NumberResearchRecent thousands-block assignments
137 blocks assigned in November 2025 · 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, November 2025
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| Assigned | Block | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 2025-11-28 | 341-259-0XXX | T-MOBILE USA, INC. | 6529 | ELSBR-PINL | CA |
| 2025-11-28 | 341-259-1XXX | T-MOBILE USA, INC. | 6529 | ELSBR-PINL | CA |
| 2025-11-28 | 341-265-9XXX | T-MOBILE USA, INC. | 6529 | ELSBR-PINL | CA |
| 2025-11-28 | 509-708-2XXX | T-MOBILE USA, INC. | 6529 | ELLENSBURG | WA |
| 2025-11-28 | 509-708-3XXX | T-MOBILE USA, INC. | 6529 | ELLENSBURG | WA |
| 2025-11-28 | 509-708-4XXX | T-MOBILE USA, INC. | 6529 | ELLENSBURG | WA |
| 2025-11-28 | 628-466-8XXX | T-MOBILE USA, INC. | 6529 | SNFC CNTRL | CA |
| 2025-11-28 | 669-373-2XXX | T-MOBILE USA, INC. | 6529 | SARATOGA | CA |
| 2025-11-28 | 669-373-3XXX | T-MOBILE USA, INC. | 6529 | SARATOGA | CA |
| 2025-11-28 | 858-322-4XXX | T-MOBILE USA, INC. | 6529 | SNDG MRMS | CA |
| 2025-11-28 | 858-445-9XXX | T-MOBILE USA, INC. | 6529 | SNDG MRMS | CA |
| 2025-11-26 | 307-454-4XXX | T-MOBILE USA, INC. | 6529 | RIVERTON | WY |
| 2025-11-26 | 385-618-9XXX | T-MOBILE USA, INC. | 6529 | PROVO | UT |
| 2025-11-26 | 458-319-4XXX | T-MOBILE USA, INC. | 6529 | JUNCTIONCY | OR |
| 2025-11-26 | 505-399-4XXX | T-MOBILE USA, INC. | 6529 | GALLUP | NM |
| 2025-11-26 | 505-868-8XXX | T-MOBILE USA, INC. | 6529 | GALLUP | NM |
| 2025-11-26 | 971-523-0XXX | T-MOBILE USA, INC. | 6529 | TILLAMOOK | OR |
| 2025-11-26 | 971-523-1XXX | T-MOBILE USA, INC. | 6529 | TILLAMOOK | OR |
| 2025-11-26 | 971-523-2XXX | T-MOBILE USA, INC. | 6529 | TILLAMOOK | OR |
| 2025-11-26 | 971-523-3XXX | T-MOBILE USA, INC. | 6529 | TILLAMOOK | OR |
| 2025-11-26 | 971-523-4XXX | T-MOBILE USA, INC. | 6529 | TILLAMOOK | OR |
| 2025-11-26 | 971-523-5XXX | T-MOBILE USA, INC. | 6529 | TILLAMOOK | OR |
| 2025-11-26 | 971-523-6XXX | T-MOBILE USA, INC. | 6529 | TILLAMOOK | OR |
| 2025-11-25 | 515-983-6XXX | T-MOBILE USA, INC. | 6529 | AMES | IA |
| 2025-11-25 | 515-983-7XXX | T-MOBILE USA, INC. | 6529 | AMES | IA |
| 2025-11-25 | 515-983-8XXX | T-MOBILE USA, INC. | 6529 | AMES | IA |
| 2025-11-25 | 515-983-9XXX | T-MOBILE USA, INC. | 6529 | AMES | IA |
| 2025-11-25 | 779-436-9XXX | T-MOBILE USA, INC. | 6529 | PLAINFIELD | IL |
| 2025-11-24 | 458-343-0XXX | T-MOBILE USA, INC. | 6529 | BEND | OR |
| 2025-11-24 | 458-343-1XXX | T-MOBILE USA, INC. | 6529 | BEND | OR |
| 2025-11-24 | 458-343-2XXX | T-MOBILE USA, INC. | 6529 | BEND | OR |
| 2025-11-24 | 458-343-3XXX | T-MOBILE USA, INC. | 6529 | BEND | OR |
| 2025-11-24 | 458-343-4XXX | T-MOBILE USA, INC. | 6529 | BEND | OR |
| 2025-11-24 | 840-283-7XXX | T-MOBILE USA, INC. | 6529 | ARROWHEAD | CA |
| 2025-11-24 | 840-283-8XXX | T-MOBILE USA, INC. | 6529 | ARROWHEAD | CA |
| 2025-11-24 | 840-283-9XXX | T-MOBILE USA, INC. | 6529 | ARROWHEAD | CA |
| 2025-11-24 | 840-286-9XXX | T-MOBILE USA, INC. | 6529 | ARROWHEAD | CA |
| 2025-11-24 | 951-806-1XXX | T-MOBILE USA, INC. | 6529 | MORENO | CA |
| 2025-11-24 | 951-806-2XXX | T-MOBILE USA, INC. | 6529 | MORENO | CA |
| 2025-11-24 | 951-806-3XXX | T-MOBILE USA, INC. | 6529 | MORENO | CA |
| 2025-11-24 | 951-806-4XXX | T-MOBILE USA, INC. | 6529 | MORENO | CA |
| 2025-11-24 | 951-806-5XXX | T-MOBILE USA, INC. | 6529 | MORENO | CA |
| 2025-11-24 | 951-806-6XXX | T-MOBILE USA, INC. | 6529 | MORENO | CA |
| 2025-11-20 | 618-875-6XXX | T-MOBILE USA, INC. | 6529 | E ST LOUIS | IL |
| 2025-11-17 | 208-471-7XXX | T-MOBILE USA, INC. | 6529 | KETCHUM | ID |
| 2025-11-17 | 208-640-7XXX | T-MOBILE USA, INC. | 6529 | COERDALENE | ID |
| 2025-11-17 | 208-808-4XXX | T-MOBILE USA, INC. | 6529 | BURLEY | ID |
| 2025-11-17 | 224-672-0XXX | T-MOBILE USA, INC. | 6529 | ARLIGTNHTS | IL |
| 2025-11-17 | 224-672-1XXX | T-MOBILE USA, INC. | 6529 | ARLIGTNHTS | IL |
| 2025-11-17 | 224-672-2XXX | T-MOBILE USA, INC. | 6529 | ARLIGTNHTS | IL |
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.