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 |
|---|---|---|---|---|---|
| 267-480 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PHPHSBZN45 | PA | |
| 267-498 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA | 7434 | LANSDALE | PA | |
| 267-508 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PHPHSBZN32 | PA | |
| 267-518 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA | 7434 | PHPHSBZN38 | PA | |
| 267-526 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PHPHSBZN41 | PA | |
| 267-540 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PHPHSBZN42 | PA | |
| 267-545 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PHPHSBZN42 | PA | |
| 267-590 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PHPHSBZN44 | PA | |
| 267-654 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | NORTHWALES | PA | |
| 267-790 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | MORRISVL | PA | |
| 267-940 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PHLDLPHZN1 | PA | |
| 269-258 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7157 | WAYLAND | MI | |
| 269-941 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7157 | ALLEGAN | MI | |
| 270-921 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | GILBERTSVL | KY | |
| 281-366 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | 7239 | HSTNSUBURB | TX | |
| 281-377 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | 7239 | BAMMEL | TX | |
| 281-502 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | 7239 | HIGHLANDS | TX | |
| 281-504 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | 7239 | HSTNSUBURB | TX | |
| 281-553 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | 7239 | WESTFIELD | TX | |
| 281-607 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | 7239 | MANVEL | TX | |
| 281-619 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | 7239 | HSTNSUBURB | TX | |
| 281-657 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | HOUSTON | TX | |
| 281-667 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | 7239 | APOLLO | TX | |
| 281-668 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | 7239 | HSTNSUBURB | TX | |
| 281-670 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | 7239 | HSTNSUBURB | TX | |
| 281-671 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | 7239 | SATSUMA | TX | |
| 281-673 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | 7239 | BAMMEL | TX | |
| 281-674 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | 7239 | HSTNSUBURB | TX | |
| 281-676 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | 7239 | BARKER | TX | |
| 281-677 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | 7239 | HSTNSUBURB | TX | |
| 281-709 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | 7239 | APOLLO | TX | |
| 281-710 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | 7239 | ARCOLA | TX | |
| 281-716 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | 7239 | BAMMEL | TX | |
| 281-717 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | 7239 | BARKER | TX | |
| 281-720 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SATSUMA | TX | |
| 281-809 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | 7239 | HSTNSUBURB | TX | |
| 281-815 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | 7239 | LANGHAMCRK | TX | |
| 281-817 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | 7239 | DEER PARK | TX | |
| 281-819 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | 7239 | FRIENDSWD | TX | |
| 281-886 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | 7239 | HSTNSUBURB | TX | |
| 281-892 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | 7239 | HSTNSUBURB | TX | |
| 281-901 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | 7239 | HSTNSUBURB | TX | |
| 281-949 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | 7239 | SATSUMA | TX | |
| 281-962 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | 7239 | SHELDON | TX | |
| 281-969 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | 7239 | STAFFORD | TX | |
| 281-982 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | 7239 | WESTFIELD | TX | |
| 301-232 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | ASHTON236 | MD | |
| 301-235 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | WSNGTNZN16 | MD | |
| 301-242 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | BRANDYWINE | MD | |
| 301-250 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | GAITHERSBG | MD |
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.