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
Sep 2026
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Oct 2025
| Assigned | NPA-NXX | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 210-641 | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX | |
| 210-643 | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX | |
| 210-645 | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX | |
| 210-646 | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX | |
| 210-647 | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX | |
| 210-648 | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX | |
| 210-649 | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX | |
| 210-650 | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX | |
| 210-651 | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX | |
| 210-652 | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX | |
| 210-653 | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX | |
| 210-654 | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX | |
| 210-655 | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX | |
| 210-656 | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX | |
| 210-657 | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX | |
| 210-658 | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX | |
| 210-659 | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX | |
| 210-661 | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX | |
| 210-662 | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX | |
| 210-663 | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX | |
| 210-664 | PEERLESS NETWORK OF TEXAS, LLC - TX | 177F | SANANTONIO | TX | |
| 210-666 | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX | |
| 210-667 | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX | |
| 210-669 | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX | |
| 210-670 | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX | |
| 210-671 | LEVEL 3 OF TELECOM OF TEXAS, LLC - TX | 8434 | SANANTONIO | TX | |
| 210-673 | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX | |
| 210-674 | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX | |
| 210-675 | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX | |
| 210-677 | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX | |
| 210-678 | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX | |
| 210-679 | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX | |
| 210-680 | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX | |
| 210-681 | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX | |
| 210-682 | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX | |
| 210-684 | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX | |
| 210-685 | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX | |
| 210-687 | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX | |
| 210-688 | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX | |
| 210-690 | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX | |
| 210-691 | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX | |
| 210-692 | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX | |
| 210-694 | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX | |
| 210-695 | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX | |
| 210-696 | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX | |
| 210-697 | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX | |
| 210-698 | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX | |
| 210-699 | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX | |
| 210-700 | TX | ||||
| 210-704 | 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.