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 |
|---|---|---|---|---|---|
| 2026-09-17 | 279-294-2XXX | T-MOBILE USA, INC. | 6529 | SCRM MAIN | CA |
| 2026-09-17 | 279-294-7XXX | T-MOBILE USA, INC. | 6529 | SCRM MAIN | CA |
| 2026-09-17 | 279-294-8XXX | T-MOBILE USA, INC. | 6529 | SCRM MAIN | CA |
| 2026-09-17 | 279-880-2XXX | T-MOBILE USA, INC. | 6529 | SCRM MAIN | CA |
| 2026-09-17 | 279-880-3XXX | T-MOBILE USA, INC. | 6529 | SCRM MAIN | CA |
| 2026-09-17 | 279-880-4XXX | T-MOBILE USA, INC. | 6529 | SCRM MAIN | CA |
| 2026-09-17 | 279-880-5XXX | T-MOBILE USA, INC. | 6529 | SCRM MAIN | CA |
| 2026-09-17 | 406-517-5XXX | T-MOBILE USA, INC. | 6529 | LIVINGSTON | MT |
| 2026-09-17 | 406-520-1XXX | T-MOBILE USA, INC. | 6529 | ABSAROKEE | MT |
| 2026-09-17 | 406-665-0XXX | T-MOBILE USA, INC. | 6529 | HARDIN | MT |
| 2026-09-17 | 406-815-3XXX | T-MOBILE USA, INC. | 6529 | RED LODGE | MT |
| 2026-09-17 | 406-940-1XXX | T-MOBILE USA, INC. | 6529 | MOLT | MT |
| 2026-09-17 | 406-997-2XXX | T-MOBILE USA, INC. | 6529 | FROMBERG | MT |
| 2026-09-17 | 820-820-2XXX | T-MOBILE USA, INC. | 6529 | SANBARBARA | CA |
| 2026-09-17 | 820-820-3XXX | T-MOBILE USA, INC. | 6529 | SANBARBARA | CA |
| 2026-09-17 | 820-820-4XXX | T-MOBILE USA, INC. | 6529 | SANBARBARA | CA |
| 2026-09-17 | 925-591-2XXX | T-MOBILE USA, INC. | 6529 | LIVERMORE | CA |
| 2026-09-16 | 986-308-8XXX | T-MOBILE USA, INC. | 6529 | IDAHOFALLS | ID |
| 2026-09-16 | 986-308-9XXX | T-MOBILE USA, INC. | 6529 | IDAHOFALLS | ID |
| 2026-09-15 | 304-512-8XXX | T-MOBILE USA, INC. | 6529 | RAVENSWOOD | WV |
| 2026-09-14 | 208-430-1XXX | T-MOBILE USA, INC. | 6529 | BURLEY | ID |
| 2026-09-14 | 208-430-8XXX | T-MOBILE USA, INC. | 6529 | BURLEY | ID |
| 2026-09-14 | 208-450-6XXX | T-MOBILE USA, INC. | 6529 | KETCHUM | ID |
| 2026-09-14 | 208-929-1XXX | T-MOBILE USA, INC. | 6529 | COERDALENE | ID |
| 2026-09-14 | 575-243-9XXX | T-MOBILE USA, INC. | 6529 | ARTESIA | NM |
| 2026-09-14 | 970-916-9XXX | T-MOBILE USA, INC. | 6529 | ASPEN | CO |
| 2026-09-14 | 970-960-0XXX | T-MOBILE USA, INC. | 6529 | MONTROSE | CO |
| 2026-09-14 | 971-259-2XXX | T-MOBILE USA, INC. | 6529 | AMITY | OR |
| 2026-09-14 | 986-438-1XXX | T-MOBILE USA, INC. | 6529 | BOISE | ID |
| 2026-09-14 | 986-438-8XXX | T-MOBILE USA, INC. | 6529 | BOISE | ID |
| 2026-09-14 | 986-438-9XXX | T-MOBILE USA, INC. | 6529 | BOISE | ID |
| 2026-09-10 | 235-666-5XXX | T-MOBILE USA, INC. | 6529 | ELDON | MO |
| 2026-09-10 | 262-386-6XXX | T-MOBILE USA, INC. | 6529 | GENOA CITY | WI |
| 2026-09-10 | 319-468-7XXX | T-MOBILE USA, INC. | 6529 | INDEPNDNCE | IA |
| 2026-09-10 | 319-709-3XXX | T-MOBILE USA, INC. | 6529 | WINTHROP | IA |
| 2026-09-10 | 572-252-5XXX | T-MOBILE USA, INC. | 6529 | YUKON | OK |
| 2026-09-10 | 580-386-7XXX | T-MOBILE USA, INC. | 6529 | DAVIS | OK |
| 2026-09-10 | 682-982-0XXX | T-MOBILE USA, INC. | 6529 | FORT WORTH | TX |
| 2026-09-10 | 682-982-1XXX | T-MOBILE USA, INC. | 6529 | FORT WORTH | TX |
| 2026-09-10 | 682-982-2XXX | T-MOBILE USA, INC. | 6529 | FORT WORTH | TX |
| 2026-09-10 | 682-982-3XXX | T-MOBILE USA, INC. | 6529 | FORT WORTH | TX |
| 2026-09-10 | 682-982-4XXX | T-MOBILE USA, INC. | 6529 | FORT WORTH | TX |
| 2026-09-10 | 682-982-5XXX | T-MOBILE USA, INC. | 6529 | FORT WORTH | TX |
| 2026-09-10 | 682-982-6XXX | T-MOBILE USA, INC. | 6529 | FORT WORTH | TX |
| 2026-09-10 | 682-982-7XXX | T-MOBILE USA, INC. | 6529 | FORT WORTH | TX |
| 2026-09-10 | 682-982-8XXX | T-MOBILE USA, INC. | 6529 | FORT WORTH | TX |
| 2026-09-10 | 682-982-9XXX | T-MOBILE USA, INC. | 6529 | FORT WORTH | TX |
| 2026-09-10 | 920-871-3XXX | T-MOBILE USA, INC. | 6529 | HILBERT | WI |
| 2026-09-09 | 650-792-5XXX | T-MOBILE USA, INC. | 6529 | PALO ALTO | CA |
| 2026-09-09 | 650-792-6XXX | T-MOBILE USA, INC. | 6529 | PALO ALTO | CA |
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.