NumberResearchRecent thousands-block assignments
66 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 |
|---|---|---|---|---|---|
| 2022-01-11 | 520-632-2XXX | T-MOBILE USA, INC. | 6529 | CASAGRANDE | AZ |
| 2022-01-11 | 520-632-3XXX | T-MOBILE USA, INC. | 6529 | CASAGRANDE | AZ |
| 2022-01-11 | 520-632-4XXX | T-MOBILE USA, INC. | 6529 | CASAGRANDE | AZ |
| 2022-01-11 | 520-632-5XXX | T-MOBILE USA, INC. | 6529 | CASAGRANDE | AZ |
| 2022-01-11 | 520-632-6XXX | T-MOBILE USA, INC. | 6529 | CASAGRANDE | AZ |
| 2022-01-11 | 520-632-7XXX | T-MOBILE USA, INC. | 6529 | CASAGRANDE | AZ |
| 2022-01-11 | 520-632-8XXX | T-MOBILE USA, INC. | 6529 | CASAGRANDE | AZ |
| 2022-01-11 | 520-632-9XXX | T-MOBILE USA, INC. | 6529 | CASAGRANDE | AZ |
| 2022-01-11 | 580-401-6XXX | T-MOBILE USA, INC. | 6529 | PONCA CITY | OK |
| 2022-01-11 | 580-401-7XXX | T-MOBILE USA, INC. | 6529 | PONCA CITY | OK |
| 2022-01-11 | 623-268-0XXX | T-MOBILE USA, INC. | 6529 | PHOENIX | AZ |
| 2022-01-11 | 623-268-1XXX | T-MOBILE USA, INC. | 6529 | PHOENIX | AZ |
| 2022-01-11 | 623-268-2XXX | T-MOBILE USA, INC. | 6529 | PHOENIX | AZ |
| 2022-01-11 | 623-268-3XXX | T-MOBILE USA, INC. | 6529 | PHOENIX | AZ |
| 2022-01-11 | 626-591-9XXX | T-MOBILE USA, INC. | 6529 | COVINA | CA |
| 2022-01-11 | 626-772-1XXX | T-MOBILE USA, INC. | 6529 | COVINA | CA |
| 2022-01-11 | 626-901-0XXX | T-MOBILE USA, INC. | 6529 | COVINA | CA |
| 2022-01-11 | 626-901-1XXX | T-MOBILE USA, INC. | 6529 | COVINA | CA |
| 2022-01-11 | 636-213-9XXX | T-MOBILE USA, INC. | 6529 | WARRENTON | MO |
| 2022-01-11 | 636-214-7XXX | T-MOBILE USA, INC. | 6529 | CHESTERFLD | MO |
| 2022-01-11 | 636-214-8XXX | T-MOBILE USA, INC. | 6529 | CHESTERFLD | MO |
| 2022-01-11 | 636-214-9XXX | T-MOBILE USA, INC. | 6529 | CHESTERFLD | MO |
| 2022-01-11 | 725-271-6XXX | T-MOBILE USA, INC. | 6529 | MESQUITE | NV |
| 2022-01-11 | 725-271-7XXX | T-MOBILE USA, INC. | 6529 | MESQUITE | NV |
| 2022-01-11 | 725-271-8XXX | T-MOBILE USA, INC. | 6529 | MESQUITE | NV |
| 2022-01-11 | 725-271-9XXX | T-MOBILE USA, INC. | 6529 | MESQUITE | NV |
| 2022-01-11 | 779-349-7XXX | T-MOBILE USA, INC. | 6529 | SPRING VLY | IL |
| 2022-01-11 | 779-349-8XXX | T-MOBILE USA, INC. | 6529 | SPRING VLY | IL |
| 2022-01-11 | 779-349-9XXX | T-MOBILE USA, INC. | 6529 | SPRING VLY | IL |
| 2022-01-11 | 928-418-5XXX | T-MOBILE USA, INC. | 6529 | KINGMAN | AZ |
| 2022-01-11 | 928-418-6XXX | T-MOBILE USA, INC. | 6529 | KINGMAN | AZ |
| 2022-01-11 | 928-418-7XXX | T-MOBILE USA, INC. | 6529 | KINGMAN | AZ |
| 2022-01-11 | 949-685-8XXX | T-MOBILE USA, INC. | 6529 | SADLBK VLY | CA |
| 2022-01-11 | 949-685-9XXX | T-MOBILE USA, INC. | 6529 | SADLBK VLY | CA |
| 2022-01-10 | 341-213-7XXX | T-MOBILE USA, INC. | 6529 | OKLD MN-PD | CA |
| 2022-01-10 | 341-213-8XXX | T-MOBILE USA, INC. | 6529 | OKLD MN-PD | CA |
| 2022-01-10 | 341-213-9XXX | T-MOBILE USA, INC. | 6529 | OKLD MN-PD | CA |
| 2022-01-10 | 442-370-4XXX | T-MOBILE USA, INC. | 6529 | INDIO | CA |
| 2022-01-10 | 442-370-5XXX | T-MOBILE USA, INC. | 6529 | INDIO | CA |
| 2022-01-10 | 442-370-6XXX | T-MOBILE USA, INC. | 6529 | INDIO | CA |
| 2022-01-10 | 442-370-7XXX | T-MOBILE USA, INC. | 6529 | INDIO | CA |
| 2022-01-10 | 442-370-8XXX | T-MOBILE USA, INC. | 6529 | INDIO | CA |
| 2022-01-10 | 530-709-0XXX | T-MOBILE USA, INC. | 6529 | MARYSVILLE | CA |
| 2022-01-10 | 530-709-1XXX | T-MOBILE USA, INC. | 6529 | MARYSVILLE | CA |
| 2022-01-10 | 530-709-2XXX | T-MOBILE USA, INC. | 6529 | MARYSVILLE | CA |
| 2022-01-10 | 530-709-3XXX | T-MOBILE USA, INC. | 6529 | MARYSVILLE | CA |
| 2022-01-10 | 564-209-0XXX | T-MOBILE USA, INC. | 6529 | WHATCOMCTY | WA |
| 2022-01-10 | 564-213-0XXX | T-MOBILE USA, INC. | 6529 | WHATCOMCTY | WA |
| 2022-01-10 | 657-540-7XXX | T-MOBILE USA, INC. | 6529 | HUNTITNBCH | CA |
| 2022-01-10 | 657-540-8XXX | T-MOBILE USA, INC. | 6529 | HUNTITNBCH | CA |
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.