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 |
|---|---|---|---|---|---|
| 2025-09-25 | 219-377-4XXX | T-MOBILE USA, INC. | 6529 | E CHICAGO | IN |
| 2025-09-25 | 219-377-5XXX | T-MOBILE USA, INC. | 6529 | E CHICAGO | IN |
| 2025-09-25 | 986-283-4XXX | T-MOBILE USA, INC. | 6529 | BOISE | ID |
| 2025-09-25 | 986-290-1XXX | T-MOBILE USA, INC. | 6529 | BOISE | ID |
| 2025-09-25 | 986-996-2XXX | T-MOBILE USA, INC. | 6529 | BOISE | ID |
| 2025-09-25 | 986-996-3XXX | T-MOBILE USA, INC. | 6529 | BOISE | ID |
| 2025-09-24 | 262-460-4XXX | T-MOBILE USA, INC. | 6529 | ALLENTON | WI |
| 2025-09-24 | 262-460-5XXX | T-MOBILE USA, INC. | 6529 | ALLENTON | WI |
| 2025-09-24 | 262-460-6XXX | T-MOBILE USA, INC. | 6529 | ALLENTON | WI |
| 2025-09-24 | 562-847-0XXX | T-MOBILE USA, INC. | 6529 | ALAMITOS | CA |
| 2025-09-24 | 562-847-1XXX | T-MOBILE USA, INC. | 6529 | ALAMITOS | CA |
| 2025-09-24 | 562-847-2XXX | T-MOBILE USA, INC. | 6529 | ALAMITOS | CA |
| 2025-09-24 | 562-847-3XXX | T-MOBILE USA, INC. | 6529 | ALAMITOS | CA |
| 2025-09-24 | 562-847-4XXX | T-MOBILE USA, INC. | 6529 | ALAMITOS | CA |
| 2025-09-24 | 562-847-5XXX | T-MOBILE USA, INC. | 6529 | ALAMITOS | CA |
| 2025-09-24 | 562-847-6XXX | T-MOBILE USA, INC. | 6529 | ALAMITOS | CA |
| 2025-09-24 | 562-847-7XXX | T-MOBILE USA, INC. | 6529 | ALAMITOS | CA |
| 2025-09-24 | 562-847-8XXX | T-MOBILE USA, INC. | 6529 | ALAMITOS | CA |
| 2025-09-24 | 562-847-9XXX | T-MOBILE USA, INC. | 6529 | ALAMITOS | CA |
| 2025-09-24 | 575-551-5XXX | T-MOBILE USA, INC. | 6529 | ALAMOGORDO | NM |
| 2025-09-24 | 657-820-6XXX | T-MOBILE USA, INC. | 6529 | ANAHEIM | CA |
| 2025-09-24 | 657-820-7XXX | T-MOBILE USA, INC. | 6529 | ANAHEIM | CA |
| 2025-09-24 | 657-820-8XXX | T-MOBILE USA, INC. | 6529 | ANAHEIM | CA |
| 2025-09-24 | 657-820-9XXX | T-MOBILE USA, INC. | 6529 | ANAHEIM | CA |
| 2025-09-24 | 831-327-2XXX | T-MOBILE USA, INC. | 6529 | HOLLISTER | CA |
| 2025-09-24 | 840-283-1XXX | T-MOBILE USA, INC. | 6529 | ARROWHEAD | CA |
| 2025-09-24 | 840-283-2XXX | T-MOBILE USA, INC. | 6529 | ARROWHEAD | CA |
| 2025-09-24 | 840-283-3XXX | T-MOBILE USA, INC. | 6529 | ARROWHEAD | CA |
| 2025-09-24 | 840-283-4XXX | T-MOBILE USA, INC. | 6529 | ARROWHEAD | CA |
| 2025-09-24 | 840-283-5XXX | T-MOBILE USA, INC. | 6529 | ARROWHEAD | CA |
| 2025-09-24 | 840-283-6XXX | T-MOBILE USA, INC. | 6529 | ARROWHEAD | CA |
| 2025-09-24 | 949-883-8XXX | T-MOBILE USA, INC. | 6529 | CAPITRNVLY | CA |
| 2025-09-24 | 949-883-9XXX | T-MOBILE USA, INC. | 6529 | CAPITRNVLY | CA |
| 2025-09-23 | 254-605-5XXX | T-MOBILE USA, INC. | 6529 | CAMERON | TX |
| 2025-09-23 | 254-606-7XXX | T-MOBILE USA, INC. | 6529 | CAMERON | TX |
| 2025-09-23 | 254-606-8XXX | T-MOBILE USA, INC. | 6529 | CAMERON | TX |
| 2025-09-23 | 254-606-9XXX | T-MOBILE USA, INC. | 6529 | CAMERON | TX |
| 2025-09-23 | 254-975-6XXX | T-MOBILE USA, INC. | 6529 | CAMERON | TX |
| 2025-09-23 | 254-975-7XXX | T-MOBILE USA, INC. | 6529 | CAMERON | TX |
| 2025-09-23 | 406-536-7XXX | T-MOBILE USA, INC. | 6529 | BOZEMAN | MT |
| 2025-09-23 | 509-708-5XXX | T-MOBILE USA, INC. | 6529 | ELLENSBURG | WA |
| 2025-09-23 | 509-708-6XXX | T-MOBILE USA, INC. | 6529 | ELLENSBURG | WA |
| 2025-09-23 | 509-708-7XXX | T-MOBILE USA, INC. | 6529 | ELLENSBURG | WA |
| 2025-09-22 | 737-424-3XXX | T-MOBILE USA, INC. | 6529 | BASTROP | TX |
| 2025-09-22 | 737-424-4XXX | T-MOBILE USA, INC. | 6529 | BASTROP | TX |
| 2025-09-19 | 279-254-4XXX | T-MOBILE USA, INC. | 6529 | ELK GROVE | CA |
| 2025-09-19 | 279-254-7XXX | T-MOBILE USA, INC. | 6529 | ELK GROVE | CA |
| 2025-09-19 | 425-568-1XXX | T-MOBILE USA, INC. | 6529 | BELLEVUE | WA |
| 2025-09-19 | 425-568-2XXX | T-MOBILE USA, INC. | 6529 | BELLEVUE | WA |
| 2025-09-19 | 425-568-3XXX | T-MOBILE USA, INC. | 6529 | BELLEVUE | WA |
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.