NumberResearchRecent thousands-block assignments
76 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/18/2026
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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Dec 2025
Nov 2025
Oct 2025
| Assigned | Block | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 2026-04-02 | 235-221-5XXX | T-MOBILE USA, INC. | 6529 | JEFFERSNCY | MO |
| 2026-04-02 | 235-229-2XXX | T-MOBILE USA, INC. | 6529 | CAMDENTON | MO |
| 2026-04-02 | 319-424-5XXX | T-MOBILE USA, INC. | 6529 | CEDAR RPDS | IA |
| 2026-04-02 | 319-503-4XXX | T-MOBILE USA, INC. | 6529 | CEDAR RPDS | IA |
| 2026-04-02 | 319-701-2XXX | T-MOBILE USA, INC. | 6529 | CEDAR RPDS | IA |
| 2026-04-02 | 464-283-2XXX | T-MOBILE USA, INC. | 6529 | BLUEISLAND | IL |
| 2026-04-02 | 464-283-7XXX | T-MOBILE USA, INC. | 6529 | BLUEISLAND | IL |
| 2026-04-02 | 636-313-9XXX | T-MOBILE USA, INC. | 6529 | MANCHESTER | MO |
| 2026-04-02 | 682-441-8XXX | T-MOBILE USA, INC. | 6529 | MANSFIELD | TX |
| 2026-04-02 | 682-492-2XXX | T-MOBILE USA, INC. | 6529 | FORT WORTH | TX |
| 2026-04-02 | 682-492-8XXX | T-MOBILE USA, INC. | 6529 | FORT WORTH | TX |
| 2026-04-02 | 682-492-9XXX | T-MOBILE USA, INC. | 6529 | FORT WORTH | TX |
| 2026-04-02 | 726-265-3XXX | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2026-04-02 | 726-265-4XXX | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2026-04-02 | 726-265-5XXX | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2026-04-02 | 726-265-6XXX | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2026-04-02 | 726-265-7XXX | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2026-04-02 | 726-272-0XXX | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2026-04-02 | 726-272-1XXX | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2026-04-02 | 726-272-2XXX | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2026-04-02 | 726-272-3XXX | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2026-04-02 | 726-272-4XXX | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2026-04-02 | 726-272-5XXX | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2026-04-02 | 726-272-6XXX | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2026-04-02 | 726-272-7XXX | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2026-04-02 | 726-272-8XXX | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2026-04-02 | 726-272-9XXX | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2026-04-02 | 817-520-0XXX | T-MOBILE USA, INC. | 6529 | NRICHLDHLS | TX |
| 2026-04-02 | 817-520-1XXX | T-MOBILE USA, INC. | 6529 | NRICHLDHLS | TX |
| 2026-04-02 | 817-520-2XXX | T-MOBILE USA, INC. | 6529 | NRICHLDHLS | TX |
| 2026-04-02 | 817-520-3XXX | T-MOBILE USA, INC. | 6529 | NRICHLDHLS | TX |
| 2026-04-02 | 817-728-9XXX | T-MOBILE USA, INC. | 6529 | MANSFIELD | TX |
| 2026-03-30 | 360-494-1XXX | T-MOBILE USA, INC. | 6529 | MORTON | WA |
| 2026-03-26 | 369-233-3XXX | T-MOBILE USA, INC. | 6529 | LAKEPORT | CA |
| 2026-03-26 | 369-238-2XXX | T-MOBILE USA, INC. | 6529 | HEALDSBURG | CA |
| 2026-03-26 | 707-680-6XXX | T-MOBILE USA, INC. | 6529 | WILLITS | CA |
| 2026-03-18 | 707-355-8XXX | T-MOBILE USA, INC. | 6529 | MIDDLETOWN | CA |
| 2026-03-18 | 925-331-5XXX | T-MOBILE USA, INC. | 6529 | ANTIOCH | CA |
| 2026-03-18 | 925-554-2XXX | T-MOBILE USA, INC. | 6529 | ANTIOCH | CA |
| 2026-03-18 | 925-554-3XXX | T-MOBILE USA, INC. | 6529 | ANTIOCH | CA |
| 2026-03-18 | 925-554-4XXX | T-MOBILE USA, INC. | 6529 | ANTIOCH | CA |
| 2026-03-13 | 360-861-0XXX | T-MOBILE USA, INC. | 6529 | ELMA | WA |
| 2026-03-11 | 820-235-7XXX | T-MOBILE USA, INC. | 6529 | VNTRA CNTL | CA |
| 2026-03-11 | 820-235-8XXX | T-MOBILE USA, INC. | 6529 | VNTRA CNTL | CA |
| 2026-03-11 | 949-820-0XXX | T-MOBILE USA, INC. | 6529 | NEWPORTBCH | CA |
| 2026-03-11 | 949-948-5XXX | T-MOBILE USA, INC. | 6529 | NEWPORTBCH | CA |
| 2026-03-11 | 949-948-6XXX | T-MOBILE USA, INC. | 6529 | NEWPORTBCH | CA |
| 2026-03-11 | 951-803-4XXX | T-MOBILE USA, INC. | 6529 | PERRIS | CA |
| 2026-03-11 | 951-832-6XXX | T-MOBILE USA, INC. | 6529 | PERRIS | CA |
| 2026-03-11 | 951-832-7XXX | T-MOBILE USA, INC. | 6529 | PERRIS | CA |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/18/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.