All assignees
799 prefixes in 860 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 860-600 | LITCHFIELD | 199F | 2016-06-21 | Yes |
| 860-601 | TORRINGTON | 5562 | — | Yes |
| 860-602 | WINDSOR | 7143 | — | Yes |
| 860-603 | COLCHESTER | 318J | 2012-04-27 | Yes |
| 860-604 | HARTFORD | 6388 | — | — |
| 860-605 | HARWINTON | 7143 | — | Yes |
| 860-606 | FARMINGTON | 829J | — | Yes |
| 860-607 | WINDSOR | 9147 | — | Yes |
| 860-608 | NORWICH | 6388 | — | — |
| 860-609 | SOUTHINGTN | 7143 | — | Yes |
| 860-610 | HARTFORD | 9147 | — | Yes |
| 860-611 | XXXXXXXXXX | MULT | — | — |
| 860-612 | NEWBRITAIN | 9147 | — | Yes |
| 860-613 | MIDDLETOWN | 9147 | — | Yes |
| 860-614 | HARTFORD | 6388 | — | — |
| 860-615 | MOODUS | 7143 | — | Yes |
| 860-616 | HARTFORD | 7229 | — | Yes |
| 860-617 | WILLIMNTIC | 4036 | — | — |
| 860-618 | TORRINGTON | 7229 | — | Yes |
| 860-619 | WASHINGTON | 7143 | — | Yes |
| 860-620 | SOUTHINGTN | 9147 | — | Yes |
| 860-621 | SOUTHINGTN | 9147 | — | — |
| 860-622 | HARTFORD | 9147 | — | Yes |
| 860-623 | WINDSORLKS | 9147 | — | — |
| 860-624 | WINDSOR | 9147 | 2008-01-15 | Yes |
| 860-625 | NEW LONDON | 6624 | — | Yes |
| 860-626 | TORRINGTON | 9147 | — | Yes |
| 860-627 | WINDSORLKS | 9147 | — | — |
| 860-628 | SOUTHINGTN | 9147 | — | Yes |
| 860-629 | NEW LONDON | 9147 | — | Yes |
| 860-630 | PUTNAM | 7143 | — | Yes |
| 860-631 | WATERTOWN | 829J | — | Yes |
| 860-632 | MIDDLETOWN | 9147 | — | — |
| 860-633 | GLASTONBY | 9147 | — | — |
| 860-634 | WILLIMNTIC | 6624 | — | Yes |
| 860-635 | MIDDLETOWN | 9147 | — | — |
| 860-636 | MIDDLETOWN | 9147 | — | — |
| 860-637 | SOUTHINGTN | 5562 | — | Yes |
| 860-638 | MIDDLETOWN | 9147 | — | Yes |
| 860-639 | NORWICH | 829J | — | Yes |
| 860-640 | WINDSOR | 829J | — | Yes |
| 860-641 | BRISTOL | 9147 | — | — |
| 860-642 | LEBANON | 9147 | — | Yes |
| 860-643 | MANCHESTER | 9147 | — | — |
| 860-644 | MANCHESTER | 9147 | — | — |
| 860-645 | MANCHESTER | 9147 | — | — |
| 860-646 | MANCHESTER | 9147 | — | — |
| 860-647 | MANCHESTER | 9147 | — | — |
| 860-648 | MANCHESTER | 9147 | — | Yes |
| 860-649 | MANCHESTER | 9147 | — | — |
| 860-650 | PAWCATUCK | 199F | 2014-06-26 | Yes |
| 860-651 | SIMSBURY | 9147 | — | — |
| 860-652 | GLASTONBY | 9147 | — | Yes |
| 860-653 | SIMSBURY | 9147 | — | — |
| 860-654 | WINDSORLKS | 9147 | — | — |
| 860-655 | HARTFORD | 5562 | — | Yes |
| 860-656 | HARTFORD | 829J | — | Yes |
| 860-657 | GLASTONBY | 9147 | — | Yes |
| 860-658 | SIMSBURY | 9147 | — | — |
| 860-659 | GLASTONBY | 9147 | — | Yes |
| 860-660 | HARTFORD | 9147 | — | — |
| 860-661 | OLD SAYBRK | 4800 | — | Yes |
| 860-662 | ESSEX | 5562 | — | Yes |
| 860-663 | KILLINGWTH | 9147 | — | Yes |
| 860-664 | CLINTON | 9147 | — | Yes |
| 860-665 | HARTFORD | 9147 | — | — |
| 860-666 | HARTFORD | 9147 | — | — |
| 860-667 | HARTFORD | 9147 | — | — |
| 860-668 | WINDSORLKS | 9147 | — | — |
| 860-669 | CLINTON | 9147 | — | — |
| 860-670 | HARTFORD | 6388 | — | — |
| 860-671 | CORNWALL | 4036 | — | Yes |
| 860-672 | CORNWALL | 9147 | — | Yes |
| 860-673 | FARMINGTON | 9147 | — | — |
| 860-674 | FARMINGTON | 9147 | — | — |
| 860-675 | FARMINGTON | 9147 | — | — |
| 860-676 | FARMINGTON | 9147 | — | — |
| 860-677 | FARMINGTON | 9147 | — | — |
| 860-678 | FARMINGTON | 9147 | — | — |
| 860-679 | FARMINGTON | 9147 | — | — |
| 860-680 | HARTFORD | 5562 | — | Yes |
| 860-681 | SOUTHINGTN | 9147 | — | Yes |
| 860-682 | GLASTONBY | 9147 | — | Yes |
| 860-683 | WINDSOR | 9147 | — | — |
| 860-684 | STAFFD SPG | 9147 | — | — |
| 860-685 | MIDDLETOWN | 9147 | — | Yes |
| 860-686 | NEW LONDON | 9147 | — | — |
| 860-687 | WINDSOR | 9147 | — | — |
| 860-688 | WINDSOR | 9147 | — | — |
| 860-689 | HARWINTON | 9147 | — | Yes |
| 860-690 | HARTFORD | 4036 | — | — |
| 860-691 | NIANTIC | 9147 | — | Yes |
| 860-692 | HARTFORD | 9147 | — | Yes |
| 860-693 | CANTON | 9147 | — | — |
| 860-694 | NEW LONDON | 9147 | — | Yes |
| 860-695 | HARTFORD | 9147 | — | — |
| 860-696 | HARTFORD | 9147 | — | — |
| 860-697 | WINDSOR | 829J | — | Yes |
| 860-698 | ENFIELD | 318J | — | Yes |
| 860-699 | LEDYARD | 199F | 2021-11-22 | 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.