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 |
|---|---|---|---|---|---|
| 2025-09-16 | 326-230-1XXX | T-MOBILE USA, INC. | 6529 | YLSPGCLFTN | OH |
| 2025-09-16 | 326-230-2XXX | T-MOBILE USA, INC. | 6529 | YLSPGCLFTN | OH |
| 2025-09-16 | 432-340-3XXX | T-MOBILE USA, INC. | 6529 | BIG SPRING | TX |
| 2025-09-16 | 520-763-2XXX | T-MOBILE USA, INC. | 6529 | CASAGRANDE | AZ |
| 2025-09-16 | 520-763-3XXX | T-MOBILE USA, INC. | 6529 | CASAGRANDE | AZ |
| 2025-09-16 | 520-763-4XXX | T-MOBILE USA, INC. | 6529 | CASAGRANDE | AZ |
| 2025-09-16 | 520-763-5XXX | T-MOBILE USA, INC. | 6529 | CASAGRANDE | AZ |
| 2025-09-16 | 539-368-9XXX | T-MOBILE USA, INC. | 6529 | BARTLESVL | OK |
| 2025-09-16 | 572-358-0XXX | T-MOBILE USA, INC. | 6529 | CHANDLER | OK |
| 2025-09-16 | 572-358-5XXX | T-MOBILE USA, INC. | 6529 | CHANDLER | OK |
| 2025-09-16 | 572-358-8XXX | T-MOBILE USA, INC. | 6529 | CHANDLER | OK |
| 2025-09-16 | 572-358-9XXX | T-MOBILE USA, INC. | 6529 | CHANDLER | OK |
| 2025-09-16 | 681-981-0XXX | T-MOBILE USA, INC. | 6529 | ANSTED | WV |
| 2025-09-16 | 681-981-1XXX | T-MOBILE USA, INC. | 6529 | ANSTED | WV |
| 2025-09-16 | 681-981-9XXX | T-MOBILE USA, INC. | 6529 | ANSTED | WV |
| 2025-09-16 | 708-234-9XXX | T-MOBILE USA, INC. | 6529 | BELLWOOD | IL |
| 2025-09-16 | 945-399-0XXX | T-MOBILE USA, INC. | 6529 | DALLAS | TX |
| 2025-09-16 | 945-399-1XXX | T-MOBILE USA, INC. | 6529 | DALLAS | TX |
| 2025-09-16 | 945-399-2XXX | T-MOBILE USA, INC. | 6529 | DALLAS | TX |
| 2025-09-16 | 945-399-3XXX | T-MOBILE USA, INC. | 6529 | DALLAS | TX |
| 2025-09-16 | 945-399-4XXX | T-MOBILE USA, INC. | 6529 | DALLAS | TX |
| 2025-09-16 | 945-399-5XXX | T-MOBILE USA, INC. | 6529 | DALLAS | TX |
| 2025-09-16 | 945-399-6XXX | T-MOBILE USA, INC. | 6529 | DALLAS | TX |
| 2025-09-16 | 945-399-7XXX | T-MOBILE USA, INC. | 6529 | DALLAS | TX |
| 2025-09-16 | 945-399-8XXX | T-MOBILE USA, INC. | 6529 | DALLAS | TX |
| 2025-09-16 | 945-403-9XXX | T-MOBILE USA, INC. | 6529 | DALLAS | TX |
| 2025-09-15 | 253-429-0XXX | T-MOBILE USA, INC. | 6529 | AUBURN | WA |
| 2025-09-15 | 253-429-1XXX | T-MOBILE USA, INC. | 6529 | AUBURN | WA |
| 2025-09-15 | 253-429-2XXX | T-MOBILE USA, INC. | 6529 | AUBURN | WA |
| 2025-09-15 | 253-429-3XXX | T-MOBILE USA, INC. | 6529 | AUBURN | WA |
| 2025-09-12 | 307-485-1XXX | T-MOBILE USA, INC. | 6529 | CASPER | WY |
| 2025-09-12 | 307-485-2XXX | T-MOBILE USA, INC. | 6529 | CASPER | WY |
| 2025-09-12 | 369-223-0XXX | T-MOBILE USA, INC. | 6529 | BENICIA | CA |
| 2025-09-12 | 369-235-9XXX | T-MOBILE USA, INC. | 6529 | BENICIA | CA |
| 2025-09-12 | 406-955-3XXX | T-MOBILE USA, INC. | 6529 | KALISPELL | MT |
| 2025-09-12 | 424-437-7XXX | T-MOBILE USA, INC. | 6529 | HAWTHORNE | CA |
| 2025-09-12 | 442-472-0XXX | T-MOBILE USA, INC. | 6529 | SAN MARCOS | CA |
| 2025-09-12 | 951-802-6XXX | T-MOBILE USA, INC. | 6529 | MORENO | CA |
| 2025-09-12 | 951-802-7XXX | T-MOBILE USA, INC. | 6529 | MORENO | CA |
| 2025-09-12 | 951-802-8XXX | T-MOBILE USA, INC. | 6529 | MORENO | CA |
| 2025-09-12 | 951-802-9XXX | T-MOBILE USA, INC. | 6529 | MORENO | CA |
| 2025-09-10 | 224-669-0XXX | T-MOBILE USA, INC. | 6529 | ARLIGTNHTS | IL |
| 2025-09-10 | 224-669-1XXX | T-MOBILE USA, INC. | 6529 | ARLIGTNHTS | IL |
| 2025-09-10 | 224-669-2XXX | T-MOBILE USA, INC. | 6529 | ARLIGTNHTS | IL |
| 2025-09-10 | 224-669-3XXX | T-MOBILE USA, INC. | 6529 | ARLIGTNHTS | IL |
| 2025-09-10 | 224-669-4XXX | T-MOBILE USA, INC. | 6529 | ARLIGTNHTS | IL |
| 2025-09-10 | 224-669-5XXX | T-MOBILE USA, INC. | 6529 | ARLIGTNHTS | IL |
| 2025-09-10 | 224-669-6XXX | T-MOBILE USA, INC. | 6529 | ARLIGTNHTS | IL |
| 2025-09-10 | 224-669-7XXX | T-MOBILE USA, INC. | 6529 | ARLIGTNHTS | IL |
| 2025-09-10 | 224-669-8XXX | T-MOBILE USA, INC. | 6529 | ARLIGTNHTS | 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.