NumberResearchRecent prefix assignments
369 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.
Most active assignees, last 30 days
New assignments by month
Sep 2026
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Oct 2025
| Assigned | NPA-NXX | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 305-372 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | MIAMI | FL | |
| 305-373 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | MIAMI | FL | |
| 305-374 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | MIAMI | FL | |
| 305-375 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | MIAMI | FL | |
| 305-376 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | MIAMI | FL | |
| 305-377 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | MIAMI | FL | |
| 305-378 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | PERRINE | FL | |
| 305-379 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | MIAMI | FL | |
| 305-380 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | MIAMI | FL | |
| 305-381 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | MIAMI | FL | |
| 305-382 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | MIAMI | FL | |
| 305-383 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | MIAMI | FL | |
| 305-384 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL | 8664 | NORTH DADE | FL | |
| 305-385 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | MIAMI | FL | |
| 305-386 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | MIAMI | FL | |
| 305-387 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | MIAMI | FL | |
| 305-388 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | MIAMI | FL | |
| 305-389 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL | 6502 | MIAMI | FL | |
| 305-390 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL | 8664 | KEYS | FL | |
| 305-392 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | MIAMI | FL | |
| 305-393 | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | KEYS | FL | |
| 305-394 | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | KEYS | FL | |
| 305-395 | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | KEYS | FL | |
| 305-396 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL | 8664 | KEYS | FL | |
| 305-398 | PAETEC ITEL, LLC | 829J | MIAMI | FL | |
| 305-400 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | MIAMI | FL | |
| 305-401 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL | 6502 | MIAMI | FL | |
| 305-403 | PAETEC ITEL, LLC | 829J | MIAMI | FL | |
| 305-405 | PAETEC ITEL, LLC | 829J | NORTH DADE | FL | |
| 305-406 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | MIAMI | FL | |
| 305-407 | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | KEYS | FL | |
| 305-408 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | MIAMI | FL | |
| 305-409 | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | NORTH DADE | FL | |
| 305-410 | ABC PAGING CITY BEEPERS, INC. | 6548 | MIAMI | FL | |
| 305-411 | MULTIPLE OCN LISTING | MULT | XXXXXXXXXX | FL | |
| 305-412 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | MIAMI | FL | |
| 305-415 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | MIAMI | FL | |
| 305-416 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | MIAMI | FL | |
| 305-418 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | MIAMI | FL | |
| 305-420 | TELEPORT COMMUNICATIONS AMERICA, LLC - FL | 8300 | MIAMI | FL | |
| 305-421 | TELEPORT COMMUNICATIONS AMERICA, LLC - FL | 8300 | MIAMI | FL | |
| 305-423 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL | 8664 | MIAMI | FL | |
| 305-424 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | MIAMI | FL | |
| 305-426 | ABC PAGING CITY BEEPERS, INC. | 6548 | MIAMI | FL | |
| 305-428 | TELEPORT COMMUNICATIONS AMERICA, LLC - FL | 8300 | MIAMI | FL | |
| 305-430 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | NORTH DADE | FL | |
| 305-431 | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | PERRINE | FL | |
| 305-432 | LEVEL 3 COMMUNICATIONS, LLC - FL | 4802 | KEYS | FL | |
| 305-433 | TELEPORT COMMUNICATIONS AMERICA, LLC - FL | 8300 | KEYS | FL | |
| 305-434 | TELEPORT COMMUNICATIONS AMERICA, LLC - FL | 8300 | KEYS | FL |
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.