NumberResearchRecent thousands-block assignments
76 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026
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 |
|---|---|---|---|---|---|
| 2022-09-01 | 213-887-6XXX | T-MOBILE USA, INC. | 6529 | LSAN DA 10 | CA |
| 2022-09-01 | 213-887-8XXX | T-MOBILE USA, INC. | 6529 | LSAN DA 10 | CA |
| 2022-09-01 | 213-898-3XXX | T-MOBILE USA, INC. | 6529 | LSAN DA 05 | CA |
| 2022-09-01 | 213-898-4XXX | T-MOBILE USA, INC. | 6529 | LSAN DA 05 | CA |
| 2022-09-01 | 213-898-5XXX | T-MOBILE USA, INC. | 6529 | LSAN DA 05 | CA |
| 2022-09-01 | 323-967-3XXX | T-MOBILE USA, INC. | 6529 | LSAN DA 09 | CA |
| 2022-09-01 | 408-581-1XXX | T-MOBILE USA, INC. | 6529 | SNJS WEST | CA |
| 2022-09-01 | 408-581-2XXX | T-MOBILE USA, INC. | 6529 | SNJS WEST | CA |
| 2022-09-01 | 408-581-3XXX | T-MOBILE USA, INC. | 6529 | SNJS WEST | CA |
| 2022-09-01 | 408-581-4XXX | T-MOBILE USA, INC. | 6529 | SNJS WEST | CA |
| 2022-09-01 | 408-581-5XXX | T-MOBILE USA, INC. | 6529 | SNJS WEST | CA |
| 2022-09-01 | 562-319-0XXX | T-MOBILE USA, INC. | 6529 | DOWNEY | CA |
| 2022-09-01 | 562-319-1XXX | T-MOBILE USA, INC. | 6529 | DOWNEY | CA |
| 2022-09-01 | 562-319-6XXX | T-MOBILE USA, INC. | 6529 | DOWNEY | CA |
| 2022-09-01 | 747-342-3XXX | T-MOBILE USA, INC. | 6529 | LACRSCENTA | CA |
| 2022-09-01 | 747-355-6XXX | T-MOBILE USA, INC. | 6529 | NO HOLLYWD | CA |
| 2022-09-01 | 747-355-7XXX | T-MOBILE USA, INC. | 6529 | NO HOLLYWD | CA |
| 2022-09-01 | 818-358-1XXX | T-MOBILE USA, INC. | 6529 | NO HOLLYWD | CA |
| 2022-09-01 | 818-358-7XXX | T-MOBILE USA, INC. | 6529 | NO HOLLYWD | CA |
| 2022-09-01 | 909-697-1XXX | T-MOBILE USA, INC. | 6529 | FONTANA | CA |
| 2022-09-01 | 909-900-4XXX | T-MOBILE USA, INC. | 6529 | FONTANA | CA |
| 2022-09-01 | 925-501-0XXX | T-MOBILE USA, INC. | 6529 | ANTIOCH | CA |
| 2022-09-01 | 925-501-1XXX | T-MOBILE USA, INC. | 6529 | ANTIOCH | CA |
| 2022-09-01 | 925-501-2XXX | T-MOBILE USA, INC. | 6529 | ANTIOCH | CA |
| 2022-09-01 | 925-501-3XXX | T-MOBILE USA, INC. | 6529 | ANTIOCH | CA |
| 2022-09-01 | 928-867-7XXX | T-MOBILE USA, INC. | 6529 | KINGMAN | AZ |
| 2022-09-01 | 928-867-8XXX | T-MOBILE USA, INC. | 6529 | KINGMAN | AZ |
| 2022-09-01 | 928-867-9XXX | T-MOBILE USA, INC. | 6529 | KINGMAN | AZ |
| 2022-09-01 | 949-243-8XXX | T-MOBILE USA, INC. | 6529 | SADLBK VLY | CA |
| 2022-09-01 | 949-685-5XXX | T-MOBILE USA, INC. | 6529 | SADLBK VLY | CA |
| 2022-09-01 | 949-685-7XXX | T-MOBILE USA, INC. | 6529 | SADLBK VLY | CA |
| 2022-09-01 | 951-597-0XXX | T-MOBILE USA, INC. | 6529 | CORONA | CA |
| 2022-09-01 | 951-597-3XXX | T-MOBILE USA, INC. | 6529 | CORONA | CA |
| 2022-08-31 | 406-402-4XXX | T-MOBILE USA, INC. | 6529 | GREATFALLS | MT |
| 2022-08-30 | 331-600-2XXX | T-MOBILE USA, INC. | 6529 | WHEATON | IL |
| 2022-08-30 | 331-600-7XXX | T-MOBILE USA, INC. | 6529 | WHEATON | IL |
| 2022-08-30 | 618-733-4XXX | T-MOBILE USA, INC. | 6529 | CARTERVL | IL |
| 2022-08-30 | 657-767-9XXX | T-MOBILE USA, INC. | 6529 | FULLERTON | CA |
| 2022-08-30 | 714-930-9XXX | T-MOBILE USA, INC. | 6529 | FULLERTON | CA |
| 2022-08-30 | 805-891-5XXX | T-MOBILE USA, INC. | 6529 | MOORPARK | CA |
| 2022-08-30 | 805-891-6XXX | T-MOBILE USA, INC. | 6529 | MOORPARK | CA |
| 2022-08-30 | 805-891-7XXX | T-MOBILE USA, INC. | 6529 | MOORPARK | CA |
| 2022-08-29 | 262-341-8XXX | T-MOBILE USA, INC. | 6529 | ALLENTON | WI |
| 2022-08-29 | 262-341-9XXX | T-MOBILE USA, INC. | 6529 | ALLENTON | WI |
| 2022-08-29 | 262-382-0XXX | T-MOBILE USA, INC. | 6529 | THIENSVL | WI |
| 2022-08-29 | 414-381-9XXX | T-MOBILE USA, INC. | 6529 | MILWAUKZN4 | WI |
| 2022-08-26 | 262-566-4XXX | T-MOBILE USA, INC. | 6529 | ALLENTON | WI |
| 2022-08-26 | 262-566-7XXX | T-MOBILE USA, INC. | 6529 | ALLENTON | WI |
| 2022-08-26 | 414-742-2XXX | T-MOBILE USA, INC. | 6529 | MILWAUKZN4 | WI |
| 2022-08-26 | 414-742-3XXX | T-MOBILE USA, INC. | 6529 | MILWAUKZN4 | WI |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.