NumberResearchRecent thousands-block assignments
76 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026
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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Oct 2025
| Assigned | Block | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 2023-05-19 | 557-203-8XXX | T-MOBILE USA, INC. | 6529 | MEHLVILLE | MO |
| 2023-05-19 | 669-332-6XXX | T-MOBILE USA, INC. | 6529 | SARATOGA | CA |
| 2023-05-19 | 669-332-7XXX | T-MOBILE USA, INC. | 6529 | SARATOGA | CA |
| 2023-05-19 | 707-460-5XXX | T-MOBILE USA, INC. | 6529 | CRESCENTCY | CA |
| 2023-05-19 | 725-303-5XXX | T-MOBILE USA, INC. | 6529 | LAS VEGAS | NV |
| 2023-05-19 | 725-303-6XXX | T-MOBILE USA, INC. | 6529 | LAS VEGAS | NV |
| 2023-05-19 | 725-303-7XXX | T-MOBILE USA, INC. | 6529 | LAS VEGAS | NV |
| 2023-05-19 | 725-303-8XXX | T-MOBILE USA, INC. | 6529 | LAS VEGAS | NV |
| 2023-05-19 | 725-303-9XXX | T-MOBILE USA, INC. | 6529 | LAS VEGAS | NV |
| 2023-05-19 | 971-465-7XXX | T-MOBILE USA, INC. | 6529 | DALLAS | OR |
| 2023-05-18 | 405-873-0XXX | T-MOBILE USA, INC. | 6529 | SHAWNEE | OK |
| 2023-05-18 | 405-873-1XXX | T-MOBILE USA, INC. | 6529 | SHAWNEE | OK |
| 2023-05-18 | 539-249-2XXX | T-MOBILE USA, INC. | 6529 | SALLISAW | OK |
| 2023-05-18 | 539-316-1XXX | T-MOBILE USA, INC. | 6529 | MCALESTER | OK |
| 2023-05-18 | 572-746-3XXX | T-MOBILE USA, INC. | 6529 | BRITTON | OK |
| 2023-05-18 | 970-896-7XXX | T-MOBILE USA, INC. | 6529 | STEAMBOSPG | CO |
| 2023-05-12 | 509-610-8XXX | T-MOBILE USA, INC. | 6529 | COLFAX | WA |
| 2023-05-11 | 951-851-6XXX | T-MOBILE USA, INC. | 6529 | HEMT HEMT | CA |
| 2023-05-11 | 951-851-7XXX | T-MOBILE USA, INC. | 6529 | HEMT HEMT | CA |
| 2023-05-11 | 986-942-8XXX | T-MOBILE USA, INC. | 6529 | PAYETTE | ID |
| 2023-05-10 | 304-431-0XXX | T-MOBILE USA, INC. | 6529 | PRINCETON | WV |
| 2023-05-10 | 681-374-1XXX | T-MOBILE USA, INC. | 6529 | BLUEWELL | WV |
| 2023-05-09 | 775-545-2XXX | T-MOBILE USA, INC. | 6529 | SWEETWATER | NV |
| 2023-05-09 | 775-545-3XXX | T-MOBILE USA, INC. | 6529 | SWEETWATER | NV |
| 2023-05-08 | 213-659-1XXX | T-MOBILE USA, INC. | 6529 | LSAN DA 09 | CA |
| 2023-05-08 | 213-659-2XXX | T-MOBILE USA, INC. | 6529 | LSAN DA 09 | CA |
| 2023-05-08 | 213-659-6XXX | T-MOBILE USA, INC. | 6529 | LSAN DA 09 | CA |
| 2023-05-08 | 213-659-7XXX | T-MOBILE USA, INC. | 6529 | LSAN DA 09 | CA |
| 2023-05-08 | 213-659-8XXX | T-MOBILE USA, INC. | 6529 | LSAN DA 09 | CA |
| 2023-05-08 | 213-659-9XXX | T-MOBILE USA, INC. | 6529 | LSAN DA 09 | CA |
| 2023-05-08 | 213-661-8XXX | T-MOBILE USA, INC. | 6529 | LSAN DA 09 | CA |
| 2023-05-08 | 213-661-9XXX | T-MOBILE USA, INC. | 6529 | LSAN DA 09 | CA |
| 2023-05-08 | 341-231-7XXX | T-MOBILE USA, INC. | 6529 | ELSBR-PINL | CA |
| 2023-05-08 | 341-231-8XXX | T-MOBILE USA, INC. | 6529 | ELSBR-PINL | CA |
| 2023-05-08 | 341-231-9XXX | T-MOBILE USA, INC. | 6529 | ELSBR-PINL | CA |
| 2023-05-08 | 530-940-8XXX | T-MOBILE USA, INC. | 6529 | AUBN MAIN | CA |
| 2023-05-08 | 530-940-9XXX | T-MOBILE USA, INC. | 6529 | AUBN MAIN | CA |
| 2023-05-08 | 650-661-9XXX | T-MOBILE USA, INC. | 6529 | PACIFICA | CA |
| 2023-05-08 | 707-810-3XXX | T-MOBILE USA, INC. | 6529 | BENICIA | CA |
| 2023-05-08 | 707-810-4XXX | T-MOBILE USA, INC. | 6529 | BENICIA | CA |
| 2023-05-08 | 707-907-0XXX | T-MOBILE USA, INC. | 6529 | SANTA ROSA | CA |
| 2023-05-08 | 707-907-1XXX | T-MOBILE USA, INC. | 6529 | SANTA ROSA | CA |
| 2023-05-08 | 714-466-4XXX | T-MOBILE USA, INC. | 6529 | SANTA ANA | CA |
| 2023-05-08 | 714-466-5XXX | T-MOBILE USA, INC. | 6529 | SANTA ANA | CA |
| 2023-05-08 | 820-786-9XXX | T-MOBILE USA, INC. | 6529 | ATASCADERO | CA |
| 2023-05-08 | 830-366-6XXX | T-MOBILE USA, INC. | 6529 | PLEASANTON | TX |
| 2023-05-08 | 830-366-7XXX | T-MOBILE USA, INC. | 6529 | PLEASANTON | TX |
| 2023-05-08 | 831-833-6XXX | T-MOBILE USA, INC. | 6529 | HOLLISTER | CA |
| 2023-05-08 | 840-216-0XXX | T-MOBILE USA, INC. | 6529 | ARROWHEAD | CA |
| 2023-05-02 | 628-587-3XXX | T-MOBILE USA, INC. | 6529 | NOVATO | CA |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.