NumberResearchRecent thousands-block assignments
76 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/18/2026
Most carrier growth happens here, not at the prefix level: under number pooling, carriers receive individual 1,000-number blocks (e.g. 626-470-0XXX) within already-assigned prefixes. Assignments are initial assignments — the current serving carrier of individual numbers may differ due to portability.
Most active assignees, last 30 days
New assignments by month
Sep 2026
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Dec 2025
Nov 2025
Oct 2025
| Assigned | Block | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 2025-07-01 | 872-381-1XXX | T-MOBILE USA, INC. | 6529 | CHICGOZN09 | IL |
| 2025-07-01 | 872-381-2XXX | T-MOBILE USA, INC. | 6529 | CHICGOZN09 | IL |
| 2025-07-01 | 872-381-3XXX | T-MOBILE USA, INC. | 6529 | CHICGOZN09 | IL |
| 2025-07-01 | 872-384-2XXX | T-MOBILE USA, INC. | 6529 | CHICGOZN02 | IL |
| 2025-07-01 | 872-384-6XXX | T-MOBILE USA, INC. | 6529 | CHICGOZN02 | IL |
| 2025-06-30 | 530-996-3XXX | T-MOBILE USA, INC. | 6529 | AUBN MAIN | CA |
| 2025-06-30 | 530-996-4XXX | T-MOBILE USA, INC. | 6529 | AUBN MAIN | CA |
| 2025-06-30 | 530-996-5XXX | T-MOBILE USA, INC. | 6529 | AUBN MAIN | CA |
| 2025-06-30 | 530-996-6XXX | T-MOBILE USA, INC. | 6529 | AUBN MAIN | CA |
| 2025-06-30 | 820-216-2XXX | T-MOBILE USA, INC. | 6529 | ARROYOGRND | CA |
| 2025-06-30 | 820-216-3XXX | T-MOBILE USA, INC. | 6529 | ARROYOGRND | CA |
| 2025-06-30 | 951-209-2XXX | T-MOBILE USA, INC. | 6529 | MORENO | CA |
| 2025-06-30 | 951-705-8XXX | T-MOBILE USA, INC. | 6529 | MORENO | CA |
| 2025-06-30 | 951-713-5XXX | T-MOBILE USA, INC. | 6529 | MORENO | CA |
| 2025-06-30 | 971-516-0XXX | T-MOBILE USA, INC. | 6529 | BEAVERTON | OR |
| 2025-06-30 | 971-516-1XXX | T-MOBILE USA, INC. | 6529 | BEAVERTON | OR |
| 2025-06-30 | 971-516-2XXX | T-MOBILE USA, INC. | 6529 | BEAVERTON | OR |
| 2025-06-27 | 681-775-7XXX | T-MOBILE USA, INC. | 6529 | ANSTED | WV |
| 2025-06-27 | 681-775-8XXX | T-MOBILE USA, INC. | 6529 | ANSTED | WV |
| 2025-06-26 | 219-341-4XXX | T-MOBILE USA, INC. | 6529 | E CHICAGO | IN |
| 2025-06-26 | 406-617-4XXX | T-MOBILE USA, INC. | 6529 | BILLINGS | MT |
| 2025-06-26 | 406-617-5XXX | T-MOBILE USA, INC. | 6529 | BILLINGS | MT |
| 2025-06-26 | 458-281-6XXX | T-MOBILE USA, INC. | 6529 | BEND | OR |
| 2025-06-26 | 458-281-7XXX | T-MOBILE USA, INC. | 6529 | BEND | OR |
| 2025-06-26 | 458-322-5XXX | T-MOBILE USA, INC. | 6529 | ALBANY | OR |
| 2025-06-26 | 458-347-9XXX | T-MOBILE USA, INC. | 6529 | ALBANY | OR |
| 2025-06-26 | 575-324-3XXX | T-MOBILE USA, INC. | 6529 | ALAMOGORDO | NM |
| 2025-06-26 | 575-324-9XXX | T-MOBILE USA, INC. | 6529 | ALAMOGORDO | NM |
| 2025-06-26 | 580-826-4XXX | T-MOBILE USA, INC. | 6529 | ARDMORE | OK |
| 2025-06-26 | 620-460-7XXX | T-MOBILE USA, INC. | 6529 | TYRO | KS |
| 2025-06-25 | 319-990-7XXX | T-MOBILE USA, INC. | 6529 | BRIGHTON | IA |
| 2025-06-25 | 319-990-8XXX | T-MOBILE USA, INC. | 6529 | BRIGHTON | IA |
| 2025-06-25 | 515-694-7XXX | T-MOBILE USA, INC. | 6529 | AMES | IA |
| 2025-06-25 | 515-694-8XXX | T-MOBILE USA, INC. | 6529 | AMES | IA |
| 2025-06-25 | 563-772-1XXX | T-MOBILE USA, INC. | 6529 | CASCADE | IA |
| 2025-06-25 | 925-491-0XXX | T-MOBILE USA, INC. | 6529 | ANTIOCH | CA |
| 2025-06-25 | 925-537-5XXX | T-MOBILE USA, INC. | 6529 | LIVERMORE | CA |
| 2025-06-25 | 925-545-7XXX | T-MOBILE USA, INC. | 6529 | ANTIOCH | CA |
| 2025-06-25 | 925-545-8XXX | T-MOBILE USA, INC. | 6529 | ANTIOCH | CA |
| 2025-06-25 | 925-545-9XXX | T-MOBILE USA, INC. | 6529 | ANTIOCH | CA |
| 2025-06-24 | 682-473-0XXX | T-MOBILE USA, INC. | 6529 | FORT WORTH | TX |
| 2025-06-24 | 817-450-3XXX | T-MOBILE USA, INC. | 6529 | FORT WORTH | TX |
| 2025-06-24 | 817-450-4XXX | T-MOBILE USA, INC. | 6529 | FORT WORTH | TX |
| 2025-06-24 | 817-750-2XXX | T-MOBILE USA, INC. | 6529 | FORT WORTH | TX |
| 2025-06-24 | 817-750-3XXX | T-MOBILE USA, INC. | 6529 | FORT WORTH | TX |
| 2025-06-24 | 817-750-4XXX | T-MOBILE USA, INC. | 6529 | FORT WORTH | TX |
| 2025-06-24 | 817-750-5XXX | T-MOBILE USA, INC. | 6529 | FORT WORTH | TX |
| 2025-06-24 | 817-750-6XXX | T-MOBILE USA, INC. | 6529 | FORT WORTH | TX |
| 2025-06-24 | 817-750-7XXX | T-MOBILE USA, INC. | 6529 | FORT WORTH | TX |
| 2025-06-24 | 817-750-9XXX | T-MOBILE USA, INC. | 6529 | FORT WORTH | TX |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/18/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.