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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Apr 2026
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Dec 2025
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Oct 2025
| Assigned | Block | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 2025-08-19 | 630-600-9XXX | T-MOBILE USA, INC. | 6529 | ELMHURST | IL |
| 2025-08-19 | 636-590-9XXX | T-MOBILE USA, INC. | 6529 | CHESTERFLD | MO |
| 2025-08-19 | 737-424-2XXX | T-MOBILE USA, INC. | 6529 | BASTROP | TX |
| 2025-08-19 | 737-424-6XXX | T-MOBILE USA, INC. | 6529 | BASTROP | TX |
| 2025-08-19 | 779-217-7XXX | T-MOBILE USA, INC. | 6529 | DE KALB | IL |
| 2025-08-19 | 779-384-3XXX | T-MOBILE USA, INC. | 6529 | HARVARD | IL |
| 2025-08-19 | 779-422-6XXX | T-MOBILE USA, INC. | 6529 | DE KALB | IL |
| 2025-08-19 | 779-422-7XXX | T-MOBILE USA, INC. | 6529 | DE KALB | IL |
| 2025-08-19 | 779-431-9XXX | T-MOBILE USA, INC. | 6529 | DE KALB | IL |
| 2025-08-19 | 808-980-6XXX | T-MOBILE USA, INC. | 6529 | HILO | HI |
| 2025-08-19 | 808-980-7XXX | T-MOBILE USA, INC. | 6529 | HILO | HI |
| 2025-08-19 | 808-980-8XXX | T-MOBILE USA, INC. | 6529 | HILO | HI |
| 2025-08-19 | 808-980-9XXX | T-MOBILE USA, INC. | 6529 | HILO | HI |
| 2025-08-19 | 872-385-1XXX | T-MOBILE USA, INC. | 6529 | CHICGOZN09 | IL |
| 2025-08-19 | 872-385-2XXX | T-MOBILE USA, INC. | 6529 | CHICGOZN09 | IL |
| 2025-08-19 | 872-385-6XXX | T-MOBILE USA, INC. | 6529 | CHICGOZN09 | IL |
| 2025-08-19 | 872-385-8XXX | T-MOBILE USA, INC. | 6529 | CHICGOZN09 | IL |
| 2025-08-15 | 307-426-6XXX | T-MOBILE USA, INC. | 6529 | CHEYENNE | WY |
| 2025-08-15 | 307-426-7XXX | T-MOBILE USA, INC. | 6529 | CHEYENNE | WY |
| 2025-08-15 | 307-426-8XXX | T-MOBILE USA, INC. | 6529 | CHEYENNE | WY |
| 2025-08-13 | 620-612-5XXX | T-MOBILE USA, INC. | 6529 | GARDENCITY | KS |
| 2025-08-12 | 224-663-0XXX | T-MOBILE USA, INC. | 6529 | ARLIGTNHTS | IL |
| 2025-08-12 | 224-663-1XXX | T-MOBILE USA, INC. | 6529 | ARLIGTNHTS | IL |
| 2025-08-12 | 224-663-2XXX | T-MOBILE USA, INC. | 6529 | ARLIGTNHTS | IL |
| 2025-08-12 | 224-663-3XXX | T-MOBILE USA, INC. | 6529 | ARLIGTNHTS | IL |
| 2025-08-12 | 224-663-4XXX | T-MOBILE USA, INC. | 6529 | ARLIGTNHTS | IL |
| 2025-08-12 | 224-663-5XXX | T-MOBILE USA, INC. | 6529 | ARLIGTNHTS | IL |
| 2025-08-12 | 224-663-6XXX | T-MOBILE USA, INC. | 6529 | ARLIGTNHTS | IL |
| 2025-08-12 | 224-663-7XXX | T-MOBILE USA, INC. | 6529 | ARLIGTNHTS | IL |
| 2025-08-12 | 224-663-8XXX | T-MOBILE USA, INC. | 6529 | ARLIGTNHTS | IL |
| 2025-08-12 | 224-663-9XXX | T-MOBILE USA, INC. | 6529 | ARLIGTNHTS | IL |
| 2025-08-12 | 331-327-3XXX | T-MOBILE USA, INC. | 6529 | ST CHARLES | IL |
| 2025-08-12 | 440-404-8XXX | T-MOBILE USA, INC. | 6529 | ASHTABULA | OH |
| 2025-08-12 | 440-694-4XXX | T-MOBILE USA, INC. | 6529 | ASHTABULA | OH |
| 2025-08-12 | 440-982-8XXX | T-MOBILE USA, INC. | 6529 | ASHTABULA | OH |
| 2025-08-12 | 440-982-9XXX | T-MOBILE USA, INC. | 6529 | ASHTABULA | OH |
| 2025-08-12 | 708-486-9XXX | T-MOBILE USA, INC. | 6529 | MAYWOOD | IL |
| 2025-08-12 | 708-886-5XXX | T-MOBILE USA, INC. | 6529 | SUMMIT | IL |
| 2025-08-12 | 708-886-6XXX | T-MOBILE USA, INC. | 6529 | SUMMIT | IL |
| 2025-08-12 | 737-424-0XXX | T-MOBILE USA, INC. | 6529 | BASTROP | TX |
| 2025-08-12 | 737-424-1XXX | T-MOBILE USA, INC. | 6529 | BASTROP | TX |
| 2025-08-07 | 208-679-6XXX | T-MOBILE USA, INC. | 6529 | BURLEY | ID |
| 2025-08-07 | 262-355-0XXX | T-MOBILE USA, INC. | 6529 | NEWBURG | WI |
| 2025-08-07 | 274-201-2XXX | T-MOBILE USA, INC. | 6529 | NEW LONDON | WI |
| 2025-08-07 | 274-201-3XXX | T-MOBILE USA, INC. | 6529 | NEW LONDON | WI |
| 2025-08-07 | 464-258-2XXX | T-MOBILE USA, INC. | 6529 | CICERO | IL |
| 2025-08-07 | 464-258-3XXX | T-MOBILE USA, INC. | 6529 | CICERO | IL |
| 2025-08-07 | 563-772-3XXX | T-MOBILE USA, INC. | 6529 | CASCADE | IA |
| 2025-08-07 | 682-470-1XXX | T-MOBILE USA, INC. | 6529 | FORT WORTH | TX |
| 2025-08-07 | 682-470-2XXX | T-MOBILE USA, INC. | 6529 | FORT WORTH | TX |
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.