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 |
|---|---|---|---|---|---|
| 414-944 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | MILWAUKZN1 | WI | |
| 415-228 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SNFC CNTRL | CA | |
| 415-275 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SAUSALITO | CA | |
| 415-295 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SAN RAFAEL | CA | |
| 415-306 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SAN RAFAEL | CA | |
| 415-360 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | MILLVALLEY | CA | |
| 415-367 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SAUSALITO | CA | |
| 415-368 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SNFC MT-EV | CA | |
| 415-448 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SAN RAFAEL | CA | |
| 415-466 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SNFC JUNPR | CA | |
| 415-490 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SNFC CNTRL | CA | |
| 415-494 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SNFC JUNPR | CA | |
| 415-592 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SNFC MT-EV | CA | |
| 415-593 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SNFC CNTRL | CA | |
| 415-594 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SNFC JUNPR | CA | |
| 415-630 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | NICASIO | CA | |
| 415-633 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SNFC CNTRL | CA | |
| 415-645 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SNFC CNTRL | CA | |
| 415-667 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SNFC CNTRL | CA | |
| 415-683 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SNFC MT-EV | CA | |
| 415-737 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | CORTEMADRA | CA | |
| 415-783 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SNFC CNTRL | CA | |
| 415-796 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SNFC CNTRL | CA | |
| 415-842 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | IGNACIO | CA | |
| 415-843 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | MILLVALLEY | CA | |
| 415-844 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SNFC CNTRL | CA | |
| 415-862 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | STNSN-BLNS | CA | |
| 415-881 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | IGNACIO | CA | |
| 415-886 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | CORTEMADRA | CA | |
| 415-890 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SNFC JUNPR | CA | |
| 415-895 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | NOVATO | CA | |
| 415-901 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SNFC CNTRL | CA | |
| 415-913 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SNFC CNTRL | CA | |
| 415-946 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SNFC CNTRL | CA | |
| 415-962 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SNFC CNTRL | CA | |
| 415-963 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | SNFC CNTRL | CA | |
| 417-520 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO | 7594 | SPRINGFLD | MO | |
| 417-521 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO | 7594 | SPRINGFLD | MO | |
| 417-522 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO | 7594 | SPRINGFLD | MO | |
| 417-523 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO | 7594 | SPRINGFLD | MO | |
| 419-324 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7158 | TOLEDO | OH | |
| 419-481 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7158 | TOLEDO | OH | |
| 419-581 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7158 | FINDLAY | OH | |
| 419-740 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7158 | MAUMEE | OH | |
| 425-201 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | BELLEVUE | WA | |
| 425-202 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | KIRKLAND | WA | |
| 425-216 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - WA | 7274 | KIRKLAND | WA | |
| 425-245 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | HALLS LAKE | WA | |
| 425-249 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | EVERETT | WA | |
| 425-272 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | RENTON | WA |
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.