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 |
|---|---|---|---|---|---|---|---|
| 2009-07-20 | 859-916-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | COVINGTON | KY |
| 2009-07-16 | 303-856-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2009-07-16 | 303-856-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2009-07-16 | 303-856-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2009-07-16 | 720-216-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2009-07-16 | 720-975-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2009-07-16 | 909-272-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | ARROWHEAD | CA |
| 2009-07-10 | 330-824-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | WARREN | OH |
| 2009-07-10 | 509-406-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | YAKIMA | WA |
| 2009-07-10 | 509-406-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | YAKIMA | WA |
| 2009-07-08 | 510-423-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | OKLD BKLY | CA |
| 2009-07-08 | 510-423-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | OKLD BKLY | CA |
| 2009-07-08 | 626-759-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | ALHAMBRA | CA |
| 2009-07-08 | 626-759-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | ALHAMBRA | CA |
| 2009-07-08 | 626-759-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | ALHAMBRA | CA |
| 2009-07-07 | 720-209-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2009-07-07 | 720-236-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2009-07-07 | 720-266-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2009-07-07 | 720-266-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2009-07-07 | 720-270-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2009-07-07 | 720-285-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2009-07-07 | 720-285-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2009-07-07 | 720-285-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2009-07-07 | 720-285-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2009-07-07 | 720-285-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2009-07-07 | 720-285-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2009-07-07 | 720-292-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2009-07-07 | 720-292-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2009-07-07 | 720-317-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2009-07-07 | 720-317-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2009-07-07 | 720-317-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2009-07-07 | 720-362-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2009-07-07 | 720-472-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2009-07-07 | 720-472-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2009-07-07 | 720-473-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2009-07-07 | 720-473-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2009-07-07 | 720-473-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2009-07-07 | 720-473-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2009-07-07 | 720-473-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2009-07-07 | 720-579-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2009-07-07 | 720-579-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2009-07-07 | 720-840-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2009-07-07 | 720-840-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2009-07-06 | 319-693-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | CEDAR RPDS | IA |
| 2009-07-06 | 509-440-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | KENNEWICK | WA |
| 2009-07-06 | 509-440-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | KENNEWICK | WA |
| 2009-07-02 | 415-400-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | SNFC CNTRL | CA |
| 2009-07-02 | 415-400-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | SNFC CNTRL | CA |
| 2009-07-02 | 773-302-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | CHICGOZN02 | IL |
| 2009-07-02 | 773-302-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | CHICGOZN02 | IL |
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.