NumberResearchRecent prefix assignments
0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 2026-04
Which carriers received which NPA-NXX prefixes, and where. Assignments are initial assignments from NANPA records — because of number portability, the current serving carrier of individual numbers may differ. For finer-grained activity, see the thousands-block view above.
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| Assigned | NPA-NXX | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 202-969 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | WSHNGTNZN1 | DC | |
| 203-293 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT | 7230 | WESTPORT | CT | |
| 203-295 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT | 7230 | NORWALK | CT | |
| 203-296 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT | 7230 | BRIDGEPORT | CT | |
| 203-297 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT | 7230 | DANBURY | CT | |
| 203-388 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT | 7230 | STAMFORD | CT | |
| 203-391 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT | 7230 | STAMFORD | CT | |
| 203-399 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT | 7230 | STAMFORD | CT | |
| 203-427 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | MERIDEN | CT | |
| 203-428 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT | 7230 | STAMFORD | CT | |
| 203-429 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT | 7230 | WESTPORT | CT | |
| 203-437 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | WATERBURY | CT | |
| 203-443 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | MERIDEN | CT | |
| 203-448 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT | 7230 | DANBURY | CT | |
| 203-455 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT | 7230 | BRIDGEPORT | CT | |
| 203-480 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT | 7230 | FAIRFIELD | CT | |
| 203-642 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT | 7230 | NORWALK | CT | |
| 203-705 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT | 7230 | STAMFORD | CT | |
| 203-719 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT | 7230 | STAMFORD | CT | |
| 203-818 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT | 7230 | NORWALK | CT | |
| 203-859 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | NEW HAVEN | CT | |
| 203-923 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT | 7230 | BRIDGEPORT | CT | |
| 205-564 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - AL | 7469 | ALABASTER | AL | |
| 205-565 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | BESSEMER | AL | |
| 205-986 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - AL | 7469 | BIRMINGHAM | AL | |
| 206-267 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SEATTLE | WA | |
| 206-315 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SEATTLE | WA | |
| 206-319 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | BAINBDG IS | WA | |
| 206-336 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SEATTLE | WA | |
| 206-357 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SEATTLE | WA | |
| 206-407 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SEATTLE | WA | |
| 206-408 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | VASHON | WA | |
| 206-428 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SEATTLE | WA | |
| 206-429 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DES MOINES | WA | |
| 206-438 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SEATTLE | WA | |
| 206-494 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SEATTLE | WA | |
| 206-607 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SEATTLE | WA | |
| 206-701 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SEATTLE | WA | |
| 206-708 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SEATTLE | WA | |
| 206-777 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SEATTLE | WA | |
| 206-801 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | RICHMNDBCH | WA | |
| 206-802 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - WA | 7274 | SEATTLE | WA | |
| 206-826 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SEATTLE | WA | |
| 206-832 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SEATTLE | WA | |
| 206-877 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SEATTLE | WA | |
| 206-902 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SEATTLE | WA | |
| 206-905 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SEATTLE | WA | |
| 206-926 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - WA | 7274 | SEATTLE | WA | |
| 207-228 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - ME | 7777 | PORTLAND | ME | |
| 207-239 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - ME | 7777 | PORTLAND | ME |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 2026-04 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.