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
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Oct 2025
| Assigned | Block | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 2022-08-11 | 575-270-1XXX | T-MOBILE USA, INC. | 6529 | LAS CRUCES | NM |
| 2022-08-11 | 626-563-1XXX | T-MOBILE USA, INC. | 6529 | PSDN PSDN | CA |
| 2022-08-11 | 626-563-2XXX | T-MOBILE USA, INC. | 6529 | PSDN PSDN | CA |
| 2022-08-11 | 626-563-3XXX | T-MOBILE USA, INC. | 6529 | PSDN PSDN | CA |
| 2022-08-11 | 626-563-4XXX | T-MOBILE USA, INC. | 6529 | PSDN PSDN | CA |
| 2022-08-11 | 626-601-0XXX | T-MOBILE USA, INC. | 6529 | LA PUENTE | CA |
| 2022-08-11 | 626-638-4XXX | T-MOBILE USA, INC. | 6529 | LA PUENTE | CA |
| 2022-08-11 | 626-638-6XXX | T-MOBILE USA, INC. | 6529 | LA PUENTE | CA |
| 2022-08-11 | 626-878-4XXX | T-MOBILE USA, INC. | 6529 | MONROVIA | CA |
| 2022-08-11 | 626-878-5XXX | T-MOBILE USA, INC. | 6529 | MONROVIA | CA |
| 2022-08-11 | 626-878-6XXX | T-MOBILE USA, INC. | 6529 | MONROVIA | CA |
| 2022-08-11 | 628-789-2XXX | T-MOBILE USA, INC. | 6529 | SNFC CNTRL | CA |
| 2022-08-11 | 628-789-3XXX | T-MOBILE USA, INC. | 6529 | SNFC CNTRL | CA |
| 2022-08-11 | 661-581-5XXX | T-MOBILE USA, INC. | 6529 | PLDL PLDL | CA |
| 2022-08-11 | 661-581-7XXX | T-MOBILE USA, INC. | 6529 | PLDL PLDL | CA |
| 2022-08-11 | 661-936-0XXX | T-MOBILE USA, INC. | 6529 | PLDL PLDL | CA |
| 2022-08-11 | 661-936-1XXX | T-MOBILE USA, INC. | 6529 | PLDL PLDL | CA |
| 2022-08-11 | 719-483-8XXX | T-MOBILE USA, INC. | 6529 | TRINIDAD | CO |
| 2022-08-11 | 719-483-9XXX | T-MOBILE USA, INC. | 6529 | TRINIDAD | CO |
| 2022-08-11 | 720-953-8XXX | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2022-08-11 | 747-488-6XXX | T-MOBILE USA, INC. | 6529 | SNFN SNFN | CA |
| 2022-08-11 | 747-488-7XXX | T-MOBILE USA, INC. | 6529 | SNFN SNFN | CA |
| 2022-08-11 | 747-488-9XXX | T-MOBILE USA, INC. | 6529 | SNFN SNFN | CA |
| 2022-08-11 | 909-602-4XXX | T-MOBILE USA, INC. | 6529 | REDLANDS | CA |
| 2022-08-11 | 916-839-0XXX | T-MOBILE USA, INC. | 6529 | RSVL MAIN | CA |
| 2022-08-11 | 925-546-7XXX | T-MOBILE USA, INC. | 6529 | WALNUT CRK | CA |
| 2022-08-11 | 925-546-8XXX | T-MOBILE USA, INC. | 6529 | WALNUT CRK | CA |
| 2022-08-11 | 971-381-7XXX | T-MOBILE USA, INC. | 6529 | CLACKAMAS | OR |
| 2022-08-11 | 971-825-2XXX | T-MOBILE USA, INC. | 6529 | CLACKAMAS | OR |
| 2022-08-11 | 971-825-4XXX | T-MOBILE USA, INC. | 6529 | CLACKAMAS | OR |
| 2022-08-11 | 971-825-6XXX | T-MOBILE USA, INC. | 6529 | CLACKAMAS | OR |
| 2022-08-10 | 435-567-7XXX | T-MOBILE USA, INC. | 6529 | RICHFIELD | UT |
| 2022-08-10 | 501-489-1XXX | T-MOBILE USA, INC. | 6529 | MALVERN | AR |
| 2022-08-10 | 501-489-2XXX | T-MOBILE USA, INC. | 6529 | MALVERN | AR |
| 2022-08-10 | 636-829-5XXX | T-MOBILE USA, INC. | 6529 | HIGH RIDGE | MO |
| 2022-08-10 | 808-318-5XXX | T-MOBILE USA, INC. | 6529 | WAILUKU | HI |
| 2022-08-10 | 808-318-6XXX | T-MOBILE USA, INC. | 6529 | WAILUKU | HI |
| 2022-08-10 | 808-318-7XXX | T-MOBILE USA, INC. | 6529 | WAILUKU | HI |
| 2022-08-10 | 808-743-0XXX | T-MOBILE USA, INC. | 6529 | WAILUKU | HI |
| 2022-08-09 | 945-264-0XXX | T-MOBILE USA, INC. | 6529 | GRANDPRARI | TX |
| 2022-08-09 | 945-264-1XXX | T-MOBILE USA, INC. | 6529 | GRANDPRARI | TX |
| 2022-08-09 | 945-264-2XXX | T-MOBILE USA, INC. | 6529 | GRANDPRARI | TX |
| 2022-08-09 | 945-264-3XXX | T-MOBILE USA, INC. | 6529 | GRANDPRARI | TX |
| 2022-08-09 | 945-264-4XXX | T-MOBILE USA, INC. | 6529 | GRANDPRARI | TX |
| 2022-08-09 | 945-264-5XXX | T-MOBILE USA, INC. | 6529 | GRANDPRARI | TX |
| 2022-08-09 | 945-264-6XXX | T-MOBILE USA, INC. | 6529 | GRANDPRARI | TX |
| 2022-08-09 | 945-264-7XXX | T-MOBILE USA, INC. | 6529 | GRANDPRARI | TX |
| 2022-08-09 | 945-264-8XXX | T-MOBILE USA, INC. | 6529 | GRANDPRARI | TX |
| 2022-08-09 | 945-264-9XXX | T-MOBILE USA, INC. | 6529 | GRANDPRARI | TX |
| 2022-08-09 | 945-265-0XXX | T-MOBILE USA, INC. | 6529 | GRANDPRARI | TX |
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.