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 |
|---|---|---|---|---|---|
| 2025-12-10 | 458-337-9XXX | T-MOBILE USA, INC. | 6529 | ALBANY | OR |
| 2025-12-10 | 458-338-9XXX | T-MOBILE USA, INC. | 6529 | BEND | OR |
| 2025-12-10 | 458-347-6XXX | T-MOBILE USA, INC. | 6529 | ALBANY | OR |
| 2025-12-10 | 628-315-1XXX | T-MOBILE USA, INC. | 6529 | BELVEDERE | CA |
| 2025-12-10 | 628-315-2XXX | T-MOBILE USA, INC. | 6529 | BELVEDERE | CA |
| 2025-12-10 | 628-315-3XXX | T-MOBILE USA, INC. | 6529 | BELVEDERE | CA |
| 2025-12-10 | 669-871-3XXX | T-MOBILE USA, INC. | 6529 | CAMPBELL | CA |
| 2025-12-10 | 669-871-4XXX | T-MOBILE USA, INC. | 6529 | CAMPBELL | CA |
| 2025-12-10 | 669-871-6XXX | T-MOBILE USA, INC. | 6529 | CAMPBELL | CA |
| 2025-12-10 | 738-202-9XXX | T-MOBILE USA, INC. | 6529 | LSAN DA 04 | CA |
| 2025-12-10 | 738-999-3XXX | T-MOBILE USA, INC. | 6529 | LSAN DA 04 | CA |
| 2025-12-09 | 262-460-7XXX | T-MOBILE USA, INC. | 6529 | ALLENTON | WI |
| 2025-12-09 | 440-982-4XXX | T-MOBILE USA, INC. | 6529 | ASHTABULA | OH |
| 2025-12-09 | 464-251-8XXX | T-MOBILE USA, INC. | 6529 | CHICAGOHTS | IL |
| 2025-12-09 | 464-251-9XXX | T-MOBILE USA, INC. | 6529 | CHICAGOHTS | IL |
| 2025-12-09 | 534-246-1XXX | T-MOBILE USA, INC. | 6529 | WAUSAU | WI |
| 2025-12-09 | 567-490-0XXX | T-MOBILE USA, INC. | 6529 | ASHLAND | OH |
| 2025-12-09 | 608-920-0XXX | T-MOBILE USA, INC. | 6529 | STOUGHTON | WI |
| 2025-12-09 | 708-739-1XXX | T-MOBILE USA, INC. | 6529 | CHICAGOHTS | IL |
| 2025-12-09 | 708-965-5XXX | T-MOBILE USA, INC. | 6529 | CHICAGOHTS | IL |
| 2025-12-09 | 737-426-4XXX | T-MOBILE USA, INC. | 6529 | BASTROP | TX |
| 2025-12-09 | 737-426-5XXX | T-MOBILE USA, INC. | 6529 | BASTROP | TX |
| 2025-12-09 | 737-426-7XXX | T-MOBILE USA, INC. | 6529 | BASTROP | TX |
| 2025-12-09 | 806-213-4XXX | T-MOBILE USA, INC. | 6529 | PLAINVIEW | TX |
| 2025-12-09 | 872-387-8XXX | T-MOBILE USA, INC. | 6529 | CHICGOZN09 | IL |
| 2025-12-09 | 920-250-4XXX | T-MOBILE USA, INC. | 6529 | NEW LONDON | WI |
| 2025-12-09 | 920-472-5XXX | T-MOBILE USA, INC. | 6529 | NEW LONDON | WI |
| 2025-12-09 | 970-807-3XXX | T-MOBILE USA, INC. | 6529 | ASPEN | CO |
| 2025-12-09 | 970-807-4XXX | T-MOBILE USA, INC. | 6529 | ASPEN | CO |
| 2025-12-05 | 253-436-1XXX | T-MOBILE USA, INC. | 6529 | AUBURN | WA |
| 2025-12-05 | 253-436-2XXX | T-MOBILE USA, INC. | 6529 | AUBURN | WA |
| 2025-12-05 | 253-436-3XXX | T-MOBILE USA, INC. | 6529 | AUBURN | WA |
| 2025-12-05 | 253-436-4XXX | T-MOBILE USA, INC. | 6529 | AUBURN | WA |
| 2025-12-05 | 425-575-4XXX | T-MOBILE USA, INC. | 6529 | BELLEVUE | WA |
| 2025-12-05 | 425-575-5XXX | T-MOBILE USA, INC. | 6529 | BELLEVUE | WA |
| 2025-12-05 | 425-575-6XXX | T-MOBILE USA, INC. | 6529 | BELLEVUE | WA |
| 2025-12-05 | 425-575-7XXX | T-MOBILE USA, INC. | 6529 | BELLEVUE | WA |
| 2025-12-05 | 501-591-9XXX | T-MOBILE USA, INC. | 6529 | BEEBE | AR |
| 2025-12-05 | 515-403-0XXX | T-MOBILE USA, INC. | 6529 | AMES | IA |
| 2025-12-05 | 515-403-3XXX | T-MOBILE USA, INC. | 6529 | AMES | IA |
| 2025-12-05 | 515-403-9XXX | T-MOBILE USA, INC. | 6529 | AMES | IA |
| 2025-12-05 | 641-630-8XXX | T-MOBILE USA, INC. | 6529 | HAMPTON | IA |
| 2025-12-05 | 870-564-0XXX | T-MOBILE USA, INC. | 6529 | DELL | AR |
| 2025-12-05 | 870-981-2XXX | T-MOBILE USA, INC. | 6529 | BIGGERS | AR |
| 2025-12-04 | 575-348-1XXX | T-MOBILE USA, INC. | 6529 | ALAMOGORDO | NM |
| 2025-12-03 | 213-957-4XXX | T-MOBILE USA, INC. | 6529 | LSAN DA 13 | CA |
| 2025-12-03 | 213-957-5XXX | T-MOBILE USA, INC. | 6529 | LSAN DA 13 | CA |
| 2025-12-03 | 254-603-1XXX | T-MOBILE USA, INC. | 6529 | VALLEY ML | TX |
| 2025-12-03 | 307-435-9XXX | T-MOBILE USA, INC. | 6529 | SHERIDAN | WY |
| 2025-12-03 | 307-533-0XXX | T-MOBILE USA, INC. | 6529 | SHERIDAN | WY |
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.