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 |
|---|---|---|---|---|---|
| 615-844 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TN | 7977 | NASHVILLE | TN | |
| 615-846 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TN | 7977 | NASHVILLE | TN | |
| 615-850 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TN | 7977 | NASHVILLE | TN | |
| 615-858 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TN | 7977 | NASHVILLE | TN | |
| 616-222 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7157 | GRAND RPDS | MI | |
| 616-224 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7157 | GRAND RPDS | MI | |
| 616-254 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7157 | GRAND RPDS | MI | |
| 616-284 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7157 | GRAND RPDS | MI | |
| 616-359 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7157 | DORR | MI | |
| 616-366 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7157 | BYRON CTR | MI | |
| 616-371 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7157 | JAMESTOWN | MI | |
| 616-379 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7157 | HUDSONVL | MI | |
| 616-421 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7157 | LOWELL | MI | |
| 616-425 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7157 | ADA | MI | |
| 616-431 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7157 | MARNE | MI | |
| 616-433 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7157 | ROCKFORD | MI | |
| 616-482 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7157 | GRAND RPDS | MI | |
| 616-493 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7157 | GRAND RPDS | MI | |
| 616-520 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7157 | SPARTA | MI | |
| 616-524 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7157 | GRATTAN | MI | |
| 616-528 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7157 | CALEDONIA | MI | |
| 616-541 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7157 | DUTTON | MI | |
| 616-559 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7157 | GRAND RPDS | MI | |
| 616-574 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7157 | GRAND RPDS | MI | |
| 616-622 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7157 | ALTO | MI | |
| 616-631 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7157 | MOLINE | MI | |
| 616-741 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7157 | ZEELAND | MI | |
| 616-820 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7157 | HOLLAND | MI | |
| 616-831 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7157 | GRAND RPDS | MI | |
| 617-203 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | EVERETT | MA | |
| 617-206 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | BRIGHTON | MA | |
| 617-208 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | BRIGHTON | MA | |
| 617-229 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | CAMBRIDGE | MA | |
| 617-238 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | ROXBURY | MA | |
| 617-249 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | QUINCY | MA | |
| 617-279 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | BOSTON | MA | |
| 617-299 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | CAMBRIDGE | MA | |
| 617-315 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SO BOSTON | MA | |
| 617-326 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DORCHESTER | MA | |
| 617-344 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | JAMAICA PL | MA | |
| 617-370 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | CHELSEA | MA | |
| 617-390 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | JAMAICA PL | MA | |
| 617-399 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | BOSTON | MA | |
| 617-405 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | QUINCY | MA | |
| 617-415 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | BRIGHTON | MA | |
| 617-418 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | EASTBOSTON | MA | |
| 617-420 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | EVERETT | MA | |
| 617-446 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DORCHESTER | MA | |
| 617-449 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | BOSTON | MA | |
| 617-475 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | CAMBRIDGE | MA |
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.