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
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2015-12-14 | 707-708-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | SANTA ROSA | CA |
| 2015-12-14 | 805-819-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | LOMPOC | CA |
| 2015-12-14 | 909-745-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | RIALTO | CA |
| 2015-12-14 | 909-745-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | RIALTO | CA |
| 2015-12-14 | 909-745-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | RIALTO | CA |
| 2015-12-14 | 909-745-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | RIALTO | CA |
| 2015-12-11 | 650-733-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | PACIFICA | CA |
| 2015-12-11 | 760-677-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | RIDGECREST | CA |
| 2015-12-09 | 208-509-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | BOISE | ID |
| 2015-12-09 | 208-509-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | BOISE | ID |
| 2015-12-09 | 208-509-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | BOISE | ID |
| 2015-12-09 | 208-509-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | BOISE | ID |
| 2015-12-09 | 208-509-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | BOISE | ID |
| 2015-12-08 | 636-312-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | OFALLON | MO |
| 2015-12-08 | 636-312-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | OFALLON | MO |
| 2015-12-07 | 724-551-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | SHARON | PA |
| 2015-12-07 | 805-825-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | ARROYOGRND | CA |
| 2015-12-04 | 253-263-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | AUBURN | WA |
| 2015-12-03 | 618-365-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | COLLINSVL | IL |
| 2015-12-03 | 618-365-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | COLLINSVL | IL |
| 2015-12-03 | 619-751-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | CHULAVISTA | CA |
| 2015-12-03 | 619-751-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | CHULAVISTA | CA |
| 2015-12-03 | 619-874-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | CHULAVISTA | CA |
| 2015-12-03 | 619-874-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | CHULAVISTA | CA |
| 2015-12-03 | 619-874-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | CHULAVISTA | CA |
| 2015-12-03 | 619-874-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | CHULAVISTA | CA |
| 2015-11-30 | 262-612-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | KENOSHA | WI |
| 2015-11-30 | 262-612-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | KENOSHA | WI |
| 2015-11-30 | 262-612-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | KENOSHA | WI |
| 2015-11-30 | 479-231-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | SPRINGDALE | AR |
| 2015-11-30 | 479-231-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | SPRINGDALE | AR |
| 2015-11-30 | 573-832-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | VERSAILLES | MO |
| 2015-11-27 | 262-475-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | LAKEGENEVA | WI |
| 2015-11-25 | 219-243-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | MICHIGANCY | IN |
| 2015-11-25 | 331-253-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | LEMONT | IL |
| 2015-11-25 | 435-704-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | CEDAR CITY | UT |
| 2015-11-25 | 435-704-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | CEDAR CITY | UT |
| 2015-11-25 | 469-987-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | GRANDPRARI | TX |
| 2015-11-25 | 469-987-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | GRANDPRARI | TX |
| 2015-11-25 | 469-987-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | GRANDPRARI | TX |
| 2015-11-25 | 469-987-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | GRANDPRARI | TX |
| 2015-11-25 | 562-632-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | WHITTIER | CA |
| 2015-11-25 | 562-632-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | WHITTIER | CA |
| 2015-11-25 | 562-632-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | WHITTIER | CA |
| 2015-11-24 | 210-847-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2015-11-24 | 210-847-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2015-11-24 | 210-847-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2015-11-24 | 210-847-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2015-11-24 | 210-847-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2015-11-24 | 210-847-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
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.