NumberResearchRecent thousands-block assignments
76 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026
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
Aug 2026
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Apr 2026
Mar 2026
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Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | Block | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 2022-05-26 | 424-473-5XXX | T-MOBILE USA, INC. | 6529 | SAN PEDRO | CA |
| 2022-05-26 | 424-473-6XXX | T-MOBILE USA, INC. | 6529 | SAN PEDRO | CA |
| 2022-05-26 | 442-375-6XXX | T-MOBILE USA, INC. | 6529 | OCSD OCSD | CA |
| 2022-05-26 | 559-649-6XXX | T-MOBILE USA, INC. | 6529 | CLOVIS | CA |
| 2022-05-26 | 559-649-7XXX | T-MOBILE USA, INC. | 6529 | CLOVIS | CA |
| 2022-05-26 | 559-649-8XXX | T-MOBILE USA, INC. | 6529 | CLOVIS | CA |
| 2022-05-26 | 626-776-7XXX | T-MOBILE USA, INC. | 6529 | ALHAMBRA | CA |
| 2022-05-26 | 626-776-8XXX | T-MOBILE USA, INC. | 6529 | ALHAMBRA | CA |
| 2022-05-26 | 626-776-9XXX | T-MOBILE USA, INC. | 6529 | ALHAMBRA | CA |
| 2022-05-26 | 626-949-4XXX | T-MOBILE USA, INC. | 6529 | ALHAMBRA | CA |
| 2022-05-26 | 626-949-5XXX | T-MOBILE USA, INC. | 6529 | ALHAMBRA | CA |
| 2022-05-26 | 626-949-7XXX | T-MOBILE USA, INC. | 6529 | ALHAMBRA | CA |
| 2022-05-26 | 707-913-5XXX | T-MOBILE USA, INC. | 6529 | NAPA | CA |
| 2022-05-26 | 707-913-6XXX | T-MOBILE USA, INC. | 6529 | NAPA | CA |
| 2022-05-26 | 747-306-3XXX | T-MOBILE USA, INC. | 6529 | GLENDALE | CA |
| 2022-05-26 | 747-306-4XXX | T-MOBILE USA, INC. | 6529 | GLENDALE | CA |
| 2022-05-26 | 747-321-4XXX | T-MOBILE USA, INC. | 6529 | SNFN PACM | CA |
| 2022-05-26 | 747-321-5XXX | T-MOBILE USA, INC. | 6529 | SNFN PACM | CA |
| 2022-05-26 | 747-441-6XXX | T-MOBILE USA, INC. | 6529 | GLENDALE | CA |
| 2022-05-26 | 747-767-0XXX | T-MOBILE USA, INC. | 6529 | SNFN GRHL | CA |
| 2022-05-26 | 747-767-1XXX | T-MOBILE USA, INC. | 6529 | SNFN GRHL | CA |
| 2022-05-26 | 805-624-8XXX | T-MOBILE USA, INC. | 6529 | SIMIVALLEY | CA |
| 2022-05-26 | 806-560-0XXX | T-MOBILE USA, INC. | 6529 | AMARILLO | TX |
| 2022-05-26 | 806-560-2XXX | T-MOBILE USA, INC. | 6529 | AMARILLO | TX |
| 2022-05-26 | 806-560-3XXX | T-MOBILE USA, INC. | 6529 | AMARILLO | TX |
| 2022-05-26 | 971-421-5XXX | T-MOBILE USA, INC. | 6529 | PORTLAND | OR |
| 2022-05-26 | 971-429-8XXX | T-MOBILE USA, INC. | 6529 | PORTLAND | OR |
| 2022-05-26 | 971-429-9XXX | T-MOBILE USA, INC. | 6529 | PORTLAND | OR |
| 2022-05-25 | 208-760-5XXX | T-MOBILE USA, INC. | 6529 | POCATELLO | ID |
| 2022-05-25 | 303-414-0XXX | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2022-05-25 | 303-414-3XXX | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2022-05-25 | 303-414-8XXX | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2022-05-25 | 303-414-9XXX | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2022-05-25 | 307-414-6XXX | T-MOBILE USA, INC. | 6529 | CHEYENNE | WY |
| 2022-05-25 | 307-414-7XXX | T-MOBILE USA, INC. | 6529 | CHEYENNE | WY |
| 2022-05-25 | 505-518-0XXX | T-MOBILE USA, INC. | 6529 | ALBUQURQUE | NM |
| 2022-05-25 | 505-518-1XXX | T-MOBILE USA, INC. | 6529 | ALBUQURQUE | NM |
| 2022-05-25 | 505-518-2XXX | T-MOBILE USA, INC. | 6529 | ALBUQURQUE | NM |
| 2022-05-25 | 575-240-6XXX | T-MOBILE USA, INC. | 6529 | TAOS | NM |
| 2022-05-25 | 575-463-0XXX | T-MOBILE USA, INC. | 6529 | LAS CRUCES | NM |
| 2022-05-25 | 575-463-1XXX | T-MOBILE USA, INC. | 6529 | LAS CRUCES | NM |
| 2022-05-25 | 575-463-2XXX | T-MOBILE USA, INC. | 6529 | LAS CRUCES | NM |
| 2022-05-25 | 575-463-3XXX | T-MOBILE USA, INC. | 6529 | LAS CRUCES | NM |
| 2022-05-25 | 575-463-4XXX | T-MOBILE USA, INC. | 6529 | LAS CRUCES | NM |
| 2022-05-25 | 626-240-6XXX | T-MOBILE USA, INC. | 6529 | PSDN PSDN | CA |
| 2022-05-25 | 626-989-3XXX | T-MOBILE USA, INC. | 6529 | PSDN PSDN | CA |
| 2022-05-25 | 719-877-3XXX | T-MOBILE USA, INC. | 6529 | PUEBLO | CO |
| 2022-05-25 | 719-877-4XXX | T-MOBILE USA, INC. | 6529 | PUEBLO | CO |
| 2022-05-25 | 719-877-5XXX | T-MOBILE USA, INC. | 6529 | PUEBLO | CO |
| 2022-05-25 | 719-877-6XXX | T-MOBILE USA, INC. | 6529 | PUEBLO | CO |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.