All assignees
800 prefixes in 646 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 646-300 | NWYRCYZN01 | 6959 | 2007-02-21 | Yes |
| 646-301 | NWYRCYZN01 | 6622 | — | Yes |
| 646-302 | NWYRCYZN01 | 6622 | 2001-03-09 | Yes |
| 646-303 | NWYRCYZN01 | 5562 | 2001-06-12 | Yes |
| 646-304 | NWYRCYZN01 | 829J | — | — |
| 646-305 | NWYRCYZN01 | 6622 | — | Yes |
| 646-306 | NWYRCYZN01 | 6959 | — | Yes |
| 646-307 | NWYRCYZN01 | 384C | 2004-05-28 | Yes |
| 646-308 | NWYRCYZN01 | 7229 | — | Yes |
| 646-309 | NWYRCYZN01 | 6622 | — | Yes |
| 646-310 | NWYRCYZN01 | 7140 | 2006-11-07 | Yes |
| 646-311 | XXXXXXXXXX | MULT | — | — |
| 646-312 | NWYRCYZN01 | 829J | — | Yes |
| 646-313 | NWYRCYZN01 | 7140 | — | Yes |
| 646-314 | NWYRCYZN01 | 7353 | — | Yes |
| 646-315 | NWYRCYZN01 | 6959 | 2006-11-21 | Yes |
| 646-316 | NWYRCYZN01 | 6622 | 2002-10-07 | Yes |
| 646-317 | NWYRCYZN01 | 9104 | — | Yes |
| 646-318 | NWYRCYZN01 | 4036 | — | Yes |
| 646-319 | NWYRCYZN01 | 6622 | — | Yes |
| 646-320 | NWYRCYZN01 | 6622 | 2001-08-14 | Yes |
| 646-321 | NWYRCYZN01 | 6622 | — | — |
| 646-322 | NWYRCYZN01 | 6622 | — | — |
| 646-323 | NWYRCYZN01 | 6622 | — | Yes |
| 646-324 | NWYRCYZN01 | 9104 | — | — |
| 646-325 | NWYRCYZN01 | 6622 | — | Yes |
| 646-326 | NWYRCYZN01 | 6622 | 2001-09-27 | Yes |
| 646-327 | NWYRCYZN01 | 6622 | — | — |
| 646-328 | NWYRCYZN01 | 7229 | — | Yes |
| 646-329 | NWYRCYZN01 | 7126 | 2004-06-21 | Yes |
| 646-330 | NWYRCYZN01 | 4036 | — | Yes |
| 646-331 | NWYRCYZN01 | 6622 | 2001-07-17 | — |
| 646-332 | NWYRCYZN01 | 624H | 2022-09-26 | Yes |
| 646-333 | NWYRCYZN01 | 9104 | 2007-02-13 | Yes |
| 646-334 | NWYRCYZN01 | 4036 | 2001-02-27 | — |
| 646-335 | NWYRCYZN01 | 7140 | — | Yes |
| 646-336 | NWYRCYZN01 | 9104 | — | — |
| 646-337 | NWYRCYZN01 | 6622 | — | Yes |
| 646-338 | NWYRCYZN01 | 6622 | 2001-10-18 | — |
| 646-339 | NWYRCYZN01 | 6622 | 2001-10-18 | — |
| 646-340 | NWYRCYZN01 | 829J | — | Yes |
| 646-341 | NWYRCYZN01 | 6959 | 2007-03-16 | Yes |
| 646-342 | NWYRCYZN01 | 6622 | — | Yes |
| 646-343 | NWYRCYZN01 | 9104 | — | Yes |
| 646-344 | NWYRCYZN01 | 7133 | — | Yes |
| 646-345 | NWYRCYZN01 | 6622 | — | Yes |
| 646-346 | NWYRCYZN01 | 829J | — | Yes |
| 646-347 | NWYRCYZN01 | 384C | 2023-05-23 | Yes |
| 646-348 | NWYRCYZN01 | 7140 | — | Yes |
| 646-349 | NWYRCYZN01 | 384C | — | — |
| 646-350 | NWYRCYZN01 | 6622 | 2008-04-30 | Yes |
| 646-351 | NWYRCYZN01 | 6622 | — | Yes |
| 646-352 | NWYRCYZN01 | 7229 | — | Yes |
| 646-353 | NWYRCYZN01 | 5562 | 2008-05-02 | Yes |
| 646-354 | NWYRCYZN01 | 829J | — | Yes |
| 646-355 | NWYRCYZN01 | 6622 | — | Yes |
| 646-356 | NWYRCYZN01 | 829J | — | — |
| 646-357 | NWYRCYZN01 | 6959 | — | Yes |
| 646-358 | NWYRCYZN01 | 829J | — | Yes |
| 646-359 | NWYRCYZN01 | 6622 | — | Yes |
| 646-360 | NWYRCYZN01 | 997E | 2008-09-03 | Yes |
| 646-361 | NWYRCYZN01 | 6622 | — | — |
| 646-362 | NWYRCYZN01 | 4006 | — | — |
| 646-363 | NWYRCYZN01 | 5562 | — | Yes |
| 646-364 | NWYRCYZN01 | 7140 | — | Yes |
| 646-365 | NWYRCYZN01 | 829J | — | — |
| 646-366 | NWYRCYZN01 | 9104 | — | — |
| 646-367 | NWYRCYZN01 | 8340 | — | Yes |
| 646-368 | NWYRCYZN01 | 9104 | — | Yes |
| 646-369 | NWYRCYZN01 | 6959 | — | Yes |
| 646-370 | NWYRCYZN01 | 6959 | 2009-12-18 | Yes |
| 646-371 | NWYRCYZN01 | 9104 | — | Yes |
| 646-372 | NWYRCYZN01 | 6622 | 2002-06-20 | Yes |
| 646-373 | NWYRCYZN01 | 6622 | — | Yes |
| 646-374 | NWYRCYZN01 | 6622 | — | Yes |
| 646-375 | NWYRCYZN01 | 7229 | — | — |
| 646-376 | NWYRCYZN01 | 9104 | 2004-04-30 | Yes |
| 646-377 | NWYRCYZN01 | 5562 | — | Yes |
| 646-378 | NWYRCYZN01 | 325B | — | Yes |
| 646-379 | NWYRCYZN01 | 4036 | 2001-02-27 | Yes |
| 646-380 | NWYRCYZN01 | 829J | 2010-02-19 | Yes |
| 646-381 | NWYRCYZN01 | 384C | 2007-07-12 | Yes |
| 646-382 | NWYRCYZN01 | 6622 | — | Yes |
| 646-383 | NWYRCYZN01 | 7229 | — | — |
| 646-384 | NWYRCYZN01 | 6622 | — | Yes |
| 646-385 | NWYRCYZN01 | 6959 | 2007-09-18 | Yes |
| 646-386 | NWYRCYZN01 | 9104 | — | Yes |
| 646-387 | NWYRCYZN01 | 6622 | 2001-05-04 | — |
| 646-388 | NWYRCYZN01 | 4036 | — | Yes |
| 646-389 | NWYRCYZN01 | 997E | 2010-03-04 | Yes |
| 646-390 | NWYRCYZN01 | 829J | — | — |
| 646-391 | NWYRCYZN01 | 6622 | — | Yes |
| 646-392 | NWYRCYZN01 | 9104 | 2007-11-27 | Yes |
| 646-393 | NWYRCYZN01 | 612K | — | Yes |
| 646-394 | NWYRCYZN01 | 9104 | — | Yes |
| 646-395 | NWYRCYZN01 | 7229 | — | Yes |
| 646-396 | NWYRCYZN01 | 997E | 2009-08-19 | Yes |
| 646-397 | NWYRCYZN01 | 997E | 2010-03-05 | Yes |
| 646-398 | NWYRCYZN01 | 6959 | 2010-03-10 | Yes |
| 646-399 | NWYRCYZN01 | 5562 | — | 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.