MCIMETRO ACCESS TRANSMISSION SERVICES LLC
46 prefixes in 240 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 240-206 | WSNG236Z14 | 7229 | — | Yes |
| 240-223 | WSHNGTNZN2 | 7229 | — | Yes |
| 240-243 | GAITHERSBG | 7229 | — | Yes |
| 240-247 | WSHNGTNZN3 | 7229 | — | Yes |
| 240-260 | WSNG236Z14 | 7229 | — | Yes |
| 240-268 | WSNGTNZN10 | 7229 | — | Yes |
| 240-290 | WSNGTNZN11 | 7229 | — | Yes |
| 240-294 | LAUREL236 | 7229 | — | Yes |
| 240-306 | GAITHERSBG | 7229 | — | Yes |
| 240-399 | WSNGTNZN10 | 7229 | — | — |
| 240-402 | WSNG236Z13 | 7229 | 2010-09-21 | Yes |
| 240-404 | GAITHERSBG | 7229 | 2001-02-13 | Yes |
| 240-427 | WALDORF | 7229 | 2001-04-23 | Yes |
| 240-437 | ASHTON236 | 7229 | — | Yes |
| 240-489 | POOLESVL | 7229 | 2001-02-13 | Yes |
| 240-510 | WSNG236Z15 | 7229 | — | Yes |
| 240-523 | LA PLATA | 7229 | 2001-02-13 | Yes |
| 240-538 | LEONARDTN | 7229 | 2001-02-13 | Yes |
| 240-553 | WSNG236Z13 | 7229 | — | Yes |
| 240-554 | LAUREL236 | 7229 | — | Yes |
| 240-559 | ASHTON236 | 7229 | — | Yes |
| 240-560 | WSNGTNZN12 | 7229 | 2001-04-23 | Yes |
| 240-562 | GAITHERSBG | 7229 | 2015-06-12 | Yes |
| 240-588 | GRANTSVL | 7229 | 2018-02-01 | Yes |
| 240-616 | WSNG236Z13 | 7229 | — | Yes |
| 240-620 | WSNGTNZN10 | 7229 | — | Yes |
| 240-644 | WSHNGTNZN2 | 7229 | — | Yes |
| 240-645 | WSHNGTNZN3 | 7229 | — | Yes |
| 240-652 | MECHANCSVL | 7229 | 2001-02-13 | Yes |
| 240-677 | WSHNGTNZN5 | 7229 | 2019-05-20 | Yes |
| 240-718 | LXTNPKGRML | 7229 | 2001-02-13 | Yes |
| 240-745 | DAMASCS236 | 7229 | — | Yes |
| 240-764 | WSHNGTNZN4 | 7229 | — | Yes |
| 240-765 | WSHNGTNZN5 | 7229 | — | Yes |
| 240-766 | WSHNGTNZN6 | 7229 | — | Yes |
| 240-778 | WSNGTNZN10 | 7229 | — | Yes |
| 240-781 | WSHNGTNZN2 | 7229 | 2015-08-18 | Yes |
| 240-823 | BRANDYWINE | 7229 | 2001-02-13 | Yes |
| 240-833 | WSNGTNZN11 | 7229 | — | Yes |
| 240-837 | HUGHESVL | 7229 | 2001-02-13 | Yes |
| 240-841 | LAUREL238 | 7229 | — | Yes |
| 240-842 | WSNG238Z14 | 7229 | — | Yes |
| 240-843 | WSNG238Z13 | 7229 | — | Yes |
| 240-845 | WSNG236Z13 | 7229 | — | Yes |
| 240-846 | WSNGTNZN16 | 7229 | — | Yes |
| 240-993 | INDIANHEAD | 7229 | 2001-02-13 | 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.