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 |
|---|---|---|---|---|---|---|---|
| 2009-06-03 | 425-622-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | EVERETT | WA |
| 2009-06-02 | 559-975-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | MADERA | CA |
| 2009-06-01 | 903-495-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | PARIS | TX |
| 2009-05-28 | 650-229-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | LOS ALTOS | CA |
| 2009-05-28 | 650-276-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | HALFMOONBY | CA |
| 2009-05-28 | 650-691-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | MT VIEW | CA |
| 2009-05-28 | 814-790-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | ERIE | PA |
| 2009-05-28 | 814-790-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | ERIE | PA |
| 2009-05-21 | 626-371-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | ALHAMBRA | CA |
| 2009-05-21 | 626-371-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | ALHAMBRA | CA |
| 2009-05-20 | 501-613-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | LITTLEROCK | AR |
| 2009-05-20 | 720-532-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2009-05-20 | 720-532-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2009-05-20 | 720-532-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2009-05-20 | 720-532-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2009-05-20 | 937-329-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | DAYTON | OH |
| 2009-05-20 | 937-329-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | DAYTON | OH |
| 2009-05-19 | 909-270-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | CHINO | CA |
| 2009-05-18 | 224-523-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | ELGIN | IL |
| 2009-05-18 | 224-572-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | WAUKEGAN | IL |
| 2009-05-18 | 309-750-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | BLOOMINGTN | IL |
| 2009-05-18 | 630-765-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | WHEATON | IL |
| 2009-05-18 | 708-374-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | CHICAGOHTS | IL |
| 2009-05-18 | 708-374-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | CHICAGOHTS | IL |
| 2009-05-18 | 773-584-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | CHICGOZN06 | IL |
| 2009-05-18 | 773-584-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | CHICGOZN06 | IL |
| 2009-05-18 | 773-648-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | CHICGOZN06 | IL |
| 2009-05-14 | 440-210-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | PAINESVL | OH |
| 2009-05-13 | 206-787-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | SEATTLE | WA |
| 2009-05-13 | 206-787-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | SEATTLE | WA |
| 2009-05-13 | 314-498-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | LADUE | MO |
| 2009-05-13 | 314-498-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | LADUE | MO |
| 2009-05-13 | 314-498-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | LADUE | MO |
| 2009-05-13 | 314-498-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | LADUE | MO |
| 2009-05-13 | 509-987-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | KENNEWICK | WA |
| 2009-05-13 | 661-232-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | MOJAVE | CA |
| 2009-05-13 | 925-293-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | MARTINEZ | CA |
| 2009-05-12 | 208-740-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | PAYETTE | ID |
| 2009-05-12 | 312-262-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | CHICGOZN01 | IL |
| 2009-05-12 | 312-267-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | CHICGOZN01 | IL |
| 2009-05-12 | 312-348-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | CHICGOZN01 | IL |
| 2009-05-12 | 312-348-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | CHICGOZN01 | IL |
| 2009-05-12 | 312-489-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | CHICGOZN01 | IL |
| 2009-05-12 | 510-200-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | HAYWARD | CA |
| 2009-05-12 | 623-806-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | PHOENIX | AZ |
| 2009-05-08 | 541-497-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | ALBANY | OR |
| 2009-05-06 | 405-762-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | STILLWATER | OK |
| 2009-05-06 | 580-514-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | LAWTON | OK |
| 2009-05-06 | 618-823-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | GRANITE CY | IL |
| 2009-05-06 | 618-823-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | GRANITE CY | 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.