NumberResearchRecent thousands-block assignments
59 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/22/2026
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 |
|---|---|---|---|---|---|---|---|
| 2007-06-14 | 510-926-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | OKLD BKLY | CA |
| 2007-06-14 | 562-608-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | LAKEWOOD | CA |
| 2007-06-14 | 562-608-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | LAKEWOOD | CA |
| 2007-06-14 | 562-608-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | LAKEWOOD | CA |
| 2007-06-14 | 623-249-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | PHOENIX | AZ |
| 2007-06-14 | 707-347-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | PTLM MAIN | CA |
| 2007-06-14 | 760-689-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | FALLBROOK | CA |
| 2007-06-14 | 928-266-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | FLAGSTAFF | AZ |
| 2007-06-14 | 928-266-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | FLAGSTAFF | AZ |
| 2007-06-13 | 424-270-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | W ANGELES | CA |
| 2007-06-13 | 424-270-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | W ANGELES | CA |
| 2007-06-13 | 505-702-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | ALBUQURQUE | NM |
| 2007-06-13 | 708-262-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | TINLEYPARK | IL |
| 2007-06-13 | 708-262-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | TINLEYPARK | IL |
| 2007-06-13 | 714-204-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | ANAHEIM | CA |
| 2007-06-13 | 773-313-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | CHICGOZN02 | IL |
| 2007-06-13 | 773-681-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | CHICGOZN02 | IL |
| 2007-06-13 | 773-681-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | CHICGOZN02 | IL |
| 2007-06-13 | 818-217-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | SNFN GRHL | CA |
| 2007-06-12 | 206-832-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | SEATTLE | WA |
| 2007-06-12 | 209-346-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | TRACY | CA |
| 2007-06-12 | 209-846-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | MODESTO | CA |
| 2007-06-12 | 360-350-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | OLYMPIA | WA |
| 2007-06-12 | 360-632-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | OAK HARBOR | WA |
| 2007-06-12 | 510-894-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | FRNK MAIN | CA |
| 2007-06-12 | 619-259-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | NATIONALCY | CA |
| 2007-06-12 | 619-490-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | LA MESA | CA |
| 2007-06-12 | 626-709-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | LA PUENTE | CA |
| 2007-06-12 | 714-589-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | GARDEN GRV | CA |
| 2007-06-12 | 760-587-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | BRAWLEY | CA |
| 2007-06-12 | 916-596-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | SCRM MAIN | CA |
| 2007-06-12 | 951-216-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | TEMECULA | CA |
| 2007-06-11 | 708-663-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | CHICAGOHTS | IL |
| 2007-06-11 | 708-663-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | CHICAGOHTS | IL |
| 2007-06-11 | 708-663-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | CHICAGOHTS | IL |
| 2007-06-11 | 708-663-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | CHICAGOHTS | IL |
| 2007-06-11 | 815-630-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | JOLIET | IL |
| 2007-06-11 | 847-739-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | LAKEFOREST | IL |
| 2007-06-08 | 208-240-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | POCATELLO | ID |
| 2007-06-08 | 323-448-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 09 | CA |
| 2007-06-08 | 323-448-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 09 | CA |
| 2007-06-08 | 323-448-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 09 | CA |
| 2007-06-08 | 323-470-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 03 | CA |
| 2007-06-08 | 323-470-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 03 | CA |
| 2007-06-08 | 323-470-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 03 | CA |
| 2007-06-08 | 323-682-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 03 | CA |
| 2007-06-08 | 323-747-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 03 | CA |
| 2007-06-08 | 360-643-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | PTTOWNSEND | WA |
| 2007-06-08 | 424-206-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | REDONDO | CA |
| 2007-06-08 | 650-283-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | PALO ALTO | CA |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/22/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.