MILWAUKZN1 | 2011-01-31 | yes | yes |
| 414-234 | T-Mobile | MILWAUKZN5 | 2002-04-02 | yes | yes |
| 414-235 | T-Mobile | MILWAUKZN3 | 2002-04-02 | yes | yes |
| 414-236 | T-Mobile | MILWAUKZN4 | 2002-04-02 | yes | yes |
| 414-237 | Spok | MILWAUKZN1 | – | – | yes |
| 414-238 | Onvoy | MILWAUKZN1 | – | yes | yes |
| 414-239 | Verizon | MILWAUKZN1 | 2011-01-25 | yes | yes |
| 414-240 | Onvoy | MILWAUKZN1 | 2015-11-20 | yes | yes |
| 414-241 | T-Mobile | MILWAUKZN5 | – | – | yes |
| 414-242 | Verizon | MILWAUKZN1 | 2012-07-31 | yes | yes |
| 414-243 | T-Mobile | MILWAUKZN1 | 2003-01-22 | yes | yes |
| 414-244 | AT&T | MILWAUKZN1 | – | yes | yes |
| 414-245 | AT&T | MILWAUKZN1 | 2008-05-06 | yes | yes |
| 414-246 | Onvoy | MILWAUKZN3 | 2015-12-24 | yes | yes |
| 414-247 | AT&T | MILWAUKZN4 | – | – | yes |
| 414-248 | AT&T | MILWAUKZN1 | 2002-06-20 | yes | yes |
| 414-249 | T-Mobile | MILWAUKZN1 | 2013-09-20 | yes | yes |
| 414-250 | AT&T | MILWAUKZN1 | 2020-01-13 | yes | yes |
| 414-251 | AT&T | MILWAUKZN1 | 2020-03-09 | yes | yes |
| 414-252 | AT&T | MILWAUKZN1 | 2016-08-12 | yes | yes |
| 414-253 | Bandwidth | MILWAUKZN1 | 2017-01-31 | yes | yes |
| 414-254 | UNITED STATES CELLULAR - WI | MILWAUKZN1 | – | yes | yes |
| 414-255 | Windstream | MILWAUKZN1 | 2008-06-23 | yes | yes |
| 414-256 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-257 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-258 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-259 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-260 | NUSO, LLC | MILWAUKZN1 | 2020-05-21 | yes | yes |
| 414-261 | HD CARRIER LLC | MILWAUKZN1 | 2020-10-02 | yes | yes |
| 414-262 | T-Mobile | MILWAUKZN4 | 2023-08-28 | yes | yes |
| 414-263 | AT&T | MILWAUKZN1 | – | yes | yes |
| 414-264 | AT&T | MILWAUKZN1 | – | yes | yes |
| 414-265 | AT&T | MILWAUKZN1 | – | yes | yes |
| 414-266 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-267 | AT&T | MILWAUKZN1 | – | yes | yes |
| 414-268 | Vonage | MILWAUKZN3 | 2021-06-24 | yes | yes |
| 414-269 | Lumen | MILWAUKZN1 | 2005-05-31 | yes | yes |
| 414-270 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-271 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-272 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-273 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-274 | AT&T | MILWAUKZN1 | – | yes | yes |
| 414-275 | T-Mobile | MILWAUKZN1 | 2015-08-13 | yes | yes |
| 414-276 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-277 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-278 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-279 | IP HORIZON LLC | MILWAUKZN1 | 2021-05-03 | yes | yes |
| 414-280 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-281 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-282 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-283 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-284 | STRATUS NETWORKS | MILWAUKZN4 | 2020-11-19 | yes | yes |
| 414-285 | Verizon | MILWAUKZN1 | 2020-10-15 | yes | yes |
| 414-286 | AT&T | MILWAUKZN1 | – | yes | yes |
| 414-287 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-288 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-289 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-290 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-291 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-292 | TDS | MILWAUKZN1 | 2006-02-14 | yes | yes |
| 414-293 | Bandwidth | MILWAUKZN1 | 2021-06-11 | yes | yes |
| 414-294 | AT&T | MILWAUKZN1 | – | yes | yes |
| 414-295 | T-Mobile | MILWAUKZN5 | – | yes | yes |
| 414-296 | Onvoy | MILWAUKZN1 | 2019-03-27 | yes | yes |
| 414-297 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-298 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-299 | AT&T | MILWAUKZN1 | – | yes | yes |
| 414-300 | Charter | MILWAUKZN1 | 2023-07-19 | yes | yes |
| 414-301 | Lumen | MILWAUKZN5 | 2005-12-08 | yes | yes |
| 414-302 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-303 | UNITED STATES CELLULAR - WI | MILWAUKZN1 | – | yes | yes |
| 414-304 | AT&T | MILWAUKZN5 | – | yes | yes |
| 414-305 | Verizon | MILWAUKZN1 | – | – | yes |
| 414-306 | AT&T | MILWAUKZN3 | 2006-02-17 | yes | yes |
| 414-307 | Lumen | MILWAUKZN1 | 2022-02-24 | yes | yes |
| 414-308 | Windstream | MILWAUKZN1 | 2008-12-30 | yes | yes |
| 414-309 | Verizon | MILWAUKZN1 | 2022-02-04 | yes | yes |
| 414-310 | Onvoy | MILWAUKZN1 | 2017-08-09 | yes | yes |
| 414-312 | Lumen | MILWAUKZN1 | 2005-11-09 | yes | yes |
| 414-313 | UNITED STATES CELLULAR - WI | MILWAUKZN1 | – | yes | yes |
| 414-314 | Spok | MILWAUKZN1 | – | – | yes |
| 414-315 | UNITED STATES CELLULAR - WI | MILWAUKZN1 | – | yes | yes |
| 414-316 | Verizon | MILWAUKZN1 | 2012-09-07 | yes | yes |
| 414-317 | T-Mobile | MILWAUKZN1 | 2022-01-20 | yes | yes |
| 414-318 | American Messaging | MILWAUKZN1 | – | – | yes |
| 414-319 | AT&T | MILWAUKZN1 | – | yes | yes |
| 414-320 | Spok | MILWAUKZN1 | – | – | yes |
| 414-321 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-322 | UNITED STATES CELLULAR - WI | MILWAUKZN1 | – | yes | yes |
| 414-323 | AT&T | MILWAUKZN1 | 2011-09-23 | yes | yes |
| 414-324 | T-Mobile | MILWAUKZN1 | – | – | yes |
| 414-325 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-326 | Lumen | MILWAUKZN1 | 2001-09-28 | yes | yes |
| 414-327 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-328 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-329 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-330 | Spok | MILWAUKZN1 | – | – | yes |
| 414-331 | Verizon | MILWAUKZN1 | – | – | yes |
| 414-332 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-333 | UNITED STATES CELLULAR - WI | MILWAUKZN1 | – | yes | yes |
| 414-334 | T-Mobile | MILWAUKZN5 | 2003-02-24 | yes | yes |
| 414-335 | Verizon | MILWAUKZN1 | 2008-09-15 | yes | yes |
| 414-336 | AT&T | MILWAUKZN1 | – | yes | yes |
| 414-337 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-338 | Onvoy | MILWAUKZN1 | – | yes | yes |
| 414-339 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-340 | Onvoy | MILWAUKZN1 | 2023-09-13 | yes | yes |
| 414-341 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-342 | AT&T | MILWAUKZN1 | – | yes | yes |
| 414-343 | AT&T | MILWAUKZN1 | – | yes | yes |
| 414-344 | AT&T | MILWAUKZN1 | – | yes | yes |
| 414-345 | AT&T | MILWAUKZN1 | – | yes | yes |
| 414-346 | Onvoy | MILWAUKZN5 | 2015-12-29 | yes | yes |
| 414-347 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-348 | FRACTEL, LLC | MILWAUKZN4 | 2020-03-02 | yes | yes |
| 414-349 | T-Mobile | MILWAUKZN1 | – | yes | yes |
| 414-350 | T-Mobile | MILWAUKZN1 | – | yes | yes |
| 414-351 | AT&T | MILWAUKZN4 | – | – | yes |
| 414-352 | AT&T | MILWAUKZN4 | – | – | yes |
| 414-353 | AT&T | MILWAUKZN4 | – | – | yes |
| 414-354 | AT&T | MILWAUKZN4 | – | – | yes |
| 414-355 | AT&T | MILWAUKZN4 | – | – | yes |
| 414-356 | Onvoy | MILWAUKZN1 | 2023-12-11 | yes | yes |
| 414-357 | AT&T | MILWAUKZN4 | – | – | yes |
| 414-358 | AT&T | MILWAUKZN4 | – | – | yes |
| 414-359 | AT&T | MILWAUKZN4 | – | – | yes |
| 414-360 | Charter | MILWAUKZN5 | 2024-01-11 | yes | yes |
| 414-361 | Onvoy | MILWAUKZN1 | 2024-02-21 | yes | yes |
| 414-362 | AT&T | MILWAUKZN4 | – | – | yes |
| 414-363 | Onvoy | MILWAUKZN3 | 2021-12-15 | yes | yes |
| 414-364 | T-Mobile | MILWAUKZN4 | – | – | yes |
| 414-365 | AT&T | MILWAUKZN4 | – | – | yes |
| 414-366 | T-Mobile | MILWAUKZN1 | 2011-02-25 | yes | yes |
| 414-367 | Lumen | MILWAUKZN3 | 2002-11-18 | yes | yes |
| 414-368 | Lumen | MILWAUKZN4 | 2002-11-18 | yes | yes |
| 414-369 | Lumen | MILWAUKZN5 | 2002-11-18 | yes | yes |
| 414-370 | COMMIO, LLC | MILWAUKZN1 | 2024-03-06 | yes | yes |
| 414-371 | AT&T | MILWAUKZN4 | – | – | yes |
| 414-372 | AT&T | MILWAUKZN1 | – | yes | yes |
| 414-373 | Verizon | MILWAUKZN1 | 2022-07-13 | yes | yes |
| 414-374 | AT&T | MILWAUKZN1 | – | yes | yes |
| 414-375 | Lumen | MILWAUKZN4 | 2002-12-16 | yes | yes |
| 414-376 | Lumen | MILWAUKZN5 | 2002-12-16 | yes | yes |
| 414-377 | Lumen | MILWAUKZN3 | 2002-12-16 | yes | yes |
| 414-378 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-379 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-380 | UNITED STATES CELLULAR - WI | MILWAUKZN1 | – | yes | yes |
| 414-381 | T-Mobile | MILWAUKZN4 | 2022-08-29 | yes | yes |
| 414-382 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-383 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-384 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-385 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-386 | Lumen | MILWAUKZN3 | – | yes | yes |
| 414-387 | Onvoy | MILWAUKZN1 | 2024-03-29 | yes | yes |
| 414-388 | T-Mobile | MILWAUKZN1 | 2011-06-09 | yes | yes |
| 414-389 | AT&T | MILWAUKZN1 | – | yes | yes |
| 414-390 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-391 | T-Mobile | MILWAUKZN1 | 2011-06-21 | yes | yes |
| 414-392 | Onvoy | MILWAUKZN4 | 2024-04-10 | yes | yes |
| 414-393 | AT&T | MILWAUKZN1 | – | yes | yes |
| 414-394 | T-Mobile | MILWAUKZN1 | 2011-07-27 | yes | yes |
| 414-395 | Bandwidth | MILWAUKZN1 | 2008-05-15 | yes | yes |
| 414-396 | Verizon | MILWAUKZN1 | 2024-05-22 | yes | yes |
| 414-397 | T-Mobile | MILWAUKZN1 | – | yes | yes |
| 414-398 | Onvoy | MILWAUKZN1 | 2024-05-31 | yes | yes |
| 414-399 | Verizon | MILWAUKZN1 | 2010-10-18 | yes | yes |
| 414-400 | Onvoy | MILWAUKZN1 | 2012-10-18 | yes | yes |
| 414-401 | AT&T | MILWAUKZN1 | 2024-07-08 | yes | yes |
| 414-402 | Spok | MILWAUKZN1 | – | – | yes |
| 414-403 | Verizon | MILWAUKZN1 | – | – | yes |
| 414-404 | Peerless | MILWAUKZN1 | – | yes | yes |
| 414-405 | Verizon | MILWAUKZN1 | – | – | yes |
| 414-406 | T-Mobile | MILWAUKZN1 | – | yes | yes |
| 414-407 | American Messaging | MILWAUKZN1 | – | – | yes |
| 414-408 | Bandwidth | MILWAUKZN1 | 2024-08-15 | yes | yes |
| 414-409 | AT&T | MILWAUKZN3 | – | yes | yes |
| 414-410 | AT&T | MILWAUKZN4 | – | yes | yes |
| 414-412 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-413 | Bandwidth | MILWAUKZN5 | 2024-08-20 | yes | yes |
| 414-414 | Onvoy | MILWAUKZN3 | 2022-09-26 | yes | yes |
| 414-415 | Charter | MILWAUKZN3 | 2021-02-05 | yes | yes |
| 414-416 | UNITED STATES CELLULAR - WI | MILWAUKZN1 | – | yes | yes |
| 414-417 | Bandwidth | MILWAUKZN3 | 2024-09-25 | yes | yes |
| 414-418 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-419 | UNITED STATES CELLULAR - WI | MILWAUKZN1 | – | yes | yes |
| 414-420 | Onvoy | MILWAUKZN4 | 2019-03-13 | yes | yes |
| 414-421 | AT&T | MILWAUKZN3 | – | – | yes |
| 414-422 | AT&T | MILWAUKZN3 | – | yes | yes |
| 414-423 | AT&T | MILWAUKZN3 | – | – | yes |
| 414-424 | Onvoy | MILWAUKZN1 | 2022-11-15 | yes | yes |
| 414-425 | AT&T | MILWAUKZN3 | – | – | yes |
| 414-426 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-427 | AT&T | MILWAUKZN3 | – | – | yes |
| 414-428 | UNITED STATES CELLULAR - WI | MILWAUKZN1 | 2025-03-07 | yes | yes |
| 414-429 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-430 | UNITED STATES CELLULAR - WI | MILWAUKZN1 | – | yes | yes |
| 414-431 | Windstream | MILWAUKZN1 | – | – | yes |
| 414-432 | FRACTEL, LLC | MILWAUKZN5 | 2021-07-02 | yes | yes |
| 414-433 | Windstream | MILWAUKZN3 | – | yes | yes |
| 414-434 | Windstream | MILWAUKZN4 | – | yes | yes |
| 414-435 | Windstream | MILWAUKZN5 | – | yes | yes |
| 414-436 | Onvoy | MILWAUKZN1 | 2014-08-11 | yes | yes |
| 414-437 | EON TELECOM, INC. | MILWAUKZN5 | 2024-10-08 | yes | yes |
| 414-438 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-439 | T-Mobile | MILWAUKZN1 | 2014-03-17 | yes | yes |
| 414-440 | American Messaging | MILWAUKZN1 | – | – | yes |
| 414-441 | Onvoy | MILWAUKZN3 | 2020-06-22 | yes | yes |
| 414-442 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-443 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-444 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-445 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-446 | T-Mobile | MILWAUKZN4 | 2004-03-01 | yes | yes |
| 414-447 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-448 | Windstream | MILWAUKZN3 | – | yes | yes |
| 414-449 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-450 | EON TELECOM, INC. | MILWAUKZN4 | 2024-10-08 | yes | yes |
| 414-451 | Charter | MILWAUKZN1 | 2025-01-29 | yes | yes |
| 414-452 | UNITED STATES CELLULAR - WI | MILWAUKZN1 | 2025-03-05 | yes | yes |
| 414-453 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-454 | AT&T | MILWAUKZN1 | – | yes | yes |
| 414-455 | Verizon | MILWAUKZN1 | 2003-10-28 | yes | yes |
| 414-456 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-457 | UNITED STATES CELLULAR - WI | MILWAUKZN1 | 2025-03-05 | yes | yes |
| 414-458 | Verizon | MILWAUKZN3 | 2012-08-03 | yes | yes |
| 414-459 | AT&T | MILWAUKZN1 | – | yes | yes |
| 414-460 | T-Mobile | MILWAUKZN1 | – | yes | yes |
| 414-461 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-462 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-463 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-464 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-465 | AT&T | MILWAUKZN1 | – | yes | yes |
| 414-466 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-467 | T-Mobile | MILWAUKZN1 | – | yes | yes |
| 414-468 | UNITED STATES CELLULAR - WI | MILWAUKZN1 | 2025-03-05 | yes | yes |
| 414-469 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-470 | UNITED STATES CELLULAR - WI | MILWAUKZN1 | 2025-03-05 | yes | yes |
| 414-471 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-472 | UNITED STATES CELLULAR - WI | MILWAUKZN1 | 2025-03-05 | yes | yes |
| 414-473 | UNITED STATES CELLULAR - WI | MILWAUKZN1 | 2025-03-07 | yes | yes |
| 414-474 | UNITED STATES CELLULAR - WI | MILWAUKZN1 | 2025-03-07 | yes | yes |
| 414-475 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-476 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-477 | Verizon | MILWAUKZN1 | – | yes | yes |
| 414-478 | UNITED STATES CELLULAR - WI | MILWAUKZN1 | 2025-03-07 | yes | yes |
| 414-479 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-480 | Spok | MILWAUKZN5 | – | – | yes |
| 414-481 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-482 | AT&T | MILWAUKZN1 | – | yes | yes |
| 414-483 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-484 | T-Mobile | MILWAUKZN1 | 2011-01-31 | yes | yes |
| 414-485 | Peerless | MILWAUKZN1 | – | yes | yes |
| 414-486 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-487 | UNITED STATES CELLULAR - WI | MILWAUKZN1 | 2025-03-07 | yes | yes |
| 414-488 | AT&T | MILWAUKZN1 | 2015-10-22 | yes | yes |
| 414-489 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-490 | UNITED STATES CELLULAR - WI | MILWAUKZN1 | 2025-03-07 | yes | yes |
| 414-491 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-492 | UNITED STATES CELLULAR - WI | MILWAUKZN1 | 2025-03-07 | yes | yes |
| 414-493 | UNITED STATES CELLULAR - WI | MILWAUKZN1 | 2025-03-07 | yes | yes |
| 414-494 | UNITED STATES CELLULAR - WI | MILWAUKZN1 | 2025-03-07 | yes | yes |
| 414-495 | UNITED STATES CELLULAR - WI | MILWAUKZN1 | 2025-03-07 | yes | yes |
| 414-496 | UNITED STATES CELLULAR - WI | MILWAUKZN1 | 2025-03-07 | yes | yes |
| 414-497 | Verizon | MILWAUKZN5 | 2022-03-15 | yes | yes |
| 414-498 | UNITED STATES CELLULAR - WI | MILWAUKZN1 | 2025-03-07 | yes | yes |
| 414-499 | T-Mobile | MILWAUKZN1 | 2011-01-31 | yes | yes |
| 414-500 | Charter | MILWAUKZN3 | 2024-01-11 | yes | yes |
| 414-501 | AT&T | MILWAUKZN5 | – | yes | yes |
| 414-502 | Onvoy | MILWAUKZN1 | 2008-01-14 | yes | yes |
| 414-503 | UNITED STATES CELLULAR - WI | MILWAUKZN1 | 2025-03-07 | yes | yes |
| 414-504 | UNITED STATES CELLULAR - WI | MILWAUKZN1 | 2025-03-07 | yes | yes |
| 414-505 | UNITED STATES CELLULAR - WI | MILWAUKZN1 | 2025-03-07 | yes | yes |
| 414-506 | AT&T | MILWAUKZN1 | 2025-09-08 | yes | yes |
| 414-507 | UNITED STATES CELLULAR - WI | MILWAUKZN1 | – | yes | yes |
| 414-508 | Onvoy | MILWAUKZN1 | 2025-10-02 | yes | yes |
| 414-509 | T-Mobile | MILWAUKZN1 | 2015-08-13 | yes | yes |
| 414-510 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-512 | AT&T | MILWAUKZN1 | 2025-10-09 | yes | yes |
| 414-513 | AT&T | MILWAUKZN1 | 2025-11-10 | yes | yes |
| 414-514 | AT&T | MILWAUKZN1 | 2008-12-03 | yes | yes |
| 414-515 | American Messaging | MILWAUKZN1 | – | – | yes |
| 414-516 | Verizon | MILWAUKZN1 | – | – | yes |
| 414-517 | T-Mobile | MILWAUKZN1 | – | yes | yes |
| 414-518 | AT&T | MILWAUKZN1 | 2025-12-05 | yes | yes |
| 414-519 | UNITED STATES CELLULAR - WI | MILWAUKZN1 | – | yes | yes |
| 414-520 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-521 | AT&T | MILWAUKZN1 | 2025-12-05 | yes | yes |
| 414-522 | Verizon | MILWAUKZN1 | 2012-11-16 | yes | yes |
| 414-523 | Onvoy | MILWAUKZN1 | 2026-08-21 | yes | no |
| 414-524 | AT&T | MILWAUKZN1 | – | yes | yes |
| 414-525 | AT&T | MILWAUKZN3 | – | – | yes |
| 414-526 | AT&T | MILWAUKZN1 | 2002-01-29 | – | yes |
| 414-527 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-528 | WAVENATION, LLC | MILWAUKZN1 | 2025-12-22 | yes | yes |
| 414-529 | AT&T | MILWAUKZN3 | – | – | yes |
| 414-530 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-531 | UNITED STATES CELLULAR - WI | MILWAUKZN1 | – | yes | yes |
| 414-533 | Windstream | MILWAUKZN1 | 2014-03-25 | yes | yes |
| 414-534 | AT&T | MILWAUKZN3 | 2002-12-20 | – | yes |
| 414-535 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-536 | AT&T | MILWAUKZN1 | – | yes | yes |
| 414-539 | Charter | MILWAUKZN1 | 2013-12-14 | yes | yes |
| 414-540 | AT&T | MILWAUKZN4 | – | yes | yes |
| 414-541 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-543 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-544 | AT&T | MILWAUKZN1 | 2008-06-27 | yes | yes |
| 414-545 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-546 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-550 | UNITED STATES CELLULAR - WI | MILWAUKZN1 | – | yes | yes |
| 414-551 | AT&T | MILWAUKZN1 | 2008-05-06 | yes | yes |
| 414-552 | AT&T | MILWAUKZN1 | 2008-06-27 | yes | yes |
| 414-553 | AT&T | MILWAUKZN1 | 2008-06-27 | yes | yes |
| 414-554 | AT&T | MILWAUKZN1 | 2008-12-03 | yes | yes |
| 414-557 | American Messaging | MILWAUKZN1 | – | – | yes |
| 414-558 | American Messaging | MILWAUKZN1 | – | – | yes |
| 414-559 | Verizon | MILWAUKZN1 | – | – | yes |
| 414-562 | AT&T | MILWAUKZN1 | – | yes | yes |
| 414-563 | Windstream | MILWAUKZN5 | – | yes | yes |
| 414-566 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-567 | AT&T | MILWAUKZN1 | 2021-02-01 | yes | yes |
| 414-570 | AT&T | MILWAUKZN5 | – | – | yes |
| 414-571 | AT&T | MILWAUKZN5 | – | – | yes |
| 414-573 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-574 | AT&T | MILWAUKZN5 | 2002-05-01 | yes | yes |
| 414-575 | Spok | MILWAUKZN1 | – | – | yes |
| 414-577 | AT&T | MILWAUKZN4 | – | – | yes |
| 414-578 | AT&T | MILWAUKZN1 | – | yes | yes |
| 414-581 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-584 | American Messaging | MILWAUKZN1 | – | – | yes |
| 414-585 | AT&T | MILWAUKZN1 | 2013-01-10 | yes | yes |
| 414-586 | AT&T | MILWAUKZN4 | – | yes | yes |
| 414-587 | UNITED STATES CELLULAR - WI | MILWAUKZN1 | – | yes | yes |
| 414-588 | UNITED STATES CELLULAR - WI | MILWAUKZN1 | – | yes | yes |
| 414-590 | American Messaging | MILWAUKZN1 | – | – | yes |
| 414-595 | T-Mobile | MILWAUKZN1 | 2013-04-25 | yes | yes |
| 414-596 | American Messaging | MILWAUKZN1 | – | – | yes |
| 414-600 | Onvoy | MILWAUKZN4 | 2012-10-19 | yes | yes |
| 414-603 | American Messaging | MILWAUKZN1 | – | – | yes |
| 414-604 | AT&T | MILWAUKZN1 | – | yes | yes |
| 414-607 | AT&T | MILWAUKZN1 | – | yes | yes |
| 414-610 | UNITED STATES CELLULAR - WI | MILWAUKZN1 | – | yes | yes |
| 414-614 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-615 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-616 | AT&T | MILWAUKZN1 | – | yes | yes |
| 414-617 | Verizon | MILWAUKZN1 | – | – | yes |
| 414-622 | Bandwidth | MILWAUKZN4 | 2015-02-16 | yes | yes |
| 414-625 | AT&T | MILWAUKZN1 | – | yes | yes |
| 414-626 | Onvoy | MILWAUKZN5 | 2019-03-14 | yes | yes |
| 414-627 | UNITED STATES CELLULAR - WI | MILWAUKZN1 | – | yes | yes |
| 414-628 | T-Mobile | MILWAUKZN3 | – | – | yes |
| 414-629 | T-Mobile | MILWAUKZN1 | 2015-05-14 | yes | yes |
| 414-630 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-635 | Charter | MILWAUKZN1 | 2017-02-16 | yes | yes |
| 414-639 | T-Mobile | MILWAUKZN1 | 2011-06-03 | yes | yes |
| 414-640 | UNITED STATES CELLULAR - WI | MILWAUKZN1 | – | yes | yes |
| 414-643 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-644 | FRACTEL, LLC | MILWAUKZN1 | 2020-08-05 | yes | yes |
| 414-645 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-646 | AT&T | MILWAUKZN1 | 2002-03-01 | – | yes |
| 414-647 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-649 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-651 | UNITED STATES CELLULAR - WI | MILWAUKZN1 | – | yes | yes |
| 414-659 | UNITED STATES CELLULAR - WI | MILWAUKZN1 | – | yes | yes |
| 414-661 | AT&T | MILWAUKZN5 | 2002-07-25 | – | yes |
| 414-662 | Peerless | MILWAUKZN1 | – | yes | yes |
| 414-665 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-666 | Onvoy | MILWAUKZN1 | 2017-09-27 | yes | yes |
| 414-667 | FRACTEL, LLC | MILWAUKZN5 | 2020-05-13 | yes | yes |
| 414-669 | Spok | MILWAUKZN1 | – | – | yes |
| 414-670 | Lumen | MILWAUKZN1 | 2008-11-26 | yes | yes |
| 414-671 | AT&T | MILWAUKZN1 | – | yes | yes |
| 414-672 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-676 | T-Mobile | MILWAUKZN5 | 2017-01-12 | yes | yes |
| 414-677 | Onvoy | MILWAUKZN3 | 2021-04-12 | yes | yes |
| 414-678 | AT&T | MILWAUKZN1 | – | yes | yes |
| 414-687 | AT&T | MILWAUKZN1 | 2001-08-07 | – | yes |
| 414-688 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-690 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-698 | T-Mobile | MILWAUKZN1 | – | yes | yes |
| 414-699 | T-Mobile | MILWAUKZN1 | – | yes | yes |
| 414-702 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-704 | Verizon | MILWAUKZN1 | – | – | yes |
| 414-708 | Verizon | MILWAUKZN1 | – | – | yes |
| 414-710 | Charter | MILWAUKZN1 | 2019-10-23 | yes | yes |
| 414-712 | AT&T | MILWAUKZN1 | – | yes | yes |
| 414-716 | Windstream | MILWAUKZN4 | – | yes | yes |
| 414-719 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-721 | Lumen | MILWAUKZN1 | – | yes | yes |
| 414-722 | T-Mobile | MILWAUKZN1 | 2011-01-07 | yes | yes |
| 414-726 | AT&T | MILWAUKZN1 | 2020-08-25 | yes | yes |
| 414-727 | TDS | MILWAUKZN1 | – | yes | yes |
| 414-731 | Verizon | MILWAUKZN1 | – | yes | yes |
| 414-732 | T-Mobile | MILWAUKZN1 | – | yes | yes |
| 414-736 | T-Mobile | MILWAUKZN1 | 2002-01-16 | yes | yes |
| 414-737 | T-Mobile | MILWAUKZN5 | 2002-01-16 | yes | yes |
| 414-739 | T-Mobile | MILWAUKZN1 | 2011-01-31 | yes | yes |
| 414-742 | TON80 COMMUNICATIONS, LLC | MILWAUKZN4 | 2022-01-07 | yes | yes |
| 414-744 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-745 | T-Mobile | MILWAUKZN1 | – | yes | yes |
| 414-747 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-748 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-750 | UNITED STATES CELLULAR - WI | MILWAUKZN1 | – | yes | yes |
| 414-751 | Lumen | MILWAUKZN4 | – | yes | yes |
| 414-755 | Windstream | MILWAUKZN1 | – | yes | yes |
| 414-758 | Verizon | MILWAUKZN1 | – | yes | yes |
| 414-759 | T-Mobile | MILWAUKZN1 | – | yes | yes |
| 414-760 | AT&T | MILWAUKZN4 | – | – | yes |
| 414-761 | AT&T | MILWAUKZN5 | – | – | yes |
| 414-762 | AT&T | MILWAUKZN5 | – | – | yes |
| 414-763 | Charter | MILWAUKZN1 | 2001-02-02 | yes | yes |
| 414-764 | AT&T | MILWAUKZN5 | – | – | yes |
| 414-765 | AT&T | MILWAUKZN1 | – | yes | yes |
| 414-766 | AT&T | MILWAUKZN5 | – | yes | yes |
| 414-768 | AT&T | MILWAUKZN5 | – | yes | yes |
| 414-769 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-771 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-773 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-774 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-775 | Onvoy | MILWAUKZN5 | – | yes | yes |
| 414-777 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-778 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-779 | AT&T | MILWAUKZN1 | – | yes | yes |
| 414-786 | FRACTEL, LLC | MILWAUKZN4 | 2020-08-27 | yes | yes |
| 414-788 | T-Mobile | MILWAUKZN1 | – | yes | yes |
| 414-791 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-792 | AT&T | MILWAUKZN1 | – | yes | yes |
| 414-793 | T-Mobile | MILWAUKZN1 | – | yes | yes |
| 414-795 | T-Mobile | MILWAUKZN1 | – | yes | yes |
| 414-797 | T-Mobile | MILWAUKZN4 | 2013-10-08 | yes | yes |
| 414-799 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-800 | Onvoy | MILWAUKZN1 | 2015-03-17 | yes | yes |
| 414-801 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-803 | T-Mobile | MILWAUKZN1 | – | yes | yes |
| 414-805 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-807 | T-Mobile | MILWAUKZN1 | – | yes | yes |
| 414-808 | T-Mobile | MILWAUKZN1 | 2015-06-09 | yes | yes |
| 414-810 | UNITED STATES CELLULAR - WI | MILWAUKZN1 | – | yes | yes |
| 414-812 | AT&T | MILWAUKZN1 | 2020-08-20 | yes | yes |
| 414-813 | AT&T | MILWAUKZN1 | – | yes | yes |
| 414-815 | AT&T | MILWAUKZN4 | – | yes | yes |
| 414-816 | Spok | MILWAUKZN1 | – | – | yes |
| 414-817 | AT&T | MILWAUKZN1 | – | yes | yes |
| 414-828 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-831 | Windstream | MILWAUKZN1 | – | – | yes |
| 414-837 | AT&T | MILWAUKZN1 | – | yes | yes |
| 414-838 | Spok | MILWAUKZN1 | – | – | yes |
| 414-839 | T-Mobile | MILWAUKZN1 | – | yes | yes |
| 414-840 | UNITED STATES CELLULAR - WI | MILWAUKZN1 | – | yes | yes |
| 414-841 | T-Mobile | MILWAUKZN1 | – | yes | yes |
| 414-842 | FRACTEL, LLC | MILWAUKZN1 | 2020-03-02 | yes | yes |
| 414-844 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-847 | Windstream | MILWAUKZN1 | – | – | yes |
| 414-850 | Charter | MILWAUKZN1 | 2022-07-14 | yes | yes |
| 414-852 | UNITED STATES CELLULAR - WI | MILWAUKZN1 | – | yes | yes |
| 414-855 | AT&T | MILWAUKZN3 | – | yes | yes |
| 414-856 | TDS | MILWAUKZN5 | – | yes | yes |
| 414-858 | TDS | MILWAUKZN3 | – | yes | yes |
| 414-861 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-865 | T-Mobile | MILWAUKZN4 | 2013-04-25 | yes | yes |
| 414-867 | COMMIO, LLC | MILWAUKZN1 | 2019-07-02 | yes | yes |
| 414-870 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-871 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-873 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-874 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-875 | AT&T | MILWAUKZN1 | – | yes | yes |
| 414-877 | Peerless | MILWAUKZN1 | 2010-04-26 | yes | yes |
| 414-881 | UNITED STATES CELLULAR - WI | MILWAUKZN1 | – | yes | yes |
| 414-882 | Verizon | MILWAUKZN1 | 2010-07-12 | yes | yes |
| 414-885 | Charter | MILWAUKZN1 | 2015-01-20 | yes | yes |
| 414-888 | Onvoy | MILWAUKZN5 | 2012-12-24 | yes | yes |
| 414-890 | Spok | MILWAUKZN1 | – | – | yes |
| 414-892 | Lumen | MILWAUKZN5 | – | yes | yes |
| 414-895 | Onvoy | MILWAUKZN3 | – | yes | yes |
| 414-897 | AT&T | MILWAUKZN1 | – | yes | yes |
| 414-899 | T-Mobile | MILWAUKZN1 | – | yes | yes |
| 414-900 | AHOI LLC | MILWAUKZN1 | 2026-03-18 | yes | yes |
| 414-902 | AT&T | MILWAUKZN1 | – | yes | yes |
| 414-905 | AT&T | MILWAUKZN1 | – | yes | yes |
| 414-906 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-907 | Spok | MILWAUKZN1 | – | – | yes |
| 414-908 | Lumen | MILWAUKZN1 | – | – | yes |
| 414-909 | Bandwidth | MILWAUKZN1 | 2015-02-16 | yes | yes |
| 414-914 | T-Mobile | MILWAUKZN1 | 2011-03-18 | yes | yes |
| 414-915 | T-Mobile | MILWAUKZN1 | – | yes | yes |
| 414-916 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-917 | American Messaging | MILWAUKZN1 | – | – | yes |
| 414-918 | Lumen | MILWAUKZN1 | – | – | yes |
| 414-921 | Lumen | MILWAUKZN1 | – | yes | yes |
| 414-928 | T-Mobile | MILWAUKZN4 | 2015-05-21 | yes | yes |
| 414-930 | Lumen | MILWAUKZN1 | 2014-06-27 | yes | yes |
| 414-931 | AT&T | MILWAUKZN1 | – | yes | yes |
| 414-933 | AT&T | MILWAUKZN1 | – | yes | yes |
| 414-934 | AT&T | MILWAUKZN1 | – | yes | yes |
| 414-935 | AT&T | MILWAUKZN1 | – | yes | yes |
| 414-936 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-937 | AT&T | MILWAUKZN1 | – | yes | yes |
| 414-939 | AT&T | MILWAUKZN1 | 2010-10-18 | yes | yes |
| 414-940 | UNITED STATES CELLULAR - WI | MILWAUKZN1 | – | yes | yes |
| 414-941 | Spok | MILWAUKZN1 | – | – | yes |
| 414-943 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-944 | Verizon | MILWAUKZN1 | – | yes | yes |
| 414-946 | FRACTEL, LLC | MILWAUKZN5 | 2020-08-27 | yes | yes |
| 414-949 | T-Mobile | MILWAUKZN1 | 2010-10-25 | yes | yes |
| 414-955 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-961 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-962 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-963 | AT&T | MILWAUKZN1 | – | yes | yes |
| 414-964 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-966 | FRACTEL, LLC | MILWAUKZN1 | 2021-07-02 | yes | yes |
| 414-967 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-973 | AT&T | MILWAUKZN4 | – | yes | yes |
| 414-975 | T-Mobile | MILWAUKZN1 | – | yes | yes |
| 414-977 | AT&T | MILWAUKZN1 | – | – | yes |
| 414-978 | AT&T | MILWAUKZN1 | – | yes | yes |
| 414-979 | AT&T | MILWAUKZN4 | – | yes | yes |
| 414-981 | Spok | MILWAUKZN1 | – | – | yes |
| 414-982 | Lumen | MILWAUKZN1 | 2010-08-06 | yes | yes |
| 414-985 | AT&T | MILWAUKZN1 | 2001-05-03 | – | yes |
| 414-988 | Charter | MILWAUKZN1 | 2010-10-18 | yes | yes |
| 414-998 | Vonage | MILWAUKZN1 | 2017-09-27 | yes | yes |
| 414-999 | Peerless | MILWAUKZN1 | 2015-11-04 | yes | yes |
Frequently asked
How many prefixes does area code 414 have?
552 NXX blocks are assigned of 786 possible. Each block is 10,000 consecutive numbers, so the code currently covers about 5,520 thousand-number ranges across 4 rate centers.
What do the first three digits after 414 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 414 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 414 table?
That the block is in thousands-block pooling: carriers draw 1,000-number lots from it instead of taking all 10,000. 340 of 414'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