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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Dec 2025
Nov 2025
Oct 2025
| Assigned | NPA-NXX | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 305-310 | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | MIAMI | FL | |
| 305-311 | MULTIPLE OCN LISTING | MULT | XXXXXXXXXX | FL | |
| 305-312 | SPOK, INC. | 6630 | MIAMI | FL | |
| 305-313 | SPOK, INC. | 6630 | MIAMI | FL | |
| 305-314 | SPOK, INC. | 6630 | MIAMI | FL | |
| 305-318 | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | NORTH DADE | FL | |
| 305-319 | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | NORTH DADE | FL | |
| 305-321 | METROPCS, INC. | 5562 | MIAMI | FL | |
| 305-322 | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | MIAMI | FL | |
| 305-323 | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | MIAMI | FL | |
| 305-324 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | MIAMI | FL | |
| 305-325 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | MIAMI | FL | |
| 305-326 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | MIAMI | FL | |
| 305-327 | ABC PAGING CITY BEEPERS, INC. | 6548 | MIAMI | FL | |
| 305-328 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL | 8664 | PERRINE | FL | |
| 305-329 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | MIAMI | FL | |
| 305-331 | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | NORTH DADE | FL | |
| 305-332 | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | NORTH DADE | FL | |
| 305-333 | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | NORTH DADE | FL | |
| 305-335 | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | NORTH DADE | FL | |
| 305-336 | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | NORTH DADE | FL | |
| 305-338 | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | PERRINE | FL | |
| 305-341 | TELEPORT COMMUNICATIONS AMERICA, LLC - FL | 8300 | MIAMI | FL | |
| 305-342 | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | MIAMI | FL | |
| 305-343 | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | NORTH DADE | FL | |
| 305-344 | ABC PAGING CITY BEEPERS, INC. | 6548 | MIAMI | FL | |
| 305-345 | METROPCS, INC. | 5562 | MIAMI | FL | |
| 305-346 | AMERICAN MESSAGING SERVICES, LLC | 9748 | MIAMI | FL | |
| 305-347 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | MIAMI | FL | |
| 305-348 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | MIAMI | FL | |
| 305-349 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | MIAMI | FL | |
| 305-350 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | MIAMI | FL | |
| 305-351 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL | 8664 | MIAMI | FL | |
| 305-352 | SPOK, INC. | 6630 | MIAMI | FL | |
| 305-353 | SPOK, INC. | 6630 | MIAMI | FL | |
| 305-354 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | NORTH DADE | FL | |
| 305-355 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | MIAMI | FL | |
| 305-356 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL | 8664 | NORTH DADE | FL | |
| 305-357 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | MIAMI | FL | |
| 305-358 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | MIAMI | FL | |
| 305-359 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL | 8664 | KEYS | FL | |
| 305-361 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | MIAMI | FL | |
| 305-362 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | MIAMI | FL | |
| 305-364 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | MIAMI | FL | |
| 305-365 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | MIAMI | FL | |
| 305-366 | SPOK, INC. | 6630 | MIAMI | FL | |
| 305-367 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | KEYS | FL | |
| 305-368 | SPOK, INC. | 6630 | MIAMI | FL | |
| 305-370 | TELEPORT COMMUNICATIONS AMERICA, LLC - FL | 8300 | NORTH DADE | FL | |
| 305-371 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | MIAMI | 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.