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 |
|---|---|---|---|---|---|---|---|
| 2015-01-09 | 213-257-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 01 | CA |
| 2015-01-09 | 213-257-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 01 | CA |
| 2015-01-09 | 510-309-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | ELSBR-PINL | CA |
| 2015-01-09 | 510-309-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | ELSBR-PINL | CA |
| 2015-01-09 | 512-332-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | BASTROP | TX |
| 2015-01-09 | 512-332-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | BASTROP | TX |
| 2015-01-09 | 512-521-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | BASTROP | TX |
| 2015-01-09 | 512-521-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | BASTROP | TX |
| 2015-01-09 | 512-549-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | BASTROP | TX |
| 2015-01-09 | 512-772-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | BASTROP | TX |
| 2015-01-09 | 512-772-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | BASTROP | TX |
| 2015-01-09 | 512-988-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | BASTROP | TX |
| 2015-01-09 | 562-521-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | NORWALK | CA |
| 2015-01-09 | 661-497-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | BKFD MAIN | CA |
| 2015-01-09 | 760-909-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | EL CENTRO | CA |
| 2015-01-09 | 818-210-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | NO HOLLYWD | CA |
| 2015-01-09 | 909-571-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | S BERNDINO | CA |
| 2015-01-09 | 909-582-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | ARROWHEAD | CA |
| 2015-01-09 | 916-495-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | SCRM NORTH | CA |
| 2015-01-09 | 916-495-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | SCRM NORTH | CA |
| 2015-01-08 | 323-696-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 09 | CA |
| 2015-01-08 | 323-776-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 09 | CA |
| 2015-01-08 | 323-781-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 09 | CA |
| 2015-01-08 | 323-834-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 09 | CA |
| 2015-01-08 | 323-891-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 14 | CA |
| 2015-01-08 | 323-891-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 14 | CA |
| 2015-01-08 | 323-891-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 14 | CA |
| 2015-01-08 | 323-891-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 14 | CA |
| 2015-01-08 | 323-891-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 14 | CA |
| 2015-01-08 | 408-669-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | SNJS SOUTH | CA |
| 2015-01-08 | 408-669-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | SNJS SOUTH | CA |
| 2015-01-08 | 424-353-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | SNMN MRVS | CA |
| 2015-01-08 | 424-367-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | EL SEGUNDO | CA |
| 2015-01-08 | 424-374-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | HAWTHORNE | CA |
| 2015-01-08 | 424-382-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | BEVERLYHLS | CA |
| 2015-01-08 | 424-382-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | BEVERLYHLS | CA |
| 2015-01-08 | 559-724-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | FRESNO | CA |
| 2015-01-08 | 559-724-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | FRESNO | CA |
| 2015-01-08 | 559-724-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | FRESNO | CA |
| 2015-01-08 | 559-724-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | FRESNO | CA |
| 2015-01-08 | 559-826-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | CLOVIS | CA |
| 2015-01-08 | 661-451-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | ARVIN | CA |
| 2015-01-08 | 707-862-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | FRFLD-SUIS | CA |
| 2015-01-08 | 760-499-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | RIDGECREST | CA |
| 2015-01-08 | 805-668-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | ARROYOGRND | CA |
| 2015-01-08 | 909-642-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | FONTANA | CA |
| 2015-01-08 | 909-642-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | FONTANA | CA |
| 2015-01-08 | 909-642-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | FONTANA | CA |
| 2015-01-08 | 909-676-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | RIALTO | CA |
| 2015-01-08 | 909-678-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | ONTARIO | 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.