NumberResearchRecent thousands-block assignments
59 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/23/2026
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 |
|---|---|---|---|---|---|---|---|
| 2008-04-15 | 414-208-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | MILWAUKZN1 | WI |
| 2008-04-15 | 414-231-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | MILWAUKZN1 | WI |
| 2008-04-15 | 414-231-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | MILWAUKZN1 | WI |
| 2008-04-11 | 314-620-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | KIRKWOOD | MO |
| 2008-04-11 | 641-251-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | FORESTCITY | IA |
| 2008-04-11 | 641-909-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | LAKE MILLS | IA |
| 2008-04-10 | 210-251-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2008-04-10 | 210-251-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2008-04-10 | 210-519-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2008-04-10 | 210-519-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2008-04-10 | 210-519-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2008-04-10 | 210-544-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2008-04-10 | 210-544-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2008-04-10 | 210-589-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2008-04-10 | 440-654-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | LORAIN | OH |
| 2008-04-10 | 440-654-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | LORAIN | OH |
| 2008-04-10 | 501-613-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | LITTLEROCK | AR |
| 2008-04-10 | 580-715-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | CLINTON | OK |
| 2008-04-10 | 580-917-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | LAWTON | OK |
| 2008-04-09 | 216-482-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | CLEVELAND | OH |
| 2008-04-09 | 216-835-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | CLEVELAND | OH |
| 2008-04-09 | 216-835-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | CLEVELAND | OH |
| 2008-04-09 | 216-835-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | CLEVELAND | OH |
| 2008-04-09 | 216-835-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | CLEVELAND | OH |
| 2008-04-09 | 330-794-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | AKRON | OH |
| 2008-04-09 | 330-798-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | AKRON | OH |
| 2008-04-09 | 330-945-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | AKRON | OH |
| 2008-04-08 | 217-819-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | CHAMPAURBN | IL |
| 2008-04-08 | 316-300-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | WICHITA | KS |
| 2008-04-08 | 316-300-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | WICHITA | KS |
| 2008-04-08 | 330-949-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | CANTON | OH |
| 2008-04-08 | 330-949-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | CANTON | OH |
| 2008-04-08 | 330-974-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | WARREN | OH |
| 2008-04-08 | 440-458-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | ELYRIA | OH |
| 2008-04-08 | 530-566-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | CHICO | CA |
| 2008-04-08 | 562-338-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | ALAMITOS | CA |
| 2008-04-08 | 618-709-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | GRANITE CY | IL |
| 2008-04-08 | 630-312-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | LEMONT | IL |
| 2008-04-08 | 650-931-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | SAN MATEO | CA |
| 2008-04-08 | 808-679-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | HONOLULU | HI |
| 2008-04-08 | 937-789-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | DAYTON | OH |
| 2008-04-08 | 937-789-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | DAYTON | OH |
| 2008-04-08 | 937-789-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | DAYTON | OH |
| 2008-04-07 | 408-856-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | SNJS NORTH | CA |
| 2008-04-07 | 708-949-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | ORLAND | IL |
| 2008-04-07 | 815-319-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | ROCKFORD | IL |
| 2008-04-04 | 909-570-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | CALIMESA | CA |
| 2008-04-02 | 206-327-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | SEATTLE | WA |
| 2008-04-02 | 206-327-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | SEATTLE | WA |
| 2008-04-02 | 206-455-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | SEATTLE | WA |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/23/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.