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
Sep 2026
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Oct 2025
| Assigned | Block | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 2022-07-21 | 915-332-9XXX | T-MOBILE USA, INC. | 6529 | EL PASO | TX |
| 2022-07-20 | 213-913-0XXX | T-MOBILE USA, INC. | 6529 | LSAN DA 07 | CA |
| 2022-07-20 | 213-913-1XXX | T-MOBILE USA, INC. | 6529 | LSAN DA 07 | CA |
| 2022-07-20 | 213-913-2XXX | T-MOBILE USA, INC. | 6529 | LSAN DA 07 | CA |
| 2022-07-20 | 213-913-4XXX | T-MOBILE USA, INC. | 6529 | LSAN DA 07 | CA |
| 2022-07-20 | 213-913-5XXX | T-MOBILE USA, INC. | 6529 | LSAN DA 07 | CA |
| 2022-07-20 | 213-913-7XXX | T-MOBILE USA, INC. | 6529 | LSAN DA 07 | CA |
| 2022-07-20 | 307-200-5XXX | T-MOBILE USA, INC. | 6529 | JACKSON | WY |
| 2022-07-20 | 360-821-5XXX | T-MOBILE USA, INC. | 6529 | PTTOWNSEND | WA |
| 2022-07-20 | 360-821-6XXX | T-MOBILE USA, INC. | 6529 | PTTOWNSEND | WA |
| 2022-07-20 | 360-821-7XXX | T-MOBILE USA, INC. | 6529 | PTTOWNSEND | WA |
| 2022-07-20 | 385-865-3XXX | T-MOBILE USA, INC. | 6529 | OGDEN | UT |
| 2022-07-20 | 385-865-5XXX | T-MOBILE USA, INC. | 6529 | OGDEN | UT |
| 2022-07-20 | 385-865-6XXX | T-MOBILE USA, INC. | 6529 | OGDEN | UT |
| 2022-07-20 | 385-865-7XXX | T-MOBILE USA, INC. | 6529 | OGDEN | UT |
| 2022-07-20 | 385-865-9XXX | T-MOBILE USA, INC. | 6529 | OGDEN | UT |
| 2022-07-20 | 425-340-4XXX | T-MOBILE USA, INC. | 6529 | ISSAQUAH | WA |
| 2022-07-20 | 425-340-5XXX | T-MOBILE USA, INC. | 6529 | ISSAQUAH | WA |
| 2022-07-20 | 425-340-6XXX | T-MOBILE USA, INC. | 6529 | ISSAQUAH | WA |
| 2022-07-20 | 425-475-8XXX | T-MOBILE USA, INC. | 6529 | HALLS LAKE | WA |
| 2022-07-20 | 425-475-9XXX | T-MOBILE USA, INC. | 6529 | HALLS LAKE | WA |
| 2022-07-20 | 425-510-8XXX | T-MOBILE USA, INC. | 6529 | HALLS LAKE | WA |
| 2022-07-20 | 425-510-9XXX | T-MOBILE USA, INC. | 6529 | HALLS LAKE | WA |
| 2022-07-20 | 425-543-3XXX | T-MOBILE USA, INC. | 6529 | BELLEVUE | WA |
| 2022-07-20 | 425-543-4XXX | T-MOBILE USA, INC. | 6529 | BELLEVUE | WA |
| 2022-07-20 | 425-543-5XXX | T-MOBILE USA, INC. | 6529 | BELLEVUE | WA |
| 2022-07-20 | 425-543-6XXX | T-MOBILE USA, INC. | 6529 | BELLEVUE | WA |
| 2022-07-20 | 425-543-7XXX | T-MOBILE USA, INC. | 6529 | BELLEVUE | WA |
| 2022-07-20 | 425-543-8XXX | T-MOBILE USA, INC. | 6529 | BELLEVUE | WA |
| 2022-07-20 | 425-683-1XXX | T-MOBILE USA, INC. | 6529 | EVERETT | WA |
| 2022-07-20 | 425-683-2XXX | T-MOBILE USA, INC. | 6529 | EVERETT | WA |
| 2022-07-20 | 425-683-3XXX | T-MOBILE USA, INC. | 6529 | EVERETT | WA |
| 2022-07-20 | 530-685-7XXX | T-MOBILE USA, INC. | 6529 | WILLOWS | CA |
| 2022-07-20 | 650-609-0XXX | T-MOBILE USA, INC. | 6529 | MILLBRAE | CA |
| 2022-07-20 | 650-609-1XXX | T-MOBILE USA, INC. | 6529 | MILLBRAE | CA |
| 2022-07-20 | 669-786-3XXX | T-MOBILE USA, INC. | 6529 | SNJS SOUTH | CA |
| 2022-07-20 | 669-786-4XXX | T-MOBILE USA, INC. | 6529 | SNJS SOUTH | CA |
| 2022-07-20 | 669-786-5XXX | T-MOBILE USA, INC. | 6529 | SNJS SOUTH | CA |
| 2022-07-20 | 669-786-6XXX | T-MOBILE USA, INC. | 6529 | SNJS SOUTH | CA |
| 2022-07-20 | 669-786-8XXX | T-MOBILE USA, INC. | 6529 | SNJS SOUTH | CA |
| 2022-07-20 | 707-810-5XXX | T-MOBILE USA, INC. | 6529 | BENICIA | CA |
| 2022-07-20 | 707-810-6XXX | T-MOBILE USA, INC. | 6529 | BENICIA | CA |
| 2022-07-20 | 707-810-7XXX | T-MOBILE USA, INC. | 6529 | BENICIA | CA |
| 2022-07-20 | 707-810-8XXX | T-MOBILE USA, INC. | 6529 | BENICIA | CA |
| 2022-07-20 | 719-678-2XXX | T-MOBILE USA, INC. | 6529 | COLORDOSPG | CO |
| 2022-07-20 | 719-678-3XXX | T-MOBILE USA, INC. | 6529 | COLORDOSPG | CO |
| 2022-07-20 | 719-678-4XXX | T-MOBILE USA, INC. | 6529 | COLORDOSPG | CO |
| 2022-07-20 | 719-678-5XXX | T-MOBILE USA, INC. | 6529 | COLORDOSPG | CO |
| 2022-07-20 | 719-678-6XXX | T-MOBILE USA, INC. | 6529 | COLORDOSPG | CO |
| 2022-07-20 | 719-678-7XXX | T-MOBILE USA, INC. | 6529 | COLORDOSPG | CO |
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.