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 |
|---|---|---|---|---|---|---|---|
| 2008-02-19 | 219-487-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | GARY | IN |
| 2008-02-19 | 219-487-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | GARY | IN |
| 2008-02-19 | 559-283-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | FRESNO | CA |
| 2008-02-19 | 618-917-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | WOOD RIVER | IL |
| 2008-02-19 | 619-488-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | SNDG SNDG | CA |
| 2008-02-19 | 714-471-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | ANAHEIM | CA |
| 2008-02-19 | 808-769-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | HILO | HI |
| 2008-02-15 | 253-327-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | TACOMA | WA |
| 2008-02-15 | 253-327-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | TACOMA | WA |
| 2008-02-15 | 630-397-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | GENEVA | IL |
| 2008-02-15 | 714-452-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | BUENA PARK | CA |
| 2008-02-14 | 254-251-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | KILLEEN | TX |
| 2008-02-14 | 316-847-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | WICHITA | KS |
| 2008-02-14 | 405-429-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | OKLA CITY | OK |
| 2008-02-14 | 405-887-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | OKLA CITY | OK |
| 2008-02-14 | 501-613-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | LITTLEROCK | AR |
| 2008-02-14 | 512-850-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | AUSTIN | TX |
| 2008-02-14 | 512-850-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | AUSTIN | TX |
| 2008-02-14 | 512-850-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | AUSTIN | TX |
| 2008-02-14 | 512-850-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | AUSTIN | TX |
| 2008-02-14 | 563-209-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | DAVENPORT | IA |
| 2008-02-14 | 563-209-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | DAVENPORT | IA |
| 2008-02-14 | 918-938-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | TULSA | OK |
| 2008-02-14 | 918-971-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | TULSA | OK |
| 2008-02-13 | 503-400-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | SALEM | OR |
| 2008-02-13 | 562-266-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | LA HABRA | CA |
| 2008-02-13 | 915-208-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | EL PASO | TX |
| 2008-02-13 | 916-914-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | SCRM MAIN | CA |
| 2008-02-13 | 916-914-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | SCRM MAIN | CA |
| 2008-02-11 | 312-532-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | CHICGOZN01 | IL |
| 2008-02-11 | 312-532-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | CHICGOZN01 | IL |
| 2008-02-11 | 479-715-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | BENTONVL | AR |
| 2008-02-08 | 209-670-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | STOCKTON | CA |
| 2008-02-08 | 330-391-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | MEDINA | OH |
| 2008-02-08 | 505-340-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | ALBUQURQUE | NM |
| 2008-02-08 | 509-396-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | KENNEWICK | WA |
| 2008-02-08 | 515-343-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | DES MOINES | IA |
| 2008-02-08 | 520-342-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | TUCSON | AZ |
| 2008-02-08 | 520-342-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | TUCSON | AZ |
| 2008-02-08 | 580-559-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | ADA | OK |
| 2008-02-08 | 719-243-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | COLORDOSPG | CO |
| 2008-02-08 | 720-579-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2008-02-08 | 831-512-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | SALINAS | CA |
| 2008-02-08 | 909-689-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | ETIWANDA | CA |
| 2008-02-08 | 949-973-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | CAPITRNVLY | CA |
| 2008-02-08 | 951-224-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | RIVERSIDE | CA |
| 2008-02-07 | 262-744-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | ALLENTON | WI |
| 2008-02-07 | 262-812-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | LAKEGENEVA | WI |
| 2008-02-07 | 262-865-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | RACINE | WI |
| 2008-02-07 | 304-910-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | BLUEFIELD | WV |
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.