NumberResearchRecent thousands-block assignments
76 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 2026-04
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 |
|---|---|---|---|---|---|
| 2025-04-08 | 817-256-6XXX | T-MOBILE USA, INC. | 6529 | FORT WORTH | TX |
| 2025-04-08 | 817-256-7XXX | T-MOBILE USA, INC. | 6529 | FORT WORTH | TX |
| 2025-04-08 | 817-256-8XXX | T-MOBILE USA, INC. | 6529 | FORT WORTH | TX |
| 2025-04-08 | 817-720-2XXX | T-MOBILE USA, INC. | 6529 | FORT WORTH | TX |
| 2025-04-08 | 817-747-7XXX | T-MOBILE USA, INC. | 6529 | NRICHLDHLS | TX |
| 2025-04-08 | 817-747-8XXX | T-MOBILE USA, INC. | 6529 | NRICHLDHLS | TX |
| 2025-04-08 | 817-747-9XXX | T-MOBILE USA, INC. | 6529 | NRICHLDHLS | TX |
| 2025-04-08 | 951-771-7XXX | T-MOBILE USA, INC. | 6529 | WOODCREST | CA |
| 2025-04-08 | 951-771-9XXX | T-MOBILE USA, INC. | 6529 | WOODCREST | CA |
| 2025-04-08 | 972-917-7XXX | T-MOBILE USA, INC. | 6529 | DALLAS | TX |
| 2025-04-08 | 972-917-8XXX | T-MOBILE USA, INC. | 6529 | DALLAS | TX |
| 2025-04-08 | 972-917-9XXX | T-MOBILE USA, INC. | 6529 | DALLAS | TX |
| 2025-04-08 | 972-918-1XXX | T-MOBILE USA, INC. | 6529 | DALLAS | TX |
| 2025-04-08 | 972-918-4XXX | T-MOBILE USA, INC. | 6529 | DALLAS | TX |
| 2025-04-08 | 972-927-0XXX | T-MOBILE USA, INC. | 6529 | DALLAS | TX |
| 2025-04-08 | 972-927-1XXX | T-MOBILE USA, INC. | 6529 | DALLAS | TX |
| 2025-04-08 | 972-927-2XXX | T-MOBILE USA, INC. | 6529 | DALLAS | TX |
| 2025-04-08 | 972-927-3XXX | T-MOBILE USA, INC. | 6529 | DALLAS | TX |
| 2025-04-08 | 972-927-4XXX | T-MOBILE USA, INC. | 6529 | DALLAS | TX |
| 2025-04-04 | 350-233-3XXX | T-MOBILE USA, INC. | 6529 | ATWATER | CA |
| 2025-04-04 | 350-233-4XXX | T-MOBILE USA, INC. | 6529 | ATWATER | CA |
| 2025-04-04 | 350-233-5XXX | T-MOBILE USA, INC. | 6529 | ATWATER | CA |
| 2025-04-04 | 350-233-6XXX | T-MOBILE USA, INC. | 6529 | ATWATER | CA |
| 2025-04-04 | 350-233-7XXX | T-MOBILE USA, INC. | 6529 | ATWATER | CA |
| 2025-04-03 | 283-218-2XXX | T-MOBILE USA, INC. | 6529 | CLERMONT | OH |
| 2025-04-03 | 283-218-6XXX | T-MOBILE USA, INC. | 6529 | CLERMONT | OH |
| 2025-04-03 | 283-234-9XXX | T-MOBILE USA, INC. | 6529 | CLERMONT | OH |
| 2025-04-03 | 307-412-1XXX | T-MOBILE USA, INC. | 6529 | CHEYENNE | WY |
| 2025-04-03 | 307-412-2XXX | T-MOBILE USA, INC. | 6529 | CHEYENNE | WY |
| 2025-04-03 | 307-412-3XXX | T-MOBILE USA, INC. | 6529 | CHEYENNE | WY |
| 2025-04-03 | 307-412-4XXX | T-MOBILE USA, INC. | 6529 | CHEYENNE | WY |
| 2025-04-03 | 307-412-5XXX | T-MOBILE USA, INC. | 6529 | CHEYENNE | WY |
| 2025-04-03 | 582-245-0XXX | T-MOBILE USA, INC. | 6529 | ERIE | PA |
| 2025-04-01 | 217-323-7XXX | T-MOBILE USA, INC. | 6529 | BEARDSTOWN | IL |
| 2025-04-01 | 217-909-1XXX | T-MOBILE USA, INC. | 6529 | BEARDSTOWN | IL |
| 2025-04-01 | 217-909-7XXX | T-MOBILE USA, INC. | 6529 | BEARDSTOWN | IL |
| 2025-04-01 | 447-253-3XXX | T-MOBILE USA, INC. | 6529 | BEARDSTOWN | IL |
| 2025-04-01 | 447-253-4XXX | T-MOBILE USA, INC. | 6529 | BEARDSTOWN | IL |
| 2025-03-31 | 319-990-0XXX | T-MOBILE USA, INC. | 6529 | BRIGHTON | IA |
| 2025-03-31 | 319-990-1XXX | T-MOBILE USA, INC. | 6529 | BRIGHTON | IA |
| 2025-03-31 | 319-990-2XXX | T-MOBILE USA, INC. | 6529 | BRIGHTON | IA |
| 2025-03-31 | 319-990-3XXX | T-MOBILE USA, INC. | 6529 | BRIGHTON | IA |
| 2025-03-31 | 319-990-9XXX | T-MOBILE USA, INC. | 6529 | BRIGHTON | IA |
| 2025-03-31 | 563-269-6XXX | T-MOBILE USA, INC. | 6529 | CASCADE | IA |
| 2025-03-31 | 563-772-0XXX | T-MOBILE USA, INC. | 6529 | CASCADE | IA |
| 2025-03-31 | 563-772-9XXX | T-MOBILE USA, INC. | 6529 | CASCADE | IA |
| 2025-03-28 | 219-408-4XXX | T-MOBILE USA, INC. | 6529 | HAMMOND | IN |
| 2025-03-28 | 219-408-5XXX | T-MOBILE USA, INC. | 6529 | HAMMOND | IN |
| 2025-03-28 | 341-259-5XXX | T-MOBILE USA, INC. | 6529 | ELSBR-PINL | CA |
| 2025-03-28 | 341-259-6XXX | T-MOBILE USA, INC. | 6529 | ELSBR-PINL | CA |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 2026-04 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.