All assignees
629 prefixes in 401 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 401-300 | CENTREDALE | 5562 | 2002-10-23 | Yes |
| 401-301 | PROVIDENCE | 6889 | 2002-03-07 | — |
| 401-302 | PROVIDENCE | 6389 | 2011-11-17 | Yes |
| 401-303 | WARREN | 624H | — | Yes |
| 401-304 | W WARWICK | 829J | 2001-10-08 | Yes |
| 401-305 | PAWTUCKET | 7351 | — | Yes |
| 401-306 | CUMBLND HL | 6889 | 2021-02-08 | Yes |
| 401-307 | TIVERTON | 7351 | — | Yes |
| 401-308 | NARRAGNSTT | 7351 | — | Yes |
| 401-309 | WOONSOCKET | 5562 | 2002-10-23 | Yes |
| 401-310 | WARREN | 003F | — | Yes |
| 401-311 | XXXXXXXXXX | MULT | — | — |
| 401-312 | PAWTUCKET | 829J | — | Yes |
| 401-313 | COVENTRY | 977E | — | Yes |
| 401-314 | NEWPORT | 4016 | — | Yes |
| 401-315 | WESTERLY | 318J | — | Yes |
| 401-316 | PROVIDENCE | 4036 | — | — |
| 401-317 | GREENWICH | 073H | 2016-12-02 | Yes |
| 401-318 | PROVIDENCE | 6389 | 2011-08-16 | Yes |
| 401-319 | CENTREDALE | 829J | 2009-01-09 | Yes |
| 401-320 | W WARWICK | 829J | — | Yes |
| 401-321 | HOPEVALLEY | 7229 | — | Yes |
| 401-322 | WESTERLY | 9102 | — | Yes |
| 401-323 | PROVIDENCE | 4036 | — | — |
| 401-324 | NEWPORT | 829J | — | Yes |
| 401-325 | WOONSOCKET | 003F | — | — |
| 401-326 | WESTERLY | 7229 | — | Yes |
| 401-327 | PROVIDENCE | 5562 | 2011-08-04 | Yes |
| 401-328 | PROVIDENCE | 939H | 2019-07-08 | Yes |
| 401-329 | NO KINGSTN | 4016 | — | Yes |
| 401-330 | PROVIDENCE | 829J | 2001-10-08 | Yes |
| 401-331 | PROVIDENCE | 9102 | — | — |
| 401-332 | PROVIDENCE | 5562 | 2011-03-11 | Yes |
| 401-333 | PAWTUCKET | 9102 | — | — |
| 401-334 | PAWTUCKET | 9102 | — | — |
| 401-335 | PAWTUCKET | 9102 | — | Yes |
| 401-336 | GREENWICH | 7351 | — | Yes |
| 401-337 | WARREN | 7229 | — | Yes |
| 401-338 | PROVIDENCE | 4036 | — | — |
| 401-339 | PROVIDENCE | 4036 | 2001-01-31 | — |
| 401-340 | PROVIDENCE | 6389 | 2011-08-08 | Yes |
| 401-341 | NEWPORT | 9102 | — | Yes |
| 401-342 | BRISTOL | 4016 | — | Yes |
| 401-343 | HOPEVALLEY | 7421 | 2004-03-03 | Yes |
| 401-344 | NEWPORT | 4016 | — | Yes |
| 401-345 | PROVIDENCE | 5562 | — | Yes |
| 401-346 | PROVIDENCE | 6889 | 2011-09-19 | Yes |
| 401-347 | PROVIDENCE | 977E | 2008-03-19 | Yes |
| 401-348 | WESTERLY | 9102 | — | — |
| 401-349 | CENTREDALE | 318J | — | Yes |
| 401-350 | PROVIDENCE | 003F | — | — |
| 401-351 | PROVIDENCE | 9102 | — | — |
| 401-352 | WARWICK | 829J | — | Yes |
| 401-353 | PROVIDENCE | 9102 | — | — |
| 401-354 | PROVIDENCE | 9102 | — | Yes |
| 401-355 | CENTREDALE | 965H | 2020-07-24 | Yes |
| 401-356 | WOONSOCKET | 318J | — | Yes |
| 401-357 | WOONSOCKET | 9102 | — | Yes |
| 401-358 | PASCOAG | 003F | 2021-03-26 | Yes |
| 401-359 | PAWTUCKET | 6889 | — | Yes |
| 401-360 | NARRAGNSTT | 829J | 2001-11-27 | Yes |
| 401-361 | WARWICK | 073H | 2021-05-25 | Yes |
| 401-362 | PAWTUCKET | 6889 | 2021-07-01 | Yes |
| 401-363 | NARRAGNSTT | 003F | 2001-05-29 | Yes |
| 401-364 | CAROLINA | 9102 | — | Yes |
| 401-365 | PAWTUCKET | 829J | — | Yes |
| 401-366 | PORTSMOUTH | 829J | — | Yes |
| 401-367 | NEWPORT | 829J | — | Yes |
| 401-368 | PROVIDENCE | 4036 | — | — |
| 401-369 | PROVIDENCE | 4036 | 2001-06-14 | Yes |
| 401-370 | PROVIDENCE | 9102 | — | — |
| 401-371 | PASCOAG | 4016 | — | Yes |
| 401-372 | NO KINGSTN | 7351 | — | Yes |
| 401-373 | CENTREDALE | 977E | 2021-07-20 | Yes |
| 401-374 | PROVIDENCE | 6389 | — | — |
| 401-375 | TIVERTON | 829J | — | Yes |
| 401-376 | CUMBLND HL | 6889 | 2021-08-11 | Yes |
| 401-377 | WESTERLY | 9102 | — | Yes |
| 401-378 | PROVIDENCE | 6389 | — | — |
| 401-379 | NO KINGSTN | 4016 | — | Yes |
| 401-380 | NEWPORT | 829J | — | Yes |
| 401-381 | W WARWICK | 829J | — | Yes |
| 401-382 | PROVIDENCE | 515J | 2021-09-29 | Yes |
| 401-383 | PROVIDENCE | 318J | — | Yes |
| 401-384 | WARWICK | 829J | — | Yes |
| 401-385 | COVENTRY | 318J | — | Yes |
| 401-386 | NO KINGSTN | 977E | — | — |
| 401-387 | HOPEVALLEY | 829J | — | Yes |
| 401-388 | WESTERLY | 7351 | — | Yes |
| 401-389 | PAWTUCKET | 6889 | 2021-09-03 | Yes |
| 401-390 | PROVIDENCE | 5562 | 2008-03-06 | Yes |
| 401-391 | WARWICK | 5562 | 2002-07-30 | Yes |
| 401-392 | COVENTRY | 9102 | — | Yes |
| 401-393 | PROVIDENCE | 9102 | — | — |
| 401-394 | PASCOAG | 6889 | 2021-12-03 | Yes |
| 401-395 | CENTREDALE | 321J | 2021-12-15 | Yes |
| 401-396 | BRISTOL | 318J | — | Yes |
| 401-397 | COVENTRY | 9102 | — | — |
| 401-398 | GREENWICH | 318J | — | Yes |
| 401-399 | NEWPORT | 977E | — | 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.