All assignees
800 prefixes in 508 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 508-600 | HYANNIS | 4036 | 2026-08-20 | Yes |
| 508-601 | — | — | ||
| 508-602 | — | — | ||
| 508-603 | UPTON | 4018 | 2002-06-27 | Yes |
| 508-604 | — | — | ||
| 508-605 | — | — | ||
| 508-606 | — | — | ||
| 508-607 | — | — | ||
| 508-608 | — | — | ||
| 508-609 | — | — | ||
| 508-610 | — | — | ||
| 508-611 | XXXXXXXXXX | MULT | — | — |
| 508-612 | WORCESTER | 6387 | — | — |
| 508-613 | FRANKLIN | 4018 | — | Yes |
| 508-614 | WESTBORO | 7421 | — | Yes |
| 508-615 | WORCESTER | 6889 | — | — |
| 508-616 | WESTBORO | 9102 | — | — |
| 508-617 | FALL RIVER | 4036 | 2002-07-18 | Yes |
| 508-618 | MANSFIELD | 7229 | — | Yes |
| 508-619 | DENNIS | 4018 | — | Yes |
| 508-620 | FRAMINGHAM | 9102 | — | — |
| 508-621 | WESTBORO | 7135 | — | Yes |
| 508-622 | NORTON | 318J | — | Yes |
| 508-623 | FOXBORO | 829J | — | Yes |
| 508-624 | MARLBORO | 9102 | — | — |
| 508-625 | HOPKINTON | 318J | — | Yes |
| 508-626 | FRAMINGHAM | 9102 | — | — |
| 508-627 | EDGARTOWN | 9102 | — | Yes |
| 508-628 | FRAMINGHAM | 9102 | — | — |
| 508-629 | VINEYRDHVN | 7229 | — | Yes |
| 508-630 | MARLBORO | 4018 | — | Yes |
| 508-631 | BROCKTON | 4036 | — | — |
| 508-632 | HARWICH | 7229 | — | Yes |
| 508-633 | LAWRENCE | 4036 | — | — |
| 508-634 | MILFORD | 9102 | — | — |
| 508-635 | WORCESTER | 4018 | — | Yes |
| 508-636 | WESTPORT | 9102 | — | — |
| 508-637 | NOBROOKFLD | 7229 | 2002-06-04 | Yes |
| 508-638 | BROCKTON | 829J | — | Yes |
| 508-639 | SOUTHGATE | 829J | — | Yes |
| 508-640 | WEBSTER | 829J | — | Yes |
| 508-641 | WALPOLE | 6387 | — | — |
| 508-642 | FALL RIVER | 4036 | — | — |
| 508-643 | NO ATTLEBO | 9102 | — | Yes |
| 508-644 | ASSONET | 9102 | — | Yes |
| 508-645 | CHILMARK | 9102 | — | Yes |
| 508-646 | FALL RIVER | 9102 | — | Yes |
| 508-647 | NATICK | 9102 | — | — |
| 508-648 | OSTERVILLE | 4036 | — | — |
| 508-649 | BROCKTON | 4036 | 2006-06-20 | Yes |
| 508-650 | NATICK | 9102 | — | Yes |
| 508-651 | NATICK | 9102 | — | Yes |
| 508-652 | NATICK | 9102 | — | Yes |
| 508-653 | NATICK | 9102 | — | — |
| 508-654 | NATICK | 4036 | — | — |
| 508-655 | NATICK | 9102 | — | — |
| 508-656 | FRAMINGHAM | 829J | 2001-02-16 | Yes |
| 508-657 | BELLINGHAM | 318J | — | Yes |
| 508-658 | MARLBORO | 892D | — | Yes |
| 508-659 | BRIDGEWTR | 829J | 2002-07-03 | Yes |
| 508-660 | WALPOLE | 9102 | — | — |
| 508-661 | FRAMINGHAM | 9102 | — | Yes |
| 508-662 | LAWRENCE | 4036 | — | — |
| 508-663 | FRAMINGHAM | 7229 | — | Yes |
| 508-664 | WELLFLEET | 7229 | — | Yes |
| 508-665 | FRAMINGHAM | 829J | — | Yes |
| 508-666 | ORLEANS | 6083 | — | — |
| 508-667 | WORCESTER | 4036 | — | — |
| 508-668 | WALPOLE | 9102 | — | — |
| 508-669 | DIGHTON | 9102 | — | Yes |
| 508-670 | EDGARTOWN | 6083 | — | — |
| 508-671 | WEBSTER | 9102 | — | Yes |
| 508-672 | FALL RIVER | 9102 | — | — |
| 508-673 | FALL RIVER | 9102 | — | — |
| 508-674 | FALL RIVER | 9102 | — | — |
| 508-675 | FALL RIVER | 9102 | — | — |
| 508-676 | FALL RIVER | 9102 | — | — |
| 508-677 | FALL RIVER | 9102 | — | Yes |
| 508-678 | FALL RIVER | 9102 | — | — |
| 508-679 | FALL RIVER | 9102 | — | — |
| 508-680 | NANTUCKET | 6387 | — | Yes |
| 508-681 | OSTERVILLE | 8468 | 2006-07-21 | Yes |
| 508-682 | EASTON | 4018 | — | Yes |
| 508-683 | MARLBORO | 829J | 2001-02-16 | Yes |
| 508-684 | VINEYRDHVN | 829J | — | Yes |
| 508-685 | BARNSTABLE | 6889 | — | Yes |
| 508-686 | HOPKINTON | 4018 | 2001-02-16 | Yes |
| 508-687 | VINEYRDHVN | 892D | — | Yes |
| 508-688 | WORCESTER | 7135 | — | Yes |
| 508-689 | FALL RIVER | 7135 | — | Yes |
| 508-690 | EBRIDGEWTR | 9102 | — | Yes |
| 508-691 | NORTHBORO | 7229 | — | Yes |
| 508-692 | TAUNTON | 4018 | — | Yes |
| 508-693 | VINEYRDHVN | 9102 | — | — |
| 508-694 | DENNIS | 892D | — | Yes |
| 508-695 | NO ATTLEBO | 9102 | — | — |
| 508-696 | VINEYRDHVN | 9102 | — | Yes |
| 508-697 | BRIDGEWTR | 9102 | — | — |
| 508-698 | FOXBORO | 9102 | — | — |
| 508-699 | NO ATTLEBO | 9102 | — | — |
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.