NumberResearchRecent prefix assignments
0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/18/2026
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 |
|---|---|---|---|---|---|
| 925-983 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | BSHP RNCH | CA | |
| 931-233 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TN | 7977 | CLARKSVL | TN | |
| 937-284 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7836 | SPRINGFLD | OH | |
| 937-514 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7836 | FRANKLIN | OH | |
| 949-200 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | NEWPORTBCH | CA | |
| 949-231 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | IRVINE | CA | |
| 949-257 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | CAPITRNVLY | CA | |
| 949-258 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | NEWPORTBCH | CA | |
| 949-264 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | TRABUCO | CA | |
| 949-296 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | IRVINE | CA | |
| 949-325 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | CAPITRNVLY | CA | |
| 949-329 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | TRABUCO | CA | |
| 949-334 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SADLBK VLY | CA | |
| 949-335 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | NEWPORTBCH | CA | |
| 949-417 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | IRVINE | CA | |
| 949-419 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | IRVINE | CA | |
| 949-420 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SADLBK VLY | CA | |
| 949-421 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SADLBK VLY | CA | |
| 949-423 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | NEWPORTBCH | CA | |
| 949-424 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LAGUNA BCH | CA | |
| 949-435 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | IRVINE | CA | |
| 949-485 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | CAPITRNVLY | CA | |
| 949-610 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | NEWPORTBCH | CA | |
| 949-614 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | SADLBK VLY | CA | |
| 949-885 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | IRVINE | CA | |
| 949-930 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | IRVINE | CA | |
| 949-988 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | IRVINE | CA | |
| 951-329 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | RIVERSIDE | CA | |
| 951-479 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | CORONA | CA | |
| 952-216 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | TWINCITIES | MN | |
| 952-241 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | TWINCITIES | MN | |
| 952-255 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | TWINCITIES | MN | |
| 952-356 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | TWINCITIES | MN | |
| 952-358 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | TWINCITIES | MN | |
| 952-400 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | TWINCITIES | MN | |
| 952-562 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | TWINCITIES | MN | |
| 952-563 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | TWINCITIES | MN | |
| 952-564 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | TWINCITIES | MN | |
| 952-594 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | TWINCITIES | MN | |
| 952-653 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | TWINCITIES | MN | |
| 952-693 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MN | 7783 | TWINCITIES | MN | |
| 952-807 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | TWINCITIES | MN | |
| 952-843 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | TWINCITIES | MN | |
| 952-852 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MN | 7783 | TWINCITIES | MN | |
| 954-233 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL | 8664 | FTLAUDERDL | FL | |
| 954-281 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL | 8664 | DEERFLDBCH | FL | |
| 954-282 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL | 8664 | CORAL SPG | FL | |
| 954-283 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL | 8664 | POMPANOBCH | FL | |
| 954-301 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL | 8664 | POMPANOBCH | FL | |
| 954-323 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL | 8664 | CORAL SPG | FL |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/18/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.