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 |
|---|---|---|---|---|---|
| 2003-11-07 | 518-788 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7650 | ALBANY | NY |
| 2003-11-06 | 910-933 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | LONG BEACH | NC |
| 2003-11-05 | 910-388 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | JACKSONVL | NC |
| 2003-10-31 | 785-338 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - KS | 7593 | TOPEKA | KS |
| 2003-10-30 | 574-309 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IN | 7440 | SOUTH BEND | IN |
| 2003-10-30 | 765-373 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IN | 7440 | RICHMOND | IN |
| 2003-10-30 | 812-514 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IN | 7440 | TERREHAUTE | IN |
| 2003-10-28 | 316-201 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - KS | 7593 | WICHITA | KS |
| 2003-10-28 | 414-455 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | MILWAUKZN1 | WI |
| 2003-10-27 | 260-247 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IN | 7440 | FORT WAYNE | IN |
| 2003-10-27 | 479-221 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - AR | 7277 | FORT SMITH | AR |
| 2003-10-27 | 812-590 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IN | 7440 | NEW ALBANY | IN |
| 2003-10-24 | 254-523 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | 7249 | WACO | TX |
| 2003-10-24 | 325-201 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | ABILENE | TX |
| 2003-10-24 | 806-283 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LUBBOCK | TX |
| 2003-10-24 | 806-290 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | AMARILLO | TX |
| 2003-10-24 | 915-307 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | EL PASO | TX |
| 2003-10-24 | 940-232 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | WICHITAFLS | TX |
| 2003-10-09 | 808-489 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | HONOLULU | HI |
| 2003-10-07 | 203-369 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT | 7230 | OLDGRNWICH | CT |
| 2003-10-01 | 910-717 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | FAYETTEVL | NC |
| 2003-09-26 | 843-733 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - SC | 8534 | CONWAY | SC |
| 2003-09-25 | 478-257 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - GA | 7435 | MACON | GA |
| 2003-09-25 | 805-858 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SNLUSOBSPO | CA |
| 2003-09-16 | 954-697 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL | 8664 | DEERFLDBCH | FL |
| 2003-09-16 | 954-827 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL | 8664 | CORAL SPG | FL |
| 2003-09-08 | 646-289 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | NWYRCYZN01 | NY |
| 2003-09-06 | 772-679 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL | 8664 | JENSEN BCH | FL |
| 2003-09-05 | 305-402 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL | 8664 | NORTH DADE | FL |
| 2003-09-05 | 305-422 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL | 8664 | KEYS | FL |
| 2003-09-05 | 305-425 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL | 8664 | KEYS | FL |
| 2003-09-05 | 305-489 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL | 8664 | KEYS | FL |
| 2003-09-05 | 305-723 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL | 8664 | KEYS | FL |
| 2003-09-05 | 305-768 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL | 8664 | KEYS | FL |
| 2003-09-05 | 305-832 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL | 8664 | KEYS | FL |
| 2003-09-05 | 305-946 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL | 8664 | KEYS | FL |
| 2003-09-05 | 315-552 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | SYRACUSE | NY |
| 2003-09-05 | 561-423 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL | 8664 | BOYNTONBCH | FL |
| 2003-09-05 | 561-431 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL | 8664 | DELRAY BCH | FL |
| 2003-09-05 | 561-658 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL | 8664 | JUPITER | FL |
| 2003-09-05 | 772-264 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL | 8664 | FORTPIERCE | FL |
| 2003-09-05 | 772-325 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL | 8664 | HOBE SOUND | FL |
| 2003-09-05 | 786-551 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL | 8664 | HOMESTEAD | FL |
| 2003-09-05 | 954-212 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL | 8664 | HOLLYWOOD | FL |
| 2003-09-02 | 228-265 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | GULFPORT | MS |
| 2003-08-26 | 704-312 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | LAWNDALE | NC |
| 2003-08-26 | 704-313 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | LATTIMORE | NC |
| 2003-08-26 | 715-737 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | EAU CLAIRE | WI |
| 2003-08-25 | 559-367 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | FRESNO | CA |
| 2003-08-20 | 270-297 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | OWENSBORO | KY |
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.