NumberResearchRecent prefix assignments
371 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/19/2026
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
Sep 2026
Aug 2026
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Oct 2025
| Assigned | NPA-NXX | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 214-615 | XO TEXAS, INC. | 8958 | DALLAS | TX | |
| 214-616 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | GRANDPRARI | TX | |
| 214-617 | BANDWIDTH.COM CLEC, LLC - TX | 004F | RED OAK | TX | |
| 214-619 | ONVOY, LLC - TX | 903C | FRISCO | TX | |
| 214-621 | T-MOBILE USA, INC. | 6529 | GRANDPRARI | TX | |
| 214-622 | AT&T - LOCAL | 7421 | DALLAS | TX | |
| 214-623 | SOUTHWESTERN BELL | 9533 | DALLAS | TX | |
| 214-624 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DALLAS | TX | |
| 214-626 | FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS | 4344 | LEWISVILLE | TX | |
| 214-627 | LEVEL 3 OF TELECOM OF TEXAS, LLC - TX | 7516 | DALLAS | TX | |
| 214-629 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | GRANDPRARI | TX | |
| 214-630 | SOUTHWESTERN BELL | 9533 | DALLAS | TX | |
| 214-631 | SOUTHWESTERN BELL | 9533 | DALLAS | TX | |
| 214-632 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | GRANDPRARI | TX | |
| 214-634 | SOUTHWESTERN BELL | 9533 | DALLAS | TX | |
| 214-635 | SOUTHWESTERN BELL | 9533 | DALLAS | TX | |
| 214-637 | SOUTHWESTERN BELL | 9533 | DALLAS | TX | |
| 214-638 | SOUTHWESTERN BELL | 9533 | DALLAS | TX | |
| 214-640 | SOUTHWESTERN BELL | 9533 | DALLAS | TX | |
| 214-641 | METROPCS, INC. | 5562 | GRANDPRARI | TX | |
| 214-642 | METROPCS, INC. | 5562 | GRANDPRARI | TX | |
| 214-643 | SOUTHWESTERN BELL | 9533 | DALLAS | TX | |
| 214-644 | ONVOY, LLC - TX | 903C | ALLEN | TX | |
| 214-645 | SOUTHWESTERN BELL | 9533 | DALLAS | TX | |
| 214-646 | ONVOY, LLC - TX | 903C | DALLAS | TX | |
| 214-647 | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7148 | DALLAS | TX | |
| 214-648 | SOUTHWESTERN BELL | 9533 | DALLAS | TX | |
| 214-649 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | GRANDPRARI | TX | |
| 214-651 | SOUTHWESTERN BELL | 9533 | DALLAS | TX | |
| 214-652 | SOUTHWESTERN BELL | 9533 | DALLAS | TX | |
| 214-653 | SOUTHWESTERN BELL | 9533 | DALLAS | TX | |
| 214-654 | SOUTHWESTERN BELL | 9533 | DALLAS | TX | |
| 214-655 | SOUTHWESTERN BELL | 9533 | DALLAS | TX | |
| 214-657 | AMERICAN MESSAGING SERVICES, LLC | 9748 | GRANDPRARI | TX | |
| 214-658 | SOUTHWESTERN BELL | 9533 | DALLAS | TX | |
| 214-659 | SOUTHWESTERN BELL | 9533 | DALLAS | TX | |
| 214-660 | SOUTHWESTERN BELL | 9533 | DALLAS | TX | |
| 214-661 | SOUTHWESTERN BELL | 9533 | DALLAS | TX | |
| 214-662 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | GRANDPRARI | TX | |
| 214-665 | SOUTHWESTERN BELL | 9533 | DALLAS | TX | |
| 214-667 | ONVOY, LLC - TX | 903C | ALLEN | TX | |
| 214-668 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | GRANDPRARI | TX | |
| 214-670 | SOUTHWESTERN BELL | 9533 | DALLAS | TX | |
| 214-671 | SOUTHWESTERN BELL | 9533 | DALLAS | TX | |
| 214-672 | SOUTHWESTERN BELL | 9533 | DALLAS | TX | |
| 214-673 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | GRANDPRARI | TX | |
| 214-674 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | GRANDPRARI | TX | |
| 214-675 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | GRANDPRARI | TX | |
| 214-676 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | GRANDPRARI | TX | |
| 214-677 | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7148 | GRANDPRARI | TX |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.