All assignees
729 prefixes in 734 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 734-300 | — | — | ||
| 734-301 | TRENTON | 2964 | 2006-05-23 | Yes |
| 734-302 | ANN ARBOR | 9323 | — | Yes |
| 734-303 | NEW BOSTON | 6003 | 2004-08-03 | Yes |
| 734-304 | TRENTON | 7279 | 2014-06-25 | Yes |
| 734-305 | MONROE | 9748 | — | — |
| 734-306 | WAYNE | 2964 | — | Yes |
| 734-307 | TRENTON | 543C | — | Yes |
| 734-308 | WYANDOTTE | 6003 | — | — |
| 734-309 | WYANDOTTE | 6003 | — | Yes |
| 734-310 | DUNDEE | 817J | — | — |
| 734-311 | XXXXXXXXXX | MULT | — | — |
| 734-312 | WAYNE | 6003 | 2023-11-06 | Yes |
| 734-313 | — | — | ||
| 734-314 | GREGORY | 817J | — | — |
| 734-315 | NEW BOSTON | 516C | 2010-01-22 | Yes |
| 734-316 | SALINE | 318J | — | Yes |
| 734-317 | ERIE | 770E | — | Yes |
| 734-318 | WYANDOTTE | 318J | 2016-12-14 | Yes |
| 734-319 | ERIE | 817J | — | — |
| 734-320 | ANN ARBOR | 2964 | — | Yes |
| 734-321 | MAYBEE | 817J | — | — |
| 734-322 | MONROE | 6120 | — | Yes |
| 734-323 | ANN ARBOR | 2964 | — | Yes |
| 734-324 | WYANDOTTE | 9323 | — | Yes |
| 734-325 | BELLEVILLE | 318J | — | Yes |
| 734-326 | WAYNE | 9323 | — | — |
| 734-327 | ANN ARBOR | 9323 | — | — |
| 734-328 | BELLEVILLE | 6120 | — | Yes |
| 734-329 | WAYNE | 7279 | — | Yes |
| 734-330 | ANN ARBOR | 2964 | — | Yes |
| 734-331 | WAYNE | 318J | — | Yes |
| 734-332 | ANN ARBOR | 9323 | — | Yes |
| 734-333 | WHITMORELK | 829J | 2009-11-06 | Yes |
| 734-334 | WAYNE | 9323 | — | Yes |
| 734-335 | PLYMOUTH | 770E | — | Yes |
| 734-336 | MANCHESTER | 543C | — | Yes |
| 734-337 | YPSILANTI | 6120 | — | Yes |
| 734-338 | LIVONIA | 318J | — | Yes |
| 734-339 | WHITMORELK | 6003 | — | Yes |
| 734-340 | YPSILANTI | 318J | — | Yes |
| 734-341 | TRENTON | 5562 | — | Yes |
| 734-342 | MONROE | 817J | — | — |
| 734-343 | LIVONIA | 6120 | 2012-02-15 | Yes |
| 734-344 | MONROE | 6120 | — | Yes |
| 734-345 | BELLEVILLE | 7279 | — | Yes |
| 734-346 | TRENTON | 5562 | 2017-12-22 | Yes |
| 734-347 | TEMPERANCE | 6003 | — | — |
| 734-348 | FLAT ROCK | 6120 | — | Yes |
| 734-349 | MONROE | 829J | — | Yes |
| 734-350 | YPSILANTI | 9323 | 2019-10-30 | Yes |
| 734-351 | WAYNE | 6534 | — | Yes |
| 734-352 | ANN ARBOR | 7279 | — | Yes |
| 734-353 | ANN ARBOR | 6534 | — | Yes |
| 734-354 | PLYMOUTH | 9323 | — | — |
| 734-355 | ANN ARBOR | 6534 | — | — |
| 734-356 | ANN ARBOR | 965H | 2020-02-19 | Yes |
| 734-357 | PLYMOUTH | 7279 | — | Yes |
| 734-358 | ANN ARBOR | 6534 | — | — |
| 734-359 | PLYMOUTH | 318J | 2017-02-07 | Yes |
| 734-360 | WYANDOTTE | 2964 | 2023-11-16 | Yes |
| 734-361 | MAYBEE | 543C | 2020-10-23 | Yes |
| 734-362 | TRENTON | 9323 | — | Yes |
| 734-363 | TRENTON | 5562 | 2007-03-20 | Yes |
| 734-364 | MAYBEE | 6120 | 2001-05-10 | Yes |
| 734-365 | TRENTON | 770E | — | Yes |
| 734-366 | WAYNE | 6003 | — | Yes |
| 734-367 | LIVONIA | 9323 | — | Yes |
| 734-368 | ANN ARBOR | 2964 | — | Yes |
| 734-369 | ANN ARBOR | 318J | — | Yes |
| 734-370 | LAMBERTVL | 817J | — | — |
| 734-371 | DUNDEE | 5562 | 2018-07-13 | Yes |
| 734-372 | ANN ARBOR | 817J | — | — |
| 734-373 | ANN ARBOR | 2964 | 2018-10-19 | Yes |
| 734-374 | WYANDOTTE | 9323 | — | Yes |
| 734-375 | GREGORY | 770E | — | Yes |
| 734-376 | IDA | 817J | — | — |
| 734-377 | WAYNE | 2964 | — | Yes |
| 734-378 | DEXTER | 7279 | — | Yes |
| 734-379 | ROCKWOOD | 9323 | — | — |
| 734-380 | ROMULUS | 6630 | — | — |
| 734-381 | MAYBEE | 6003 | 2013-01-22 | Yes |
| 734-382 | GREGORY | 829J | — | Yes |
| 734-383 | YPSILANTI | 2964 | — | Yes |
| 734-384 | MONROE | 9323 | — | Yes |
| 734-385 | CHELSEA | 829J | — | Yes |
| 734-386 | PLYMOUTH | 9323 | 2005-12-14 | Yes |
| 734-387 | TEMPERANCE | 817J | — | — |
| 734-388 | DEXTER | 6120 | 2005-09-12 | Yes |
| 734-389 | ANN ARBOR | 829J | — | Yes |
| 734-390 | YPSILANTI | 829J | — | Yes |
| 734-391 | BELLEVILLE | 770E | — | Yes |
| 734-392 | PLYMOUTH | 770E | — | Yes |
| 734-393 | LOSTPNNSUL | 6120 | — | Yes |
| 734-394 | WAYNE | 9323 | — | Yes |
| 734-395 | ANN ARBOR | 6003 | — | — |
| 734-396 | MANCHESTER | 770E | — | Yes |
| 734-397 | WAYNE | 9323 | — | — |
| 734-398 | WAYNE | 9323 | — | Yes |
| 734-399 | MAYBEE | 770E | — | Yes |
These are initial assignees from NANPA CO-code records — because of number portability, the current serving carrier of individual numbers may differ. Bulk export requires a membership.