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 |
|---|---|---|---|---|---|
| 305-660 | AMERICAN MESSAGING SERVICES, LLC | 9748 | NORTH DADE | FL | |
| 305-661 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | MIAMI | FL | |
| 305-662 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | MIAMI | FL | |
| 305-663 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | MIAMI | FL | |
| 305-664 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | KEYS | FL | |
| 305-665 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | MIAMI | FL | |
| 305-666 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | MIAMI | FL | |
| 305-667 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | MIAMI | FL | |
| 305-668 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | MIAMI | FL | |
| 305-669 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | MIAMI | FL | |
| 305-670 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | MIAMI | FL | |
| 305-671 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | MIAMI | FL | |
| 305-672 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | MIAMI | FL | |
| 305-673 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | MIAMI | FL | |
| 305-674 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | MIAMI | FL | |
| 305-675 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL | 8664 | MIAMI | FL | |
| 305-676 | TELEPORT COMMUNICATIONS AMERICA, LLC - FL | 8300 | KEYS | FL | |
| 305-678 | AMERICAN MESSAGING SERVICES, LLC | 9748 | NORTH DADE | FL | |
| 305-679 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | MIAMI | FL | |
| 305-680 | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | KEYS | FL | |
| 305-681 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | MIAMI | FL | |
| 305-682 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | NORTH DADE | FL | |
| 305-683 | PAETEC ITEL, LLC | 829J | KEYS | FL | |
| 305-684 | METROPCS, INC. | 5562 | KEYS | FL | |
| 305-685 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | MIAMI | FL | |
| 305-687 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | MIAMI | FL | |
| 305-688 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | MIAMI | FL | |
| 305-689 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | MIAMI | FL | |
| 305-690 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | NORTH DADE | FL | |
| 305-691 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | MIAMI | FL | |
| 305-692 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | NORTH DADE | FL | |
| 305-693 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | MIAMI | FL | |
| 305-694 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | MIAMI | FL | |
| 305-695 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | MIAMI | FL | |
| 305-696 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | MIAMI | FL | |
| 305-698 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | MIAMI | FL | |
| 305-699 | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | KEYS | FL | |
| 305-700 | MULTIPLE OCN LISTING | MULT | XXXXXXXXXX | FL | |
| 305-702 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL | 8664 | MIAMI | FL | |
| 305-704 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL | 8664 | MIAMI | FL | |
| 305-705 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | NORTH DADE | FL | |
| 305-706 | ABC PAGING CITY BEEPERS, INC. | 6548 | MIAMI | FL | |
| 305-708 | ABC PAGING CITY BEEPERS, INC. | 6548 | MIAMI | FL | |
| 305-710 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL | 6502 | MIAMI | FL | |
| 305-711 | MULTIPLE OCN LISTING | MULT | XXXXXXXXXX | FL | |
| 305-712 | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | KEYS | FL | |
| 305-713 | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | KEYS | FL | |
| 305-714 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL | 8664 | MIAMI | FL | |
| 305-715 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | MIAMI | FL | |
| 305-716 | 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.