NumberResearchRecent thousands-block assignments
68 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/27/2026
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 | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2015-07-09 | 323-977-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 09 | CA |
| 2015-07-08 | 510-850-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | OKLD TRNID | CA |
| 2015-07-08 | 650-382-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | PALO ALTO | CA |
| 2015-07-08 | 650-382-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | PALO ALTO | CA |
| 2015-07-08 | 650-382-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | PALO ALTO | CA |
| 2015-07-08 | 650-469-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | LOS ALTOS | CA |
| 2015-07-08 | 650-469-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | LOS ALTOS | CA |
| 2015-07-08 | 650-469-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | LOS ALTOS | CA |
| 2015-07-08 | 650-559-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | LOS ALTOS | CA |
| 2015-07-08 | 650-665-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | PALO ALTO | CA |
| 2015-07-07 | 424-527-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | BEVERLYHLS | CA |
| 2015-07-07 | 424-527-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | BEVERLYHLS | CA |
| 2015-07-07 | 424-527-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | BEVERLYHLS | CA |
| 2015-07-07 | 424-527-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | BEVERLYHLS | CA |
| 2015-07-07 | 424-527-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | BEVERLYHLS | CA |
| 2015-07-07 | 424-527-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | BEVERLYHLS | CA |
| 2015-07-07 | 424-527-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | BEVERLYHLS | CA |
| 2015-07-07 | 469-655-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | FORNEY | TX |
| 2015-07-07 | 469-655-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | FORNEY | TX |
| 2015-07-07 | 469-655-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | FORNEY | TX |
| 2015-07-07 | 469-655-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | FORNEY | TX |
| 2015-07-07 | 469-655-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | FORNEY | TX |
| 2015-07-07 | 469-655-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | FORNEY | TX |
| 2015-07-07 | 707-805-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | VALLEJO | CA |
| 2015-07-07 | 707-805-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | VALLEJO | CA |
| 2015-07-07 | 916-750-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | SCRM NORTH | CA |
| 2015-07-07 | 916-750-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | SCRM NORTH | CA |
| 2015-07-07 | 916-750-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | SCRM NORTH | CA |
| 2015-07-07 | 916-750-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | SCRM NORTH | CA |
| 2015-07-06 | 559-330-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | MADERA | CA |
| 2015-07-06 | 559-330-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | MADERA | CA |
| 2015-07-01 | 209-502-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | RIVERBANK | CA |
| 2015-07-01 | 415-996-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | IGNACIO | CA |
| 2015-07-01 | 415-996-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | IGNACIO | CA |
| 2015-07-01 | 469-720-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | FORNEY | TX |
| 2015-07-01 | 469-720-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | FORNEY | TX |
| 2015-07-01 | 469-720-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | FORNEY | TX |
| 2015-07-01 | 469-720-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | FORNEY | TX |
| 2015-07-01 | 509-212-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | KENNEWICK | WA |
| 2015-07-01 | 509-598-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | SPOKANE | WA |
| 2015-07-01 | 509-598-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | SPOKANE | WA |
| 2015-07-01 | 512-806-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | AUSTIN | TX |
| 2015-07-01 | 512-806-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | AUSTIN | TX |
| 2015-07-01 | 512-817-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | LEANDER | TX |
| 2015-07-01 | 512-817-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | LEANDER | TX |
| 2015-07-01 | 650-785-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | PALO ALTO | CA |
| 2015-07-01 | 650-785-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | PALO ALTO | CA |
| 2015-07-01 | 650-785-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | PALO ALTO | CA |
| 2015-07-01 | 657-236-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | ORANGE | CA |
| 2015-07-01 | 657-274-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | ORANGE | CA |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/27/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.