NumberResearchRecent thousands-block assignments
70 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/24/2026
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 |
|---|---|---|---|---|---|---|---|
| 2008-07-18 | 916-476-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | SCRM MAIN | CA |
| 2008-07-18 | 916-476-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | SCRM MAIN | CA |
| 2008-07-17 | 214-901-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | MCKINNEY | TX |
| 2008-07-17 | 214-901-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | MCKINNEY | TX |
| 2008-07-17 | 469-579-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | FRISCO | TX |
| 2008-07-17 | 469-579-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | FRISCO | TX |
| 2008-07-17 | 940-337-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | WICHITAFLS | TX |
| 2008-07-16 | 559-274-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | FRESNO | CA |
| 2008-07-15 | 513-206-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | CINCINNATI | OH |
| 2008-07-15 | 513-206-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | CINCINNATI | OH |
| 2008-07-15 | 513-206-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | CINCINNATI | OH |
| 2008-07-15 | 513-206-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | CINCINNATI | OH |
| 2008-07-15 | 779-245-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | STERLING | IL |
| 2008-07-15 | 779-245-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | STERLING | IL |
| 2008-07-15 | 801-819-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | SALT LAKE | UT |
| 2008-07-11 | 253-355-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | TACOMA | WA |
| 2008-07-11 | 971-240-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | SALEM | OR |
| 2008-07-10 | 623-552-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | PHOENIX | AZ |
| 2008-07-10 | 623-552-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | PHOENIX | AZ |
| 2008-07-09 | 425-516-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | BELLEVUE | WA |
| 2008-07-09 | 425-516-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | BELLEVUE | WA |
| 2008-07-09 | 509-823-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | YAKIMA | WA |
| 2008-07-09 | 520-445-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | TUCSON | AZ |
| 2008-07-09 | 619-878-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | CORONADO | CA |
| 2008-07-07 | 630-352-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | NAPERVILLE | IL |
| 2008-07-07 | 630-540-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | BARTLETT | IL |
| 2008-07-07 | 630-540-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | BARTLETT | IL |
| 2008-07-07 | 773-584-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | CHICGOZN06 | IL |
| 2008-07-07 | 773-584-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | CHICGOZN06 | IL |
| 2008-07-03 | 319-538-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | CEDAR RPDS | IA |
| 2008-07-03 | 330-356-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | ALLIANCE | OH |
| 2008-07-03 | 330-786-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | AKRON | OH |
| 2008-07-03 | 480-347-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | PHOENIX | AZ |
| 2008-07-03 | 480-347-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | PHOENIX | AZ |
| 2008-07-03 | 937-825-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | DAYTON | OH |
| 2008-07-03 | 937-830-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | DAYTON | OH |
| 2008-07-03 | 937-831-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | SPRINGFLD | OH |
| 2008-07-03 | 937-867-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | DAYTON | OH |
| 2008-07-03 | 937-867-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | DAYTON | OH |
| 2008-07-02 | 330-942-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | YOUNGSTOWN | OH |
| 2008-07-02 | 330-942-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | YOUNGSTOWN | OH |
| 2008-07-02 | 503-719-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | PORTLAND | OR |
| 2008-07-02 | 510-437-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | OKLD FRTVL | CA |
| 2008-07-01 | 331-575-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | AURORA | IL |
| 2008-06-30 | 805-464-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | ATASCADERO | CA |
| 2008-06-26 | 408-775-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | SNJS NORTH | CA |
| 2008-06-26 | 469-278-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | GRANDPRARI | TX |
| 2008-06-26 | 469-278-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | GRANDPRARI | TX |
| 2008-06-26 | 682-230-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | ARLINGTON | TX |
| 2008-06-26 | 682-230-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | ARLINGTON | TX |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/24/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.