MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY
64 prefixes in 631 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 631-200 | BAYPORT | 7133 | 2003-12-08 | Yes |
| 631-223 | HUNTINGTON | 7133 | — | Yes |
| 631-228 | SHOREHAM | 7133 | — | Yes |
| 631-229 | AMITYVILLE | 7133 | — | Yes |
| 631-270 | FARMINGDL | 7133 | — | Yes |
| 631-318 | AMAGANSETT | 7133 | 2010-01-27 | Yes |
| 631-326 | COMMACK | 7133 | — | Yes |
| 631-350 | HUNTINGTON | 7133 | — | Yes |
| 631-403 | PTJEFFERSN | 7133 | 2006-08-23 | Yes |
| 631-405 | RIVERHEAD | 7133 | 2011-02-22 | Yes |
| 631-412 | LINDENHST | 7133 | — | Yes |
| 631-418 | HUNTINGTON | 7133 | 2001-05-03 | Yes |
| 631-460 | KINGS PARK | 7133 | — | Yes |
| 631-478 | BRENTWOOD | 7133 | — | Yes |
| 631-481 | ISLIP | 7133 | — | Yes |
| 631-489 | W COMMACK | 7133 | — | Yes |
| 631-510 | MIDLAND | 7133 | — | Yes |
| 631-514 | BRENTWOOD | 7133 | — | Yes |
| 631-528 | KINGS PARK | 7133 | — | Yes |
| 631-533 | CENTRAISLP | 7133 | 2009-02-09 | Yes |
| 631-534 | COLDSPGHBR | 7133 | — | Yes |
| 631-551 | ST JAMES | 7133 | — | Yes |
| 631-576 | PATCHOGUE | 7133 | — | Yes |
| 631-596 | QUOGUE | 7133 | 2006-01-13 | Yes |
| 631-602 | SHELTER IS | 7133 | 2006-02-03 | Yes |
| 631-616 | PECONIC | 7133 | 2006-01-13 | Yes |
| 631-621 | ST JAMES | 7133 | — | Yes |
| 631-628 | NORTHPORT | 7133 | — | Yes |
| 631-637 | BRENTWOOD | 7133 | 2014-04-28 | Yes |
| 631-652 | SMITHTOWN | 7133 | 2014-01-13 | Yes |
| 631-674 | MIDLAND | 7133 | — | Yes |
| 631-677 | SAYVILLE | 7133 | — | Yes |
| 631-678 | BRENTWOOD | 7133 | — | Yes |
| 631-683 | HUNTINGTON | 7133 | — | Yes |
| 631-699 | SAYVILLE | 7133 | — | Yes |
| 631-706 | STONYBROOK | 7133 | — | Yes |
| 631-721 | SELDEN | 7133 | — | Yes |
| 631-739 | RONKONKOMA | 7133 | — | Yes |
| 631-763 | COLDSPGHBR | 7133 | — | Yes |
| 631-769 | SHOREHAM | 7133 | — | Yes |
| 631-770 | FARMINGDL | 7133 | — | Yes |
| 631-778 | CENTRAISLP | 7133 | — | Yes |
| 631-780 | SMITHTOWN | 7133 | — | Yes |
| 631-791 | PTJEFFERSN | 7133 | — | Yes |
| 631-820 | RONKONKOMA | 7133 | — | Yes |
| 631-832 | BAYPORT | 7133 | — | Yes |
| 631-837 | NORTHPORT | 7133 | — | Yes |
| 631-850 | W COMMACK | 7133 | — | Yes |
| 631-857 | COLDSPGHBR | 7133 | — | Yes |
| 631-861 | FARMINGDL | 7133 | — | Yes |
| 631-869 | BELLPORT | 7133 | — | Yes |
| 631-879 | PATCHOGUE | 7133 | — | Yes |
| 631-883 | BAYPORT | 7133 | — | Yes |
| 631-892 | BAY SHORE | 7133 | — | Yes |
| 631-913 | RONKONKOMA | 7133 | — | Yes |
| 631-947 | BELLPORT | 7133 | — | Yes |
| 631-962 | FARMINGDL | 7133 | — | Yes |
| 631-963 | CENTRAISLP | 7133 | — | Yes |
| 631-964 | DEER PARK | 7133 | — | Yes |
| 631-978 | PTJEFFERSN | 7133 | — | Yes |
| 631-982 | SMITHTOWN | 7133 | — | Yes |
| 631-983 | BABYLON | 7133 | — | Yes |
| 631-993 | COMMACK | 7133 | — | Yes |
| 631-995 | YAPHANK | 7133 | — | 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.