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
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Oct 2025
| Assigned | Block | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 2022-06-06 | 872-453-8XXX | T-MOBILE USA, INC. | 6529 | CHICGOZN09 | IL |
| 2022-06-06 | 872-568-9XXX | T-MOBILE USA, INC. | 6529 | CHICGOZN07 | IL |
| 2022-06-03 | 440-841-4XXX | T-MOBILE USA, INC. | 6529 | ASHTABULA | OH |
| 2022-05-31 | 260-285-1XXX | T-MOBILE USA, INC. | 6529 | COLUMBIACY | IN |
| 2022-05-31 | 515-581-1XXX | T-MOBILE USA, INC. | 6529 | ADEL | IA |
| 2022-05-31 | 712-699-4XXX | T-MOBILE USA, INC. | 6529 | WALL LAKE | IA |
| 2022-05-31 | 712-699-6XXX | T-MOBILE USA, INC. | 6529 | WALL LAKE | IA |
| 2022-05-27 | 213-571-4XXX | T-MOBILE USA, INC. | 6529 | LSAN DA 10 | CA |
| 2022-05-27 | 213-571-5XXX | T-MOBILE USA, INC. | 6529 | LSAN DA 10 | CA |
| 2022-05-27 | 213-571-6XXX | T-MOBILE USA, INC. | 6529 | LSAN DA 10 | CA |
| 2022-05-27 | 213-571-7XXX | T-MOBILE USA, INC. | 6529 | LSAN DA 10 | CA |
| 2022-05-27 | 213-571-8XXX | T-MOBILE USA, INC. | 6529 | LSAN DA 10 | CA |
| 2022-05-27 | 213-571-9XXX | T-MOBILE USA, INC. | 6529 | LSAN DA 10 | CA |
| 2022-05-27 | 505-523-3XXX | T-MOBILE USA, INC. | 6529 | ALBUQURQUE | NM |
| 2022-05-27 | 505-523-4XXX | T-MOBILE USA, INC. | 6529 | ALBUQURQUE | NM |
| 2022-05-27 | 505-523-5XXX | T-MOBILE USA, INC. | 6529 | ALBUQURQUE | NM |
| 2022-05-27 | 505-523-6XXX | T-MOBILE USA, INC. | 6529 | ALBUQURQUE | NM |
| 2022-05-27 | 505-523-7XXX | T-MOBILE USA, INC. | 6529 | ALBUQURQUE | NM |
| 2022-05-27 | 505-523-8XXX | T-MOBILE USA, INC. | 6529 | ALBUQURQUE | NM |
| 2022-05-27 | 505-523-9XXX | T-MOBILE USA, INC. | 6529 | ALBUQURQUE | NM |
| 2022-05-27 | 564-209-4XXX | T-MOBILE USA, INC. | 6529 | WHATCOMCTY | WA |
| 2022-05-27 | 626-563-7XXX | T-MOBILE USA, INC. | 6529 | PSDN PSDN | CA |
| 2022-05-27 | 626-563-8XXX | T-MOBILE USA, INC. | 6529 | PSDN PSDN | CA |
| 2022-05-27 | 626-563-9XXX | T-MOBILE USA, INC. | 6529 | PSDN PSDN | CA |
| 2022-05-27 | 626-601-7XXX | T-MOBILE USA, INC. | 6529 | LA PUENTE | CA |
| 2022-05-27 | 626-601-8XXX | T-MOBILE USA, INC. | 6529 | LA PUENTE | CA |
| 2022-05-27 | 626-601-9XXX | T-MOBILE USA, INC. | 6529 | LA PUENTE | CA |
| 2022-05-27 | 737-323-0XXX | T-MOBILE USA, INC. | 6529 | LEANDER | TX |
| 2022-05-27 | 737-323-1XXX | T-MOBILE USA, INC. | 6529 | LEANDER | TX |
| 2022-05-27 | 737-323-2XXX | T-MOBILE USA, INC. | 6529 | LEANDER | TX |
| 2022-05-27 | 737-323-3XXX | T-MOBILE USA, INC. | 6529 | LEANDER | TX |
| 2022-05-27 | 737-323-4XXX | T-MOBILE USA, INC. | 6529 | LEANDER | TX |
| 2022-05-27 | 737-323-5XXX | T-MOBILE USA, INC. | 6529 | LEANDER | TX |
| 2022-05-27 | 737-323-6XXX | T-MOBILE USA, INC. | 6529 | LEANDER | TX |
| 2022-05-27 | 737-323-7XXX | T-MOBILE USA, INC. | 6529 | LEANDER | TX |
| 2022-05-27 | 737-323-8XXX | T-MOBILE USA, INC. | 6529 | LEANDER | TX |
| 2022-05-27 | 737-323-9XXX | T-MOBILE USA, INC. | 6529 | LEANDER | TX |
| 2022-05-27 | 737-324-0XXX | T-MOBILE USA, INC. | 6529 | LEANDER | TX |
| 2022-05-27 | 737-324-1XXX | T-MOBILE USA, INC. | 6529 | LEANDER | TX |
| 2022-05-27 | 737-324-2XXX | T-MOBILE USA, INC. | 6529 | LEANDER | TX |
| 2022-05-27 | 737-324-3XXX | T-MOBILE USA, INC. | 6529 | LEANDER | TX |
| 2022-05-27 | 737-324-9XXX | T-MOBILE USA, INC. | 6529 | LEANDER | TX |
| 2022-05-27 | 971-430-5XXX | T-MOBILE USA, INC. | 6529 | PORTLAND | OR |
| 2022-05-27 | 971-430-6XXX | T-MOBILE USA, INC. | 6529 | PORTLAND | OR |
| 2022-05-27 | 971-430-7XXX | T-MOBILE USA, INC. | 6529 | PORTLAND | OR |
| 2022-05-27 | 971-430-8XXX | T-MOBILE USA, INC. | 6529 | PORTLAND | OR |
| 2022-05-27 | 971-430-9XXX | T-MOBILE USA, INC. | 6529 | PORTLAND | OR |
| 2022-05-26 | 213-653-0XXX | T-MOBILE USA, INC. | 6529 | LSAN DA 10 | CA |
| 2022-05-26 | 213-653-1XXX | T-MOBILE USA, INC. | 6529 | LSAN DA 10 | CA |
| 2022-05-26 | 424-473-4XXX | T-MOBILE USA, INC. | 6529 | SAN PEDRO | CA |
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.