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 |
|---|---|---|---|---|---|
| 305-735 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL | 8664 | KEYS | FL | |
| 305-851 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL | 8664 | KEYS | FL | |
| 305-894 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL | 8664 | MIAMI | FL | |
| 305-907 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL | 8664 | NORTH DADE | FL | |
| 305-908 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL | 8664 | MIAMI | FL | |
| 305-909 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL | 8664 | PERRINE | FL | |
| 305-910 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL | 8664 | HOMESTEAD | FL | |
| 305-925 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL | 8664 | MIAMI | FL | |
| 309-313 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL | 7196 | MACOMB | IL | |
| 309-567 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL | 7196 | PEORIA | IL | |
| 309-735 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | BLOOMINGTN | IL | |
| 309-763 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | BLOOMINGTN | IL | |
| 309-766 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | BLOOMINGTN | IL | |
| 309-994 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | BLOOMINGTN | IL | |
| 310-218 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | TORRANCE | CA | |
| 310-220 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | HAWTHORNE | CA | |
| 310-254 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | W ANGELES | CA | |
| 310-300 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | BEVERLYHLS | CA | |
| 310-437 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SNMN MRVS | CA | |
| 310-460 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SNMN SNMN | CA | |
| 310-492 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | BEVERLYHLS | CA | |
| 310-507 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | SAN PEDRO | CA | |
| 310-526 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | SNMN SNMN | CA | |
| 310-579 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | MALIBU | CA | |
| 310-593 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SNMN SNMN | CA | |
| 310-595 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | BEVERLYHLS | CA | |
| 310-602 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LOMITA | CA | |
| 310-693 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | INGLEWOOD | CA | |
| 310-697 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | REDONDO | CA | |
| 310-728 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | BEVERLYHLS | CA | |
| 310-734 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | BEVERLYHLS | CA | |
| 310-735 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | CMTN CMTN | CA | |
| 310-736 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | CULVERCITY | CA | |
| 310-743 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | INGLEWOOD | CA | |
| 310-750 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | REDONDO | CA | |
| 310-751 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | SNMN MRVS | CA | |
| 310-752 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | SNMN SNMN | CA | |
| 310-756 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | CMTN GRDN | CA | |
| 310-760 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | EL SEGUNDO | CA | |
| 310-765 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | EL SEGUNDO | CA | |
| 310-800 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | CMTN GRDN | CA | |
| 310-819 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | CMTN GRDN | CA | |
| 310-844 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | HAWTHORNE | CA | |
| 310-846 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | INGLEWOOD | CA | |
| 310-893 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | W ANGELES | CA | |
| 310-894 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | CMTN CMTN | CA | |
| 310-895 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | CULVERCITY | CA | |
| 310-907 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SNMN SNMN | CA | |
| 310-909 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | W ANGELES | CA | |
| 310-928 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | CMTN CMTN | CA |
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.