NumberResearchRecent thousands-block assignments
66 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 |
|---|---|---|---|---|---|
| 2022-03-08 | 515-391-2XXX | T-MOBILE USA, INC. | 6529 | JEFFERSON | IA |
| 2022-03-08 | 726-223-0XXX | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2022-03-08 | 726-567-0XXX | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2022-03-08 | 726-567-7XXX | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2022-03-08 | 830-366-3XXX | T-MOBILE USA, INC. | 6529 | PLEASANTON | TX |
| 2022-03-08 | 940-843-0XXX | T-MOBILE USA, INC. | 6529 | DENTON | TX |
| 2022-03-08 | 940-843-1XXX | T-MOBILE USA, INC. | 6529 | DENTON | TX |
| 2022-03-08 | 940-843-3XXX | T-MOBILE USA, INC. | 6529 | DENTON | TX |
| 2022-03-08 | 940-843-5XXX | T-MOBILE USA, INC. | 6529 | DENTON | TX |
| 2022-03-08 | 940-843-6XXX | T-MOBILE USA, INC. | 6529 | DENTON | TX |
| 2022-03-08 | 940-843-7XXX | T-MOBILE USA, INC. | 6529 | DENTON | TX |
| 2022-03-08 | 940-843-8XXX | T-MOBILE USA, INC. | 6529 | DENTON | TX |
| 2022-03-08 | 940-843-9XXX | T-MOBILE USA, INC. | 6529 | DENTON | TX |
| 2022-03-08 | 940-977-2XXX | T-MOBILE USA, INC. | 6529 | DENTON | TX |
| 2022-03-08 | 940-977-3XXX | T-MOBILE USA, INC. | 6529 | DENTON | TX |
| 2022-03-08 | 940-977-4XXX | T-MOBILE USA, INC. | 6529 | DENTON | TX |
| 2022-03-08 | 940-977-5XXX | T-MOBILE USA, INC. | 6529 | DENTON | TX |
| 2022-03-08 | 971-428-9XXX | T-MOBILE USA, INC. | 6529 | SALEM | OR |
| 2022-03-07 | 216-474-3XXX | T-MOBILE USA, INC. | 6529 | INDEPNDNCE | OH |
| 2022-03-07 | 216-474-5XXX | T-MOBILE USA, INC. | 6529 | INDEPNDNCE | OH |
| 2022-03-07 | 216-474-6XXX | T-MOBILE USA, INC. | 6529 | INDEPNDNCE | OH |
| 2022-03-07 | 440-902-0XXX | T-MOBILE USA, INC. | 6529 | ELYRIA | OH |
| 2022-03-07 | 440-902-1XXX | T-MOBILE USA, INC. | 6529 | ELYRIA | OH |
| 2022-03-07 | 440-902-2XXX | T-MOBILE USA, INC. | 6529 | ELYRIA | OH |
| 2022-03-07 | 650-609-6XXX | T-MOBILE USA, INC. | 6529 | MILLBRAE | CA |
| 2022-03-07 | 650-609-7XXX | T-MOBILE USA, INC. | 6529 | MILLBRAE | CA |
| 2022-03-07 | 681-383-1XXX | T-MOBILE USA, INC. | 6529 | PTPLEASANT | WV |
| 2022-03-07 | 681-383-5XXX | T-MOBILE USA, INC. | 6529 | PTPLEASANT | WV |
| 2022-03-07 | 681-383-7XXX | T-MOBILE USA, INC. | 6529 | PTPLEASANT | WV |
| 2022-03-07 | 840-900-6XXX | T-MOBILE USA, INC. | 6529 | RIALTO | CA |
| 2022-03-07 | 840-900-7XXX | T-MOBILE USA, INC. | 6529 | RIALTO | CA |
| 2022-03-07 | 971-374-6XXX | T-MOBILE USA, INC. | 6529 | SALEM | OR |
| 2022-03-07 | 971-427-0XXX | T-MOBILE USA, INC. | 6529 | PORTLAND | OR |
| 2022-03-07 | 971-427-1XXX | T-MOBILE USA, INC. | 6529 | PORTLAND | OR |
| 2022-03-07 | 971-427-2XXX | T-MOBILE USA, INC. | 6529 | PORTLAND | OR |
| 2022-03-07 | 971-427-3XXX | T-MOBILE USA, INC. | 6529 | PORTLAND | OR |
| 2022-03-07 | 971-427-4XXX | T-MOBILE USA, INC. | 6529 | PORTLAND | OR |
| 2022-03-07 | 971-427-5XXX | T-MOBILE USA, INC. | 6529 | PORTLAND | OR |
| 2022-03-07 | 971-427-6XXX | T-MOBILE USA, INC. | 6529 | PORTLAND | OR |
| 2022-03-07 | 971-427-7XXX | T-MOBILE USA, INC. | 6529 | PORTLAND | OR |
| 2022-03-07 | 971-427-8XXX | T-MOBILE USA, INC. | 6529 | PORTLAND | OR |
| 2022-03-07 | 971-427-9XXX | T-MOBILE USA, INC. | 6529 | PORTLAND | OR |
| 2022-03-04 | 209-219-5XXX | T-MOBILE USA, INC. | 6529 | ATWATER | CA |
| 2022-03-04 | 209-864-0XXX | T-MOBILE USA, INC. | 6529 | ATWATER | CA |
| 2022-03-04 | 209-864-1XXX | T-MOBILE USA, INC. | 6529 | ATWATER | CA |
| 2022-03-04 | 209-875-4XXX | T-MOBILE USA, INC. | 6529 | MERCED | CA |
| 2022-03-04 | 209-875-5XXX | T-MOBILE USA, INC. | 6529 | MERCED | CA |
| 2022-03-04 | 442-944-7XXX | T-MOBILE USA, INC. | 6529 | VISTA | CA |
| 2022-03-04 | 442-944-8XXX | T-MOBILE USA, INC. | 6529 | VISTA | CA |
| 2022-03-04 | 530-690-6XXX | T-MOBILE USA, INC. | 6529 | RED BLUFF | 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.