NumberResearchRecent prefix assignments
369 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/18/2026
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
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| Assigned | NPA-NXX | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 314-393 | T-MOBILE USA, INC. | 6529 | ST LOUIS | MO | |
| 314-394 | CHARTER IP ENABLED SERVICES, LLC | 792K | KIRKWOOD | MO | |
| 314-397 | T-MOBILE USA, INC. | 6529 | LADUE | MO | |
| 314-398 | T-MOBILE USA, INC. | 6529 | ST LOUIS | MO | |
| 314-400 | ONVOY, LLC - MO | 093F | LADUE | MO | |
| 314-401 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | KIRKWOOD | MO | |
| 314-402 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | KIRKWOOD | MO | |
| 314-406 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LADUE | MO | |
| 314-407 | AMERICAN MESSAGING SERVICES, LLC | 9748 | LADUE | MO | |
| 314-409 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LADUE | MO | |
| 314-410 | PEERLESS NETWORK OF MISSOURI, LLC - MO | 225F | ST LOUIS | MO | |
| 314-411 | MULTIPLE OCN LISTING | MULT | XXXXXXXXXX | MO | |
| 314-412 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | LADUE | MO | |
| 314-413 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | LADUE | MO | |
| 314-414 | BANDWIDTH.COM CLEC, LLC - MO | 993E | LADUE | MO | |
| 314-415 | SOUTHWESTERN BELL | 9533 | CREVECOEUR | MO | |
| 314-416 | SOUTHWESTERN BELL | 9533 | MEHLVILLE | MO | |
| 314-418 | SOUTHWESTERN BELL | 9533 | ST LOUIS | MO | |
| 314-419 | AMERICAN MESSAGING SERVICES, LLC | 9748 | LADUE | MO | |
| 314-420 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | KIRKWOOD | MO | |
| 314-421 | SOUTHWESTERN BELL | 9533 | ST LOUIS | MO | |
| 314-422 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LADUE | MO | |
| 314-423 | SOUTHWESTERN BELL | 9533 | LADUE | MO | |
| 314-424 | AMERICAN MESSAGING SERVICES, LLC | 9748 | LADUE | MO | |
| 314-425 | SOUTHWESTERN BELL | 9533 | ST LOUIS | MO | |
| 314-426 | SOUTHWESTERN BELL | 9533 | LADUE | MO | |
| 314-427 | SOUTHWESTERN BELL | 9533 | LADUE | MO | |
| 314-428 | SOUTHWESTERN BELL | 9533 | LADUE | MO | |
| 314-429 | SOUTHWESTERN BELL | 9533 | LADUE | MO | |
| 314-431 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO | 7432 | SAPPINGTON | MO | |
| 314-432 | SOUTHWESTERN BELL | 9533 | LADUE | MO | |
| 314-433 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO | 7432 | MEHLVILLE | MO | |
| 314-434 | SOUTHWESTERN BELL | 9533 | CREVECOEUR | MO | |
| 314-435 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ST LOUIS | MO | |
| 314-436 | SOUTHWESTERN BELL | 9533 | ST LOUIS | MO | |
| 314-438 | SOUTHWESTERN BELL | 9533 | LADUE | MO | |
| 314-439 | SOUTHWESTERN BELL | 9533 | CREVECOEUR | MO | |
| 314-440 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | LADUE | MO | |
| 314-442 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO | 7432 | LADUE | MO | |
| 314-443 | T-MOBILE USA, INC. | 6529 | LADUE | MO | |
| 314-444 | SOUTHWESTERN BELL | 9533 | ST LOUIS | MO | |
| 314-445 | SOUTHWESTERN BELL | 9533 | ST LOUIS | MO | |
| 314-446 | PAETEC ITEL, LLC | 829J | ST LOUIS | MO | |
| 314-447 | PAETEC ITEL, LLC | 829J | LADUE | MO | |
| 314-450 | AT&T - LOCAL | 7421 | ST LOUIS | MO | |
| 314-451 | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | LADUE | MO | |
| 314-453 | SOUTHWESTERN BELL | 9533 | CREVECOEUR | MO | |
| 314-454 | SOUTHWESTERN BELL | 9533 | ST LOUIS | MO | |
| 314-455 | CHARTER IP ENABLED SERVICES, LLC | 792K | LADUE | MO | |
| 314-457 | SOUTHWESTERN BELL | 9533 | ST LOUIS | MO |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/18/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.