All assignees
646 prefixes in 413 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 413-601 | PITTSFIELD | 321J | 2025-07-11 | Yes |
| 413-602 | SPRINGFLD | 700J | 2025-11-25 | Yes |
| 413-603 | NORTHADAMS | 6387 | — | Yes |
| 413-604 | EASTHAMPTN | 892D | — | — |
| 413-605 | CHICOPEE | 6889 | 2026-01-07 | Yes |
| 413-606 | HOLYOKE | 6387 | 2026-06-25 | Yes |
| 413-607 | WILLIAMSTN | 6387 | 2026-08-31 | Yes |
| 413-610 | LUDLOW | 829J | — | Yes |
| 413-611 | XXXXXXXXXX | MULT | — | — |
| 413-612 | CHICOPEE | 829J | — | Yes |
| 413-613 | DALTON | 892D | 2020-05-13 | Yes |
| 413-614 | NORTHAMPTN | 5562 | — | Yes |
| 413-616 | OTIS | 793K | — | Yes |
| 413-617 | — | — | ||
| 413-618 | CONWAY | 829J | — | — |
| 413-622 | GRANVILLE | 829J | — | — |
| 413-623 | BECKET | 9102 | — | Yes |
| 413-624 | COLRAIN | 9102 | — | Yes |
| 413-625 | SHELBUNFLS | 9102 | — | Yes |
| 413-626 | SPRINGFLD | 4036 | — | — |
| 413-627 | SPRINGFLD | 4036 | — | Yes |
| 413-628 | ASHFIELD | 9102 | — | Yes |
| 413-629 | PITTSFIELD | 829J | — | Yes |
| 413-631 | LUDLOW | 7135 | — | Yes |
| 413-633 | SHELBUNFLS | 892D | 2021-03-25 | Yes |
| 413-634 | CUMMINGTON | 9102 | — | Yes |
| 413-636 | SPRINGFLD | 6387 | 2001-01-22 | Yes |
| 413-637 | LENOX | 9102 | — | — |
| 413-638 | HOUSATONIC | 829J | — | — |
| 413-639 | WESTFIELD | 829J | — | — |
| 413-640 | PALMER | 5562 | — | Yes |
| 413-641 | GREENFIELD | 829J | — | Yes |
| 413-642 | WESTFIELD | 829J | 2001-02-27 | Yes |
| 413-643 | GILBERTVL | 829J | — | Yes |
| 413-644 | GREATBNGTN | 9102 | — | Yes |
| 413-645 | GREATBNGTN | 829J | 2001-06-21 | Yes |
| 413-646 | MILLERSFLS | 516J | 2022-03-14 | Yes |
| 413-647 | ELONGMEDOW | 829J | — | — |
| 413-648 | BERNARDSTN | 9102 | — | Yes |
| 413-650 | HOLYOKE | 4018 | 2005-12-23 | Yes |
| 413-652 | NORTHADAMS | 829J | — | Yes |
| 413-653 | HUNTINGTON | 829J | — | — |
| 413-654 | SPRINGFLD | 515J | 2006-03-01 | Yes |
| 413-655 | HINSDALE | 9102 | — | Yes |
| 413-656 | MONTAGUE | 892D | 2021-01-27 | Yes |
| 413-657 | SPRINGFLD | 5562 | 2001-01-10 | Yes |
| 413-658 | AMHERST | 829J | — | Yes |
| 413-659 | MILLERSFLS | 9102 | — | Yes |
| 413-661 | SPRINGFLD | 756G | 2026-07-21 | Yes |
| 413-662 | NORTHADAMS | 9102 | — | Yes |
| 413-663 | NORTHADAMS | 9102 | — | Yes |
| 413-664 | NORTHADAMS | 9102 | — | Yes |
| 413-665 | SO DEERFLD | 9102 | — | — |
| 413-666 | GRANVILLE | 892D | — | Yes |
| 413-667 | HUNTINGTON | 9102 | — | Yes |
| 413-668 | PALMER | 829J | — | Yes |
| 413-669 | HINSDALE | 829J | — | — |
| 413-672 | NORTHADAMS | 7135 | — | Yes |
| 413-673 | GREATBNGTN | 516J | 2022-02-28 | Yes |
| 413-674 | HATFIELD | 829J | — | — |
| 413-675 | WILBRAHAM | 829J | — | Yes |
| 413-676 | TURNERSFLS | 829J | 2006-04-10 | Yes |
| 413-677 | COLRAIN | 829J | — | — |
| 413-678 | XXXXXXXXXX | 9102 | — | — |
| 413-679 | OTIS | 990E | — | Yes |
| 413-682 | WILBRAHAM | 829J | — | Yes |
| 413-683 | CHICOPEE | 829J | — | — |
| 413-684 | DALTON | 9102 | — | Yes |
| 413-685 | HUNTINGTON | 6387 | — | Yes |
| 413-686 | SPRINGFLD | 829J | 2006-07-07 | Yes |
| 413-687 | AMHERST | 829J | — | Yes |
| 413-688 | MONSON | 965H | 2020-07-23 | Yes |
| 413-691 | ASHFIELD | 829J | — | — |
| 413-692 | PITTSFIELD | 829J | — | Yes |
| 413-693 | SPRINGFLD | 829J | — | Yes |
| 413-695 | AMHERST | 4036 | — | — |
| 413-698 | RICHMOND | 0037 | — | — |
| 413-699 | W STOCKBDG | 965H | 2021-04-26 | Yes |
| 413-700 | — | — | ||
| 413-701 | BECKET | 892D | 2020-06-16 | Yes |
| 413-702 | MILLERSFLS | 829J | — | — |
| 413-707 | SPRINGFLD | 892D | 2016-05-17 | Yes |
| 413-711 | XXXXXXXXXX | MULT | — | — |
| 413-712 | SO DEERFLD | 829J | — | Yes |
| 413-713 | TURNERSFLS | 892D | 2021-03-25 | Yes |
| 413-714 | MONSON | 829J | — | — |
| 413-717 | GREATBNGTN | 829J | — | Yes |
| 413-722 | CONWAY | 965H | 2020-07-21 | Yes |
| 413-723 | MONROE BDG | 829J | — | — |
| 413-724 | WILLIAMSBG | 892D | 2021-03-25 | Yes |
| 413-725 | WARE | 829J | — | Yes |
| 413-726 | SPRINGFLD | 829J | — | Yes |
| 413-727 | NORTHAMPTN | 829J | 2001-05-21 | Yes |
| 413-728 | LENOX | 4018 | — | Yes |
| 413-729 | WESTFIELD | 4018 | — | Yes |
| 413-730 | SPRINGFLD | 9102 | — | Yes |
| 413-731 | SPRINGFLD | 9102 | — | — |
| 413-732 | SPRINGFLD | 9102 | — | — |
| 413-733 | SPRINGFLD | 9102 | — | — |
| 413-734 | SPRINGFLD | 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.