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 |
|---|---|---|---|---|---|---|---|
| 2015-02-05 | 509-968-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | ELLENSBURG | WA |
| 2015-02-05 | 559-644-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | CARUTHERS | CA |
| 2015-02-05 | 559-644-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | CARUTHERS | CA |
| 2015-02-05 | 559-682-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | CARUTHERS | CA |
| 2015-02-05 | 559-682-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | CARUTHERS | CA |
| 2015-02-05 | 559-754-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | VISALIA | CA |
| 2015-02-05 | 562-418-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | DOWNEY | CA |
| 2015-02-05 | 562-584-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | NORWALK | CA |
| 2015-02-05 | 575-567-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | DEMING | NM |
| 2015-02-05 | 657-252-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | BUENA PARK | CA |
| 2015-02-05 | 909-551-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | DIAMONDBAR | CA |
| 2015-02-04 | 234-360-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | CANTON | OH |
| 2015-02-04 | 234-360-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | CANTON | OH |
| 2015-02-04 | 234-360-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | CANTON | OH |
| 2015-02-04 | 234-360-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | CANTON | OH |
| 2015-02-04 | 330-428-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | ALLIANCE | OH |
| 2015-02-04 | 330-428-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | ALLIANCE | OH |
| 2015-02-04 | 618-501-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | GRANITE CY | IL |
| 2015-02-04 | 814-844-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | ERIE | PA |
| 2015-02-04 | 814-844-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | ERIE | PA |
| 2015-02-04 | 814-844-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | ERIE | PA |
| 2015-02-04 | 814-844-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | ERIE | PA |
| 2015-02-04 | 937-952-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | DAYTON | OH |
| 2015-02-04 | 937-952-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | DAYTON | OH |
| 2015-02-04 | 937-952-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | DAYTON | OH |
| 2015-02-04 | 940-315-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | DENTON | TX |
| 2015-02-04 | 940-315-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | DENTON | TX |
| 2015-02-03 | 219-386-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | VALPARAISO | IN |
| 2015-02-03 | 262-873-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | WAUBEKA | WI |
| 2015-02-03 | 262-873-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | WAUBEKA | WI |
| 2015-02-03 | 323-561-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 03 | CA |
| 2015-02-03 | 323-561-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 03 | CA |
| 2015-02-03 | 323-561-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 03 | CA |
| 2015-02-03 | 323-561-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 03 | CA |
| 2015-02-03 | 323-561-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 03 | CA |
| 2015-02-03 | 323-561-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 03 | CA |
| 2015-02-03 | 405-404-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | CHANDLER | OK |
| 2015-02-03 | 405-404-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | CHANDLER | OK |
| 2015-02-03 | 414-269-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | MILWAUKZN1 | WI |
| 2015-02-03 | 414-554-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | MILWAUKZN1 | WI |
| 2015-02-03 | 414-885-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | MILWAUKZN1 | WI |
| 2015-02-03 | 414-885-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | MILWAUKZN1 | WI |
| 2015-02-03 | 414-885-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | MILWAUKZN1 | WI |
| 2015-02-03 | 414-885-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | MILWAUKZN1 | WI |
| 2015-02-03 | 510-944-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | OKLD BKLY | CA |
| 2015-02-03 | 510-944-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | OKLD BKLY | CA |
| 2015-02-03 | 510-944-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | OKLD BKLY | CA |
| 2015-02-03 | 520-788-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | CASAGRANDE | AZ |
| 2015-02-03 | 520-788-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | CASAGRANDE | AZ |
| 2015-02-03 | 559-545-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | CLOVIS | 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.