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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Oct 2025
| Assigned | Block | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 2003-07-31 | 314-898-2XXX | T-MOBILE USA, INC. | 6529 | ST LOUIS | MO |
| 2003-07-31 | 513-276-0XXX | T-MOBILE USA, INC. | 6529 | CINCINNATI | OH |
| 2003-07-31 | 513-276-1XXX | T-MOBILE USA, INC. | 6529 | CINCINNATI | OH |
| 2003-07-31 | 513-276-2XXX | T-MOBILE USA, INC. | 6529 | CINCINNATI | OH |
| 2003-07-31 | 708-825-3XXX | T-MOBILE USA, INC. | 6529 | HARVEY | IL |
| 2003-07-31 | 708-825-4XXX | T-MOBILE USA, INC. | 6529 | HARVEY | IL |
| 2003-07-31 | 708-825-5XXX | T-MOBILE USA, INC. | 6529 | HARVEY | IL |
| 2003-07-31 | 708-825-6XXX | T-MOBILE USA, INC. | 6529 | HARVEY | IL |
| 2003-07-31 | 708-825-7XXX | T-MOBILE USA, INC. | 6529 | HARVEY | IL |
| 2003-07-31 | 708-825-8XXX | T-MOBILE USA, INC. | 6529 | HARVEY | IL |
| 2003-07-30 | 309-540-9XXX | T-MOBILE USA, INC. | 6529 | KEWANEE | IL |
| 2003-07-30 | 312-451-6XXX | T-MOBILE USA, INC. | 6529 | CHICGOZN01 | IL |
| 2003-07-30 | 805-904-9XXX | T-MOBILE USA, INC. | 6529 | ARROYOGRND | CA |
| 2003-07-28 | 224-629-2XXX | T-MOBILE USA, INC. | 6529 | ELGIN | IL |
| 2003-07-28 | 254-733-6XXX | T-MOBILE USA, INC. | 6529 | WACO | TX |
| 2003-07-28 | 254-733-7XXX | T-MOBILE USA, INC. | 6529 | WACO | TX |
| 2003-07-28 | 254-733-8XXX | T-MOBILE USA, INC. | 6529 | WACO | TX |
| 2003-07-28 | 520-234-7XXX | T-MOBILE USA, INC. | 6529 | SIERRAVIST | AZ |
| 2003-07-28 | 520-234-8XXX | T-MOBILE USA, INC. | 6529 | SIERRAVIST | AZ |
| 2003-07-28 | 630-885-2XXX | T-MOBILE USA, INC. | 6529 | NAPERVILLE | IL |
| 2003-07-28 | 630-885-3XXX | T-MOBILE USA, INC. | 6529 | NAPERVILLE | IL |
| 2003-07-28 | 630-885-4XXX | T-MOBILE USA, INC. | 6529 | NAPERVILLE | IL |
| 2003-07-28 | 630-885-5XXX | T-MOBILE USA, INC. | 6529 | NAPERVILLE | IL |
| 2003-07-28 | 815-276-4XXX | T-MOBILE USA, INC. | 6529 | CRYSTAL LK | IL |
| 2003-07-28 | 815-276-6XXX | T-MOBILE USA, INC. | 6529 | CRYSTAL LK | IL |
| 2003-07-28 | 815-276-8XXX | T-MOBILE USA, INC. | 6529 | CRYSTAL LK | IL |
| 2003-07-21 | 219-512-4XXX | T-MOBILE USA, INC. | 6529 | GARY | IN |
| 2003-07-18 | 608-397-9XXX | T-MOBILE USA, INC. | 6529 | LA CROSSE | WI |
| 2003-07-18 | 847-354-3XXX | T-MOBILE USA, INC. | 6529 | ELK GROVE | IL |
| 2003-07-18 | 847-354-5XXX | T-MOBILE USA, INC. | 6529 | ELK GROVE | IL |
| 2003-07-18 | 847-354-8XXX | T-MOBILE USA, INC. | 6529 | ELK GROVE | IL |
| 2003-07-16 | 310-696-9XXX | T-MOBILE USA, INC. | 6529 | W ANGELES | CA |
| 2003-07-16 | 310-971-7XXX | T-MOBILE USA, INC. | 6529 | SAN PEDRO | CA |
| 2003-07-16 | 319-670-9XXX | T-MOBILE USA, INC. | 6529 | KEOKUK | IA |
| 2003-07-16 | 408-608-5XXX | T-MOBILE USA, INC. | 6529 | CAMPBELL | CA |
| 2003-07-16 | 408-608-7XXX | T-MOBILE USA, INC. | 6529 | CAMPBELL | CA |
| 2003-07-16 | 636-368-8XXX | T-MOBILE USA, INC. | 6529 | CHESTERFLD | MO |
| 2003-07-16 | 708-768-3XXX | T-MOBILE USA, INC. | 6529 | RIVERDALE | IL |
| 2003-07-16 | 708-768-4XXX | T-MOBILE USA, INC. | 6529 | RIVERDALE | IL |
| 2003-07-16 | 708-768-7XXX | T-MOBILE USA, INC. | 6529 | RIVERDALE | IL |
| 2003-07-16 | 708-768-8XXX | T-MOBILE USA, INC. | 6529 | RIVERDALE | IL |
| 2003-07-16 | 773-640-2XXX | T-MOBILE USA, INC. | 6529 | CHICGOZN06 | IL |
| 2003-07-16 | 773-640-4XXX | T-MOBILE USA, INC. | 6529 | CHICGOZN06 | IL |
| 2003-07-16 | 773-640-6XXX | T-MOBILE USA, INC. | 6529 | CHICGOZN06 | IL |
| 2003-07-16 | 773-640-7XXX | T-MOBILE USA, INC. | 6529 | CHICGOZN06 | IL |
| 2003-07-16 | 773-640-8XXX | T-MOBILE USA, INC. | 6529 | CHICGOZN06 | IL |
| 2003-07-16 | 773-640-9XXX | T-MOBILE USA, INC. | 6529 | CHICGOZN06 | IL |
| 2003-07-16 | 773-648-1XXX | T-MOBILE USA, INC. | 6529 | CHICGOZN06 | IL |
| 2003-07-16 | 773-648-3XXX | T-MOBILE USA, INC. | 6529 | CHICGOZN06 | IL |
| 2003-07-16 | 847-276-5XXX | T-MOBILE USA, INC. | 6529 | HALF DAY | IL |
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.