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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Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | Block | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 2025-05-23 | 972-295-4XXX | T-MOBILE USA, INC. | 6529 | PLANO | TX |
| 2025-05-22 | 350-224-2XXX | T-MOBILE USA, INC. | 6529 | ATWATER | CA |
| 2025-05-22 | 350-233-0XXX | T-MOBILE USA, INC. | 6529 | ATWATER | CA |
| 2025-05-22 | 350-233-1XXX | T-MOBILE USA, INC. | 6529 | ATWATER | CA |
| 2025-05-22 | 350-233-2XXX | T-MOBILE USA, INC. | 6529 | ATWATER | CA |
| 2025-05-22 | 650-220-2XXX | T-MOBILE USA, INC. | 6529 | MT VIEW | CA |
| 2025-05-21 | 307-346-4XXX | T-MOBILE USA, INC. | 6529 | CHEYENNE | WY |
| 2025-05-21 | 307-346-5XXX | T-MOBILE USA, INC. | 6529 | CHEYENNE | WY |
| 2025-05-21 | 307-346-6XXX | T-MOBILE USA, INC. | 6529 | CHEYENNE | WY |
| 2025-05-21 | 307-412-7XXX | T-MOBILE USA, INC. | 6529 | CHEYENNE | WY |
| 2025-05-21 | 307-412-8XXX | T-MOBILE USA, INC. | 6529 | CHEYENNE | WY |
| 2025-05-21 | 406-610-3XXX | T-MOBILE USA, INC. | 6529 | MISSOULA | MT |
| 2025-05-21 | 681-844-9XXX | T-MOBILE USA, INC. | 6529 | RICHWOOD | WV |
| 2025-05-21 | 970-559-5XXX | T-MOBILE USA, INC. | 6529 | DURANGO | CO |
| 2025-05-21 | 970-814-0XXX | T-MOBILE USA, INC. | 6529 | DURANGO | CO |
| 2025-05-20 | 501-491-4XXX | T-MOBILE USA, INC. | 6529 | BEEBE | AR |
| 2025-05-20 | 501-942-1XXX | T-MOBILE USA, INC. | 6529 | SCOTT | AR |
| 2025-05-20 | 557-203-7XXX | T-MOBILE USA, INC. | 6529 | MEHLVILLE | MO |
| 2025-05-20 | 870-702-8XXX | T-MOBILE USA, INC. | 6529 | W MEMPHIS | AR |
| 2025-05-19 | 773-942-1XXX | T-MOBILE USA, INC. | 6529 | CHICGOZN02 | IL |
| 2025-05-19 | 773-942-5XXX | T-MOBILE USA, INC. | 6529 | CHICGOZN02 | IL |
| 2025-05-19 | 872-384-8XXX | T-MOBILE USA, INC. | 6529 | CHICGOZN02 | IL |
| 2025-05-19 | 872-384-9XXX | T-MOBILE USA, INC. | 6529 | CHICGOZN02 | IL |
| 2025-05-16 | 219-404-4XXX | T-MOBILE USA, INC. | 6529 | LOWELL | IN |
| 2025-05-16 | 279-282-4XXX | T-MOBILE USA, INC. | 6529 | ELK GROVE | CA |
| 2025-05-16 | 279-282-5XXX | T-MOBILE USA, INC. | 6529 | ELK GROVE | CA |
| 2025-05-16 | 279-282-6XXX | T-MOBILE USA, INC. | 6529 | ELK GROVE | CA |
| 2025-05-16 | 341-259-2XXX | T-MOBILE USA, INC. | 6529 | ELSBR-PINL | CA |
| 2025-05-16 | 341-259-3XXX | T-MOBILE USA, INC. | 6529 | ELSBR-PINL | CA |
| 2025-05-16 | 341-259-4XXX | T-MOBILE USA, INC. | 6529 | ELSBR-PINL | CA |
| 2025-05-16 | 435-289-2XXX | T-MOBILE USA, INC. | 6529 | RICHFIELD | UT |
| 2025-05-16 | 509-705-6XXX | T-MOBILE USA, INC. | 6529 | ELLENSBURG | WA |
| 2025-05-16 | 509-705-7XXX | T-MOBILE USA, INC. | 6529 | ELLENSBURG | WA |
| 2025-05-16 | 562-819-5XXX | T-MOBILE USA, INC. | 6529 | ALAMITOS | CA |
| 2025-05-16 | 562-819-6XXX | T-MOBILE USA, INC. | 6529 | ALAMITOS | CA |
| 2025-05-16 | 562-819-7XXX | T-MOBILE USA, INC. | 6529 | ALAMITOS | CA |
| 2025-05-16 | 562-819-8XXX | T-MOBILE USA, INC. | 6529 | ALAMITOS | CA |
| 2025-05-16 | 562-819-9XXX | T-MOBILE USA, INC. | 6529 | ALAMITOS | CA |
| 2025-05-16 | 572-216-0XXX | T-MOBILE USA, INC. | 6529 | CHANDLER | OK |
| 2025-05-16 | 572-216-1XXX | T-MOBILE USA, INC. | 6529 | CHANDLER | OK |
| 2025-05-16 | 580-359-4XXX | T-MOBILE USA, INC. | 6529 | ARDMORE | OK |
| 2025-05-16 | 580-359-7XXX | T-MOBILE USA, INC. | 6529 | ARDMORE | OK |
| 2025-05-16 | 808-647-7XXX | T-MOBILE USA, INC. | 6529 | LIHUE | HI |
| 2025-05-16 | 840-274-5XXX | T-MOBILE USA, INC. | 6529 | ARROWHEAD | CA |
| 2025-05-16 | 840-274-6XXX | T-MOBILE USA, INC. | 6529 | ARROWHEAD | CA |
| 2025-05-16 | 840-274-7XXX | T-MOBILE USA, INC. | 6529 | ARROWHEAD | CA |
| 2025-05-16 | 840-274-8XXX | T-MOBILE USA, INC. | 6529 | ARROWHEAD | CA |
| 2025-05-16 | 840-274-9XXX | T-MOBILE USA, INC. | 6529 | ARROWHEAD | CA |
| 2025-05-16 | 951-753-6XXX | T-MOBILE USA, INC. | 6529 | MORENO | CA |
| 2025-05-16 | 951-753-7XXX | T-MOBILE USA, INC. | 6529 | MORENO | 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.