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 |
|---|---|---|---|---|---|
| 2022-07-22 | 620-454-6XXX | T-MOBILE USA, INC. | 6529 | ARKANSASCY | KS |
| 2022-07-22 | 620-454-7XXX | T-MOBILE USA, INC. | 6529 | ARKANSASCY | KS |
| 2022-07-22 | 620-454-8XXX | T-MOBILE USA, INC. | 6529 | ARKANSASCY | KS |
| 2022-07-22 | 620-454-9XXX | T-MOBILE USA, INC. | 6529 | ARKANSASCY | KS |
| 2022-07-22 | 620-602-9XXX | T-MOBILE USA, INC. | 6529 | KINGMAN | KS |
| 2022-07-22 | 626-613-9XXX | T-MOBILE USA, INC. | 6529 | ALHAMBRA | CA |
| 2022-07-22 | 657-612-9XXX | T-MOBILE USA, INC. | 6529 | GARDEN GRV | CA |
| 2022-07-21 | 206-750-5XXX | T-MOBILE USA, INC. | 6529 | SEATTLE | WA |
| 2022-07-21 | 206-750-6XXX | T-MOBILE USA, INC. | 6529 | SEATTLE | WA |
| 2022-07-21 | 206-750-7XXX | T-MOBILE USA, INC. | 6529 | SEATTLE | WA |
| 2022-07-21 | 217-933-0XXX | T-MOBILE USA, INC. | 6529 | HUMBOLDT | IL |
| 2022-07-21 | 219-298-0XXX | T-MOBILE USA, INC. | 6529 | E CHICAGO | IN |
| 2022-07-21 | 219-298-1XXX | T-MOBILE USA, INC. | 6529 | E CHICAGO | IN |
| 2022-07-21 | 219-298-2XXX | T-MOBILE USA, INC. | 6529 | E CHICAGO | IN |
| 2022-07-21 | 219-298-3XXX | T-MOBILE USA, INC. | 6529 | E CHICAGO | IN |
| 2022-07-21 | 219-466-0XXX | T-MOBILE USA, INC. | 6529 | E CHICAGO | IN |
| 2022-07-21 | 219-466-1XXX | T-MOBILE USA, INC. | 6529 | E CHICAGO | IN |
| 2022-07-21 | 310-300-6XXX | T-MOBILE USA, INC. | 6529 | BEVERLYHLS | CA |
| 2022-07-21 | 310-300-7XXX | T-MOBILE USA, INC. | 6529 | BEVERLYHLS | CA |
| 2022-07-21 | 310-867-8XXX | T-MOBILE USA, INC. | 6529 | BEVERLYHLS | CA |
| 2022-07-21 | 319-280-2XXX | T-MOBILE USA, INC. | 6529 | KEOSAUQUA | IA |
| 2022-07-21 | 319-280-3XXX | T-MOBILE USA, INC. | 6529 | KEOSAUQUA | IA |
| 2022-07-21 | 319-280-4XXX | T-MOBILE USA, INC. | 6529 | KEOSAUQUA | IA |
| 2022-07-21 | 424-333-7XXX | T-MOBILE USA, INC. | 6529 | BEVERLYHLS | CA |
| 2022-07-21 | 574-581-2XXX | T-MOBILE USA, INC. | 6529 | MONTICELLO | IN |
| 2022-07-21 | 574-581-3XXX | T-MOBILE USA, INC. | 6529 | MONTICELLO | IN |
| 2022-07-21 | 574-581-4XXX | T-MOBILE USA, INC. | 6529 | MONTICELLO | IN |
| 2022-07-21 | 626-410-2XXX | T-MOBILE USA, INC. | 6529 | SNGBLCNN | CA |
| 2022-07-21 | 626-828-9XXX | T-MOBILE USA, INC. | 6529 | SIERRAMADR | CA |
| 2022-07-21 | 657-610-4XXX | T-MOBILE USA, INC. | 6529 | SANTA ANA | CA |
| 2022-07-21 | 657-610-5XXX | T-MOBILE USA, INC. | 6529 | SANTA ANA | CA |
| 2022-07-21 | 657-610-6XXX | T-MOBILE USA, INC. | 6529 | SANTA ANA | CA |
| 2022-07-21 | 657-610-7XXX | T-MOBILE USA, INC. | 6529 | SANTA ANA | CA |
| 2022-07-21 | 669-321-9XXX | T-MOBILE USA, INC. | 6529 | SNJS SOUTH | CA |
| 2022-07-21 | 720-953-9XXX | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2022-07-21 | 779-276-2XXX | T-MOBILE USA, INC. | 6529 | DE KALB | IL |
| 2022-07-21 | 779-276-3XXX | T-MOBILE USA, INC. | 6529 | DE KALB | IL |
| 2022-07-21 | 779-276-4XXX | T-MOBILE USA, INC. | 6529 | DE KALB | IL |
| 2022-07-21 | 779-276-5XXX | T-MOBILE USA, INC. | 6529 | DE KALB | IL |
| 2022-07-21 | 779-276-6XXX | T-MOBILE USA, INC. | 6529 | DE KALB | IL |
| 2022-07-21 | 779-276-7XXX | T-MOBILE USA, INC. | 6529 | DE KALB | IL |
| 2022-07-21 | 779-276-8XXX | T-MOBILE USA, INC. | 6529 | DE KALB | IL |
| 2022-07-21 | 808-509-9XXX | T-MOBILE USA, INC. | 6529 | HONOLULU | HI |
| 2022-07-21 | 870-902-6XXX | T-MOBILE USA, INC. | 6529 | BLYTHEVL | AR |
| 2022-07-21 | 870-902-7XXX | T-MOBILE USA, INC. | 6529 | BLYTHEVL | AR |
| 2022-07-21 | 915-332-4XXX | T-MOBILE USA, INC. | 6529 | EL PASO | TX |
| 2022-07-21 | 915-332-5XXX | T-MOBILE USA, INC. | 6529 | EL PASO | TX |
| 2022-07-21 | 915-332-6XXX | T-MOBILE USA, INC. | 6529 | EL PASO | TX |
| 2022-07-21 | 915-332-7XXX | T-MOBILE USA, INC. | 6529 | EL PASO | TX |
| 2022-07-21 | 915-332-8XXX | T-MOBILE USA, INC. | 6529 | EL PASO | TX |
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.