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 |
|---|---|---|---|---|---|
| 2005-07-11 | 224-848-0XXX | T-MOBILE USA, INC. | 6529 | BARRINGTON | IL |
| 2005-07-11 | 224-848-1XXX | T-MOBILE USA, INC. | 6529 | BARRINGTON | IL |
| 2005-07-11 | 224-848-9XXX | T-MOBILE USA, INC. | 6529 | BARRINGTON | IL |
| 2005-07-11 | 630-229-9XXX | T-MOBILE USA, INC. | 6529 | AURORA | IL |
| 2005-07-11 | 636-293-3XXX | T-MOBILE USA, INC. | 6529 | OFALLON | MO |
| 2005-07-11 | 650-887-4XXX | T-MOBILE USA, INC. | 6529 | LOS ALTOS | CA |
| 2005-07-11 | 773-603-0XXX | T-MOBILE USA, INC. | 6529 | CHICGOZN10 | IL |
| 2005-07-11 | 773-603-1XXX | T-MOBILE USA, INC. | 6529 | CHICGOZN10 | IL |
| 2005-07-11 | 773-603-2XXX | T-MOBILE USA, INC. | 6529 | CHICGOZN10 | IL |
| 2005-07-11 | 773-603-3XXX | T-MOBILE USA, INC. | 6529 | CHICGOZN10 | IL |
| 2005-07-11 | 773-603-9XXX | T-MOBILE USA, INC. | 6529 | CHICGOZN10 | IL |
| 2005-07-11 | 773-656-0XXX | T-MOBILE USA, INC. | 6529 | CHICGOZN10 | IL |
| 2005-07-11 | 773-656-1XXX | T-MOBILE USA, INC. | 6529 | CHICGOZN10 | IL |
| 2005-07-11 | 773-656-2XXX | T-MOBILE USA, INC. | 6529 | CHICGOZN10 | IL |
| 2005-07-11 | 773-656-3XXX | T-MOBILE USA, INC. | 6529 | CHICGOZN10 | IL |
| 2005-07-11 | 773-656-9XXX | T-MOBILE USA, INC. | 6529 | CHICGOZN10 | IL |
| 2005-07-08 | 213-477-3XXX | T-MOBILE USA, INC. | 6529 | LSAN DA 07 | CA |
| 2005-07-08 | 312-451-9XXX | T-MOBILE USA, INC. | 6529 | CHICGOZN01 | IL |
| 2005-07-08 | 312-731-0XXX | T-MOBILE USA, INC. | 6529 | CHICGOZN01 | IL |
| 2005-07-08 | 312-731-9XXX | T-MOBILE USA, INC. | 6529 | CHICGOZN01 | IL |
| 2005-07-08 | 773-746-0XXX | T-MOBILE USA, INC. | 6529 | CHICGOZN03 | IL |
| 2005-07-08 | 773-746-1XXX | T-MOBILE USA, INC. | 6529 | CHICGOZN03 | IL |
| 2005-07-08 | 773-746-2XXX | T-MOBILE USA, INC. | 6529 | CHICGOZN03 | IL |
| 2005-07-08 | 773-746-3XXX | T-MOBILE USA, INC. | 6529 | CHICGOZN03 | IL |
| 2005-07-08 | 773-746-4XXX | T-MOBILE USA, INC. | 6529 | CHICGOZN03 | IL |
| 2005-07-08 | 773-746-5XXX | T-MOBILE USA, INC. | 6529 | CHICGOZN03 | IL |
| 2005-07-08 | 773-746-6XXX | T-MOBILE USA, INC. | 6529 | CHICGOZN03 | IL |
| 2005-07-08 | 773-746-7XXX | T-MOBILE USA, INC. | 6529 | CHICGOZN03 | IL |
| 2005-07-08 | 773-746-8XXX | T-MOBILE USA, INC. | 6529 | CHICGOZN03 | IL |
| 2005-07-08 | 773-746-9XXX | T-MOBILE USA, INC. | 6529 | CHICGOZN03 | IL |
| 2005-07-08 | 805-264-7XXX | T-MOBILE USA, INC. | 6529 | SANTAMARIA | CA |
| 2005-07-08 | 815-212-9XXX | T-MOBILE USA, INC. | 6529 | JOLIET | IL |
| 2005-07-08 | 818-205-6XXX | T-MOBILE USA, INC. | 6529 | VAN NUYS | CA |
| 2005-07-08 | 916-670-0XXX | T-MOBILE USA, INC. | 6529 | ELK GROVE | CA |
| 2005-07-08 | 951-880-6XXX | T-MOBILE USA, INC. | 6529 | RIVERSIDE | CA |
| 2005-07-07 | 206-288-3XXX | T-MOBILE USA, INC. | 6529 | SEATTLE | WA |
| 2005-07-07 | 206-393-2XXX | T-MOBILE USA, INC. | 6529 | SEATTLE | WA |
| 2005-07-07 | 206-694-3XXX | T-MOBILE USA, INC. | 6529 | SEATTLE | WA |
| 2005-07-07 | 206-701-4XXX | T-MOBILE USA, INC. | 6529 | SEATTLE | WA |
| 2005-07-07 | 206-802-4XXX | T-MOBILE USA, INC. | 6529 | SEATTLE | WA |
| 2005-07-07 | 206-802-5XXX | T-MOBILE USA, INC. | 6529 | SEATTLE | WA |
| 2005-07-07 | 208-220-3XXX | T-MOBILE USA, INC. | 6529 | POCATELLO | ID |
| 2005-07-07 | 209-277-4XXX | T-MOBILE USA, INC. | 6529 | TURLOCK | CA |
| 2005-07-07 | 213-254-7XXX | T-MOBILE USA, INC. | 6529 | LSAN DA 01 | CA |
| 2005-07-07 | 216-466-1XXX | T-MOBILE USA, INC. | 6529 | CLEVELAND | OH |
| 2005-07-07 | 303-217-6XXX | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2005-07-07 | 303-246-2XXX | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2005-07-07 | 303-258-6XXX | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2005-07-07 | 303-260-8XXX | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2005-07-07 | 303-260-9XXX | T-MOBILE USA, INC. | 6529 | DENVER | 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.