All assignees
629 prefixes in 401 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 401-615 | W WARWICK | 318J | — | Yes |
| 401-616 | PAWTUCKET | 829J | 2001-10-08 | Yes |
| 401-617 | PAWTUCKET | 5562 | 2002-07-30 | Yes |
| 401-618 | CENTREDALE | 977E | 2016-02-24 | Yes |
| 401-619 | NEWPORT | 318J | — | Yes |
| 401-620 | WESTERLY | 977E | — | Yes |
| 401-621 | PROVIDENCE | 9102 | — | Yes |
| 401-622 | WESTERLY | 4016 | — | Yes |
| 401-623 | COVENTRY | 5562 | 2001-04-11 | Yes |
| 401-624 | TIVERTON | 9102 | — | Yes |
| 401-625 | TIVERTON | 9102 | — | Yes |
| 401-626 | PROVIDENCE | 4016 | 2006-01-03 | Yes |
| 401-628 | WARREN | 829J | — | Yes |
| 401-632 | PROVIDENCE | 318J | — | Yes |
| 401-633 | PROVIDENCE | 829J | — | Yes |
| 401-635 | LTLCOMPTON | 9102 | — | Yes |
| 401-636 | WOONSOCKET | 4036 | — | Yes |
| 401-637 | WESTERLY | 318J | — | Yes |
| 401-638 | BRISTOL | 977E | — | — |
| 401-639 | PROVIDENCE | 5562 | — | Yes |
| 401-640 | PROVIDENCE | 5562 | — | Yes |
| 401-641 | PROVIDENCE | 5562 | — | Yes |
| 401-642 | PAWTUCKET | 7229 | — | Yes |
| 401-643 | PORTSMOUTH | 829J | — | Yes |
| 401-644 | PROVIDENCE | 6389 | 2006-10-17 | Yes |
| 401-645 | HOPEVALLEY | 7351 | 2001-01-16 | Yes |
| 401-646 | HOPEVALLEY | 4016 | — | Yes |
| 401-647 | SCITUATE | 9102 | — | Yes |
| 401-648 | PROVIDENCE | 4016 | — | Yes |
| 401-649 | PROVIDENCE | 6389 | 2008-05-09 | Yes |
| 401-651 | WOONSOCKET | 4036 | — | — |
| 401-652 | WOONSOCKET | 7351 | — | Yes |
| 401-654 | PROVIDENCE | 4036 | 2006-04-28 | Yes |
| 401-655 | BRISTOL | 4016 | — | Yes |
| 401-656 | WESTERLY | 829J | — | Yes |
| 401-658 | CUMBLND HL | 9102 | — | Yes |
| 401-659 | CUMBLND HL | 829J | — | Yes |
| 401-660 | CUMBLND HL | 6889 | — | Yes |
| 401-661 | NARRAGNSTT | 7229 | — | Yes |
| 401-662 | NEWPORT | 6889 | — | Yes |
| 401-663 | PAWTUCKET | 6889 | — | — |
| 401-665 | WOONSOCKET | 9102 | 2001-06-11 | — |
| 401-666 | CUMBLND HL | 631G | 2016-04-06 | Yes |
| 401-667 | NO KINGSTN | 318J | — | Yes |
| 401-671 | WOONSOCKET | 829J | — | Yes |
| 401-675 | NARRAGNSTT | 829J | — | Yes |
| 401-677 | HOPEVALLEY | 6889 | — | Yes |
| 401-678 | PASCOAG | 6889 | — | Yes |
| 401-679 | PROVIDENCE | 829J | — | Yes |
| 401-680 | PROVIDENCE | 003F | 2008-05-27 | Yes |
| 401-681 | WARWICK | 829J | — | Yes |
| 401-682 | PORTSMOUTH | 9102 | — | Yes |
| 401-683 | PORTSMOUTH | 9102 | — | Yes |
| 401-684 | JAMESTOWN | 4016 | — | Yes |
| 401-685 | TIVERTON | 4016 | — | Yes |
| 401-688 | PROVIDENCE | 4036 | 2006-08-22 | Yes |
| 401-691 | WARWICK | 829J | — | Yes |
| 401-692 | CUMBLND HL | 6889 | 2001-04-11 | Yes |
| 401-694 | WARREN | 829J | 2001-03-28 | Yes |
| 401-696 | PROVIDENCE | 829J | — | Yes |
| 401-699 | PROVIDENCE | 829J | 2003-07-22 | Yes |
| 401-700 | XXXXXXXXXX | MULT | — | — |
| 401-702 | COVENTRY | 4016 | — | Yes |
| 401-709 | PROVIDENCE | 829J | — | — |
| 401-710 | PASCOAG | 318J | — | Yes |
| 401-711 | XXXXXXXXXX | MULT | — | — |
| 401-712 | PROVIDENCE | 829J | — | Yes |
| 401-714 | PROVIDENCE | 318J | — | Yes |
| 401-715 | GREENWICH | 977E | — | — |
| 401-719 | CENTREDALE | 829J | — | Yes |
| 401-721 | PAWTUCKET | 9102 | — | Yes |
| 401-722 | PAWTUCKET | 9102 | — | — |
| 401-723 | PAWTUCKET | 9102 | — | — |
| 401-724 | PAWTUCKET | 9102 | — | — |
| 401-725 | PAWTUCKET | 9102 | — | — |
| 401-726 | PAWTUCKET | 9102 | — | — |
| 401-727 | PAWTUCKET | 9102 | — | — |
| 401-728 | PAWTUCKET | 9102 | — | — |
| 401-729 | PAWTUCKET | 9102 | — | — |
| 401-732 | WARWICK | 9102 | — | — |
| 401-733 | WOONSOCKET | 7351 | 2001-06-18 | Yes |
| 401-734 | WARWICK | 9102 | — | Yes |
| 401-735 | PROVIDENCE | 977E | — | Yes |
| 401-736 | WARWICK | 9102 | — | — |
| 401-737 | WARWICK | 9102 | — | — |
| 401-738 | WARWICK | 9102 | — | — |
| 401-739 | WARWICK | 9102 | — | — |
| 401-740 | HOPEVALLEY | 977E | — | — |
| 401-741 | PROVIDENCE | 6389 | — | — |
| 401-742 | PROVIDENCE | 6389 | — | — |
| 401-743 | PROVIDENCE | 4036 | — | — |
| 401-744 | CUMBLND HL | 6889 | — | Yes |
| 401-745 | PROVIDENCE | 9102 | — | — |
| 401-746 | CAROLINA | 516J | 2021-04-20 | Yes |
| 401-749 | PROVIDENCE | 4036 | — | — |
| 401-751 | PROVIDENCE | 9102 | — | — |
| 401-752 | PROVIDENCE | 9102 | — | Yes |
| 401-753 | PAWTUCKET | 318J | — | Yes |
| 401-754 | PROVIDENCE | 9102 | — | — |
| 401-756 | JAMESTOWN | 977E | — | — |
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.