NumberResearchRecent prefix assignments
352 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
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Oct 2025
| Assigned | NPA-NXX | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 210-705 | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX | |
| 210-706 | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX | |
| 210-710 | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX | |
| 210-711 | MULTIPLE OCN LISTING | MULT | XXXXXXXXXX | TX | |
| 210-713 | SPOK, INC. | 6630 | SANANTONIO | TX | |
| 210-715 | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX | |
| 210-720 | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX | |
| 210-722 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | SANANTONIO | TX | |
| 210-723 | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX | |
| 210-724 | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX | |
| 210-725 | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX | |
| 210-730 | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX | |
| 210-731 | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX | |
| 210-732 | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX | |
| 210-733 | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX | |
| 210-734 | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX | |
| 210-735 | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX | |
| 210-736 | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX | |
| 210-737 | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX | |
| 210-738 | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX | |
| 210-744 | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX | |
| 210-746 | SPOK, INC. | 6630 | SANANTONIO | TX | |
| 210-747 | SPOK, INC. | 6630 | SANANTONIO | TX | |
| 210-748 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SANANTONIO | TX | |
| 210-750 | ONVOY, LLC - TX | 903C | SANANTONIO | TX | |
| 210-752 | SPOK, INC. | 6630 | SANANTONIO | TX | |
| 210-754 | SPOK, INC. | 6630 | SANANTONIO | TX | |
| 210-757 | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | SANANTONIO | TX | |
| 210-764 | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX | |
| 210-770 | SOUTHWESTERN BELL | 9533 | XXXXXXXXXX | TX | |
| 210-771 | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX | |
| 210-776 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SANANTONIO | TX | |
| 210-785 | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX | |
| 210-789 | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX | |
| 210-791 | ONVOY, LLC - TX | 903C | SANANTONIO | TX | |
| 210-798 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SANANTONIO | TX | |
| 210-804 | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX | |
| 210-805 | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX | |
| 210-811 | MULTIPLE OCN LISTING | MULT | XXXXXXXXXX | TX | |
| 210-813 | SPOK, INC. | 6630 | SANANTONIO | TX | |
| 210-814 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SANANTONIO | TX | |
| 210-820 | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX | |
| 210-821 | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX | |
| 210-822 | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX | |
| 210-823 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | SANANTONIO | TX | |
| 210-824 | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX | |
| 210-825 | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX | |
| 210-826 | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX | |
| 210-827 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SANANTONIO | TX | |
| 210-828 | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX |
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.