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 |
|---|---|---|---|---|---|
| 650-449 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SNFC JUNPR | CA | |
| 650-469 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LOS ALTOS | CA | |
| 650-475 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PALO ALTO | CA | |
| 650-480 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | REDWOOD CY | CA | |
| 650-481 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | REDWOOD CY | CA | |
| 650-534 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SSNFRNCSCO | CA | |
| 650-549 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | REDWOOD CY | CA | |
| 650-605 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | MT VIEW | CA | |
| 650-628 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SNCRL-BLMT | CA | |
| 650-636 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SSNFRNCSCO | CA | |
| 650-648 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | MILLBRAE | CA | |
| 650-651 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | MILLBRAE | CA | |
| 650-653 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | SAN MATEO | CA | |
| 650-686 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | MILLBRAE | CA | |
| 650-687 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | PALO ALTO | CA | |
| 650-713 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | HALFMOONBY | CA | |
| 650-716 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | REDWOOD CY | CA | |
| 650-719 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | MOSS BEACH | CA | |
| 650-720 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | HALFMOONBY | CA | |
| 650-733 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | PACIFICA | CA | |
| 650-749 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LA HONDA | CA | |
| 650-769 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SNCRL-BLMT | CA | |
| 650-795 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LA HONDA | CA | |
| 650-815 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PALO ALTO | CA | |
| 650-825 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SSNFRNCSCO | CA | |
| 650-847 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PALO ALTO | CA | |
| 650-850 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | WOODSIDE | CA | |
| 650-930 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | MT VIEW | CA | |
| 650-935 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LOS ALTOS | CA | |
| 650-980 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | REDWOOD CY | CA | |
| 651-203 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | TWINCITIES | MN | |
| 651-233 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | TWINCITIES | MN | |
| 651-234 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | TWINCITIES | MN | |
| 651-236 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | TWINCITIES | MN | |
| 651-239 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MN | 7783 | TWINCITIES | MN | |
| 651-355 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | TWINCITIES | MN | |
| 651-389 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | TWINCITIES | MN | |
| 651-468 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MN | 7783 | TWINCITIES | MN | |
| 651-528 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MN | 7783 | TWINCITIES | MN | |
| 651-605 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | TWINCITIES | MN | |
| 651-691 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | STCROIXBCH | MN | |
| 651-705 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | STILLWATER | MN | |
| 651-855 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MN | 7783 | TWINCITIES | MN | |
| 661-219 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | SNCA NHCS | CA | |
| 661-281 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7128 | BKFD MAIN | CA | |
| 661-282 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7128 | BKFD SOUTH | CA | |
| 661-283 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | BKFD MAIN | CA | |
| 661-309 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | SNCA SGCC | CA | |
| 661-316 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7128 | BKFD MAIN | CA | |
| 662-470 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | MEMPHIS | MS |
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.