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
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Dec 2025
Nov 2025
Oct 2025
| Assigned | Block | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 2025-12-03 | 435-369-9XXX | T-MOBILE USA, INC. | 6529 | BRIGHAM CY | UT |
| 2025-12-03 | 458-308-3XXX | T-MOBILE USA, INC. | 6529 | PENDLETON | OR |
| 2025-12-03 | 458-359-9XXX | T-MOBILE USA, INC. | 6529 | MILTONFWTR | OR |
| 2025-12-03 | 505-580-5XXX | T-MOBILE USA, INC. | 6529 | GALLUP | NM |
| 2025-12-03 | 505-580-6XXX | T-MOBILE USA, INC. | 6529 | GALLUP | NM |
| 2025-12-03 | 562-701-9XXX | T-MOBILE USA, INC. | 6529 | ALAMITOS | CA |
| 2025-12-03 | 562-767-0XXX | T-MOBILE USA, INC. | 6529 | ALAMITOS | CA |
| 2025-12-03 | 562-767-1XXX | T-MOBILE USA, INC. | 6529 | ALAMITOS | CA |
| 2025-12-03 | 562-767-2XXX | T-MOBILE USA, INC. | 6529 | ALAMITOS | CA |
| 2025-12-03 | 562-767-3XXX | T-MOBILE USA, INC. | 6529 | ALAMITOS | CA |
| 2025-12-03 | 562-767-4XXX | T-MOBILE USA, INC. | 6529 | ALAMITOS | CA |
| 2025-12-03 | 562-767-5XXX | T-MOBILE USA, INC. | 6529 | ALAMITOS | CA |
| 2025-12-03 | 573-940-4XXX | T-MOBILE USA, INC. | 6529 | ASHLAND | MO |
| 2025-12-03 | 661-736-8XXX | T-MOBILE USA, INC. | 6529 | ARVIN | CA |
| 2025-12-03 | 775-294-9XXX | T-MOBILE USA, INC. | 6529 | FALLON | NV |
| 2025-12-03 | 775-523-4XXX | T-MOBILE USA, INC. | 6529 | SWEETWATER | NV |
| 2025-12-03 | 808-279-9XXX | T-MOBILE USA, INC. | 6529 | HILO | HI |
| 2025-12-03 | 808-991-5XXX | T-MOBILE USA, INC. | 6529 | HILO | HI |
| 2025-12-03 | 808-991-6XXX | T-MOBILE USA, INC. | 6529 | HILO | HI |
| 2025-12-03 | 831-327-7XXX | T-MOBILE USA, INC. | 6529 | HOLLISTER | CA |
| 2025-12-03 | 949-883-5XXX | T-MOBILE USA, INC. | 6529 | CAPITRNVLY | CA |
| 2025-12-03 | 970-917-0XXX | T-MOBILE USA, INC. | 6529 | DURANGO | CO |
| 2025-12-03 | 970-917-9XXX | T-MOBILE USA, INC. | 6529 | DURANGO | CO |
| 2025-12-03 | 986-209-3XXX | T-MOBILE USA, INC. | 6529 | KETCHUM | ID |
| 2025-12-03 | 986-302-9XXX | T-MOBILE USA, INC. | 6529 | TWIN FALLS | ID |
| 2025-11-28 | 341-259-0XXX | T-MOBILE USA, INC. | 6529 | ELSBR-PINL | CA |
| 2025-11-28 | 341-259-1XXX | T-MOBILE USA, INC. | 6529 | ELSBR-PINL | CA |
| 2025-11-28 | 341-265-9XXX | T-MOBILE USA, INC. | 6529 | ELSBR-PINL | CA |
| 2025-11-28 | 509-708-2XXX | T-MOBILE USA, INC. | 6529 | ELLENSBURG | WA |
| 2025-11-28 | 509-708-3XXX | T-MOBILE USA, INC. | 6529 | ELLENSBURG | WA |
| 2025-11-28 | 509-708-4XXX | T-MOBILE USA, INC. | 6529 | ELLENSBURG | WA |
| 2025-11-28 | 628-466-8XXX | T-MOBILE USA, INC. | 6529 | SNFC CNTRL | CA |
| 2025-11-28 | 669-373-2XXX | T-MOBILE USA, INC. | 6529 | SARATOGA | CA |
| 2025-11-28 | 669-373-3XXX | T-MOBILE USA, INC. | 6529 | SARATOGA | CA |
| 2025-11-28 | 858-322-4XXX | T-MOBILE USA, INC. | 6529 | SNDG MRMS | CA |
| 2025-11-28 | 858-445-9XXX | T-MOBILE USA, INC. | 6529 | SNDG MRMS | CA |
| 2025-11-26 | 307-454-4XXX | T-MOBILE USA, INC. | 6529 | RIVERTON | WY |
| 2025-11-26 | 385-618-9XXX | T-MOBILE USA, INC. | 6529 | PROVO | UT |
| 2025-11-26 | 458-319-4XXX | T-MOBILE USA, INC. | 6529 | JUNCTIONCY | OR |
| 2025-11-26 | 505-399-4XXX | T-MOBILE USA, INC. | 6529 | GALLUP | NM |
| 2025-11-26 | 505-868-8XXX | T-MOBILE USA, INC. | 6529 | GALLUP | NM |
| 2025-11-26 | 971-523-0XXX | T-MOBILE USA, INC. | 6529 | TILLAMOOK | OR |
| 2025-11-26 | 971-523-1XXX | T-MOBILE USA, INC. | 6529 | TILLAMOOK | OR |
| 2025-11-26 | 971-523-2XXX | T-MOBILE USA, INC. | 6529 | TILLAMOOK | OR |
| 2025-11-26 | 971-523-3XXX | T-MOBILE USA, INC. | 6529 | TILLAMOOK | OR |
| 2025-11-26 | 971-523-4XXX | T-MOBILE USA, INC. | 6529 | TILLAMOOK | OR |
| 2025-11-26 | 971-523-5XXX | T-MOBILE USA, INC. | 6529 | TILLAMOOK | OR |
| 2025-11-26 | 971-523-6XXX | T-MOBILE USA, INC. | 6529 | TILLAMOOK | OR |
| 2025-11-25 | 515-983-6XXX | T-MOBILE USA, INC. | 6529 | AMES | IA |
| 2025-11-25 | 515-983-7XXX | T-MOBILE USA, INC. | 6529 | AMES | IA |
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.