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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Oct 2025
| Assigned | NPA-NXX | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 314-646 | SOUTHWESTERN BELL | 9533 | ST LOUIS | MO | |
| 314-647 | SOUTHWESTERN BELL | 9533 | ST LOUIS | MO | |
| 314-649 | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | MEHLVILLE | MO | |
| 314-650 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | KIRKWOOD | MO | |
| 314-651 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LADUE | MO | |
| 314-652 | SOUTHWESTERN BELL | 9533 | ST LOUIS | MO | |
| 314-653 | SOUTHWESTERN BELL | 9533 | LADUE | MO | |
| 314-654 | SOUTHWESTERN BELL | 9533 | LADUE | MO | |
| 314-655 | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | ST LOUIS | MO | |
| 314-656 | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | LADUE | MO | |
| 314-657 | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | ST LOUIS | MO | |
| 314-658 | SOUTHWESTERN BELL | 9533 | ST LOUIS | MO | |
| 314-659 | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | ST LOUIS | MO | |
| 314-660 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | KIRKWOOD | MO | |
| 314-662 | T-MOBILE USA, INC. | 6529 | LADUE | MO | |
| 314-663 | AMERICAN MESSAGING SERVICES, LLC | 9748 | ST LOUIS | MO | |
| 314-664 | SOUTHWESTERN BELL | 9533 | ST LOUIS | MO | |
| 314-667 | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | ST LOUIS | MO | |
| 314-669 | ONVOY, LLC - MO | 093F | ST LOUIS | MO | |
| 314-670 | AMERICAN MESSAGING SERVICES, LLC | 9748 | ST LOUIS | MO | |
| 314-672 | AMERICAN MESSAGING SERVICES, LLC | 9748 | ST LOUIS | MO | |
| 314-674 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO | 7432 | CREVECOEUR | MO | |
| 314-675 | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | MEHLVILLE | MO | |
| 314-678 | PAETEC ITEL, LLC | 829J | ST LOUIS | MO | |
| 314-679 | SOUTHWESTERN BELL | 9533 | ST LOUIS | MO | |
| 314-680 | T-MOBILE USA, INC. | 6529 | ST LOUIS | MO | |
| 314-682 | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | CREVECOEUR | MO | |
| 314-683 | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | LADUE | MO | |
| 314-684 | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | LADUE | MO | |
| 314-687 | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | LADUE | MO | |
| 314-689 | ONVOY, LLC - MO | 093F | KIRKWOOD | MO | |
| 314-690 | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | SAPPINGTON | MO | |
| 314-691 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | KIRKWOOD | MO | |
| 314-692 | SOUTHWESTERN BELL | 9533 | LADUE | MO | |
| 314-693 | SOUTHWESTERN BELL | 9533 | LADUE | MO | |
| 314-694 | SOUTHWESTERN BELL | 9533 | LADUE | MO | |
| 314-698 | AT&T ENTERPRISES, LLC | 516C | KIRKWOOD | MO | |
| 314-699 | ONVOY, LLC - MO | 093F | LADUE | MO | |
| 314-700 | MO | ||||
| 314-702 | SOUTHWESTERN BELL | 9533 | LADUE | MO | |
| 314-703 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | LADUE | MO | |
| 314-704 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | LADUE | MO | |
| 314-705 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | LADUE | MO | |
| 314-706 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | LADUE | MO | |
| 314-707 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | LADUE | MO | |
| 314-708 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | LADUE | MO | |
| 314-709 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | LADUE | MO | |
| 314-711 | MULTIPLE OCN LISTING | MULT | XXXXXXXXXX | MO | |
| 314-712 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | LADUE | MO | |
| 314-713 | T-MOBILE USA, INC. | 6529 | CREVECOEUR | 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.