NumberResearchRecent thousands-block assignments
37 blocks assigned in August 2026 · 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, August 2026
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| Assigned | Block | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 2026-08-26 | 669-339-7XXX | T-MOBILE USA, INC. | 6529 | SAN MARTIN | CA |
| 2026-08-25 | 641-674-7XXX | T-MOBILE USA, INC. | 6529 | CENTERVL | IA |
| 2026-08-21 | 208-808-6XXX | T-MOBILE USA, INC. | 6529 | BURLEY | ID |
| 2026-08-21 | 575-306-1XXX | T-MOBILE USA, INC. | 6529 | ROSWELL | NM |
| 2026-08-21 | 575-306-2XXX | T-MOBILE USA, INC. | 6529 | ROSWELL | NM |
| 2026-08-21 | 575-306-7XXX | T-MOBILE USA, INC. | 6529 | ROSWELL | NM |
| 2026-08-21 | 575-306-8XXX | T-MOBILE USA, INC. | 6529 | ROSWELL | NM |
| 2026-08-21 | 575-326-1XXX | T-MOBILE USA, INC. | 6529 | ANTHONY | NM |
| 2026-08-21 | 983-209-7XXX | T-MOBILE USA, INC. | 6529 | FORTLUPTON | CO |
| 2026-08-20 | 442-502-7XXX | T-MOBILE USA, INC. | 6529 | VICTORVL | CA |
| 2026-08-20 | 442-502-8XXX | T-MOBILE USA, INC. | 6529 | VICTORVL | CA |
| 2026-08-20 | 442-502-9XXX | T-MOBILE USA, INC. | 6529 | VICTORVL | CA |
| 2026-08-20 | 805-804-6XXX | T-MOBILE USA, INC. | 6529 | VNTRA CNTL | CA |
| 2026-08-20 | 820-249-8XXX | T-MOBILE USA, INC. | 6529 | VNTRA CNTL | CA |
| 2026-08-20 | 820-249-9XXX | T-MOBILE USA, INC. | 6529 | VNTRA CNTL | CA |
| 2026-08-20 | 925-651-8XXX | T-MOBILE USA, INC. | 6529 | WALNUT CRK | CA |
| 2026-08-20 | 925-651-9XXX | T-MOBILE USA, INC. | 6529 | WALNUT CRK | CA |
| 2026-08-20 | 949-918-6XXX | T-MOBILE USA, INC. | 6529 | SADLBK VLY | CA |
| 2026-08-20 | 949-918-7XXX | T-MOBILE USA, INC. | 6529 | SADLBK VLY | CA |
| 2026-08-14 | 707-371-4XXX | T-MOBILE USA, INC. | 6529 | WILLITS | CA |
| 2026-08-13 | 406-373-2XXX | T-MOBILE USA, INC. | 6529 | BILLINGS | MT |
| 2026-08-13 | 406-517-4XXX | T-MOBILE USA, INC. | 6529 | LIVINGSTON | MT |
| 2026-08-13 | 406-760-3XXX | T-MOBILE USA, INC. | 6529 | GREATFALLS | MT |
| 2026-08-12 | 608-972-0XXX | T-MOBILE USA, INC. | 6529 | BOSCOBEL | WI |
| 2026-08-07 | 262-462-5XXX | T-MOBILE USA, INC. | 6529 | BRISTOL | WI |
| 2026-08-07 | 608-937-2XXX | T-MOBILE USA, INC. | 6529 | DODGEVILLE | WI |
| 2026-08-07 | 608-937-3XXX | T-MOBILE USA, INC. | 6529 | DODGEVILLE | WI |
| 2026-08-05 | 608-953-3XXX | T-MOBILE USA, INC. | 6529 | LANCASTER | WI |
| 2026-08-04 | 530-775-8XXX | T-MOBILE USA, INC. | 6529 | YREKA | CA |
| 2026-08-04 | 608-331-4XXX | T-MOBILE USA, INC. | 6529 | PLATTEVL | WI |
| 2026-08-04 | 608-517-3XXX | T-MOBILE USA, INC. | 6529 | FENNIMORE | WI |
| 2026-08-04 | 608-517-4XXX | T-MOBILE USA, INC. | 6529 | FENNIMORE | WI |
| 2026-08-04 | 681-462-6XXX | T-MOBILE USA, INC. | 6529 | RIPLEY | WV |
| 2026-08-04 | 925-582-3XXX | T-MOBILE USA, INC. | 6529 | DUBLN-SNRM | CA |
| 2026-08-04 | 925-582-4XXX | T-MOBILE USA, INC. | 6529 | DUBLN-SNRM | CA |
| 2026-08-04 | 951-632-1XXX | T-MOBILE USA, INC. | 6529 | HEMT SNJC | CA |
| 2026-08-04 | 951-632-3XXX | T-MOBILE USA, INC. | 6529 | HEMT SNJC | 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.