NumberResearchRecent thousands-block assignments
76 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 2026-04
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 |
|---|---|---|---|---|---|
| 2024-07-30 | 628-309-5XXX | T-MOBILE USA, INC. | 6529 | SNFC CNTRL | CA |
| 2024-07-30 | 628-309-6XXX | T-MOBILE USA, INC. | 6529 | SNFC CNTRL | CA |
| 2024-07-30 | 628-309-7XXX | T-MOBILE USA, INC. | 6529 | SNFC CNTRL | CA |
| 2024-07-30 | 628-309-8XXX | T-MOBILE USA, INC. | 6529 | SNFC CNTRL | CA |
| 2024-07-30 | 628-309-9XXX | T-MOBILE USA, INC. | 6529 | SNFC CNTRL | CA |
| 2024-07-30 | 657-754-6XXX | T-MOBILE USA, INC. | 6529 | GARDEN GRV | CA |
| 2024-07-30 | 657-754-7XXX | T-MOBILE USA, INC. | 6529 | GARDEN GRV | CA |
| 2024-07-30 | 657-754-8XXX | T-MOBILE USA, INC. | 6529 | GARDEN GRV | CA |
| 2024-07-30 | 657-754-9XXX | T-MOBILE USA, INC. | 6529 | GARDEN GRV | CA |
| 2024-07-30 | 712-337-2XXX | T-MOBILE USA, INC. | 6529 | ARNOLDS PK | IA |
| 2024-07-30 | 747-370-9XXX | T-MOBILE USA, INC. | 6529 | SNFN GRHL | CA |
| 2024-07-30 | 840-262-3XXX | T-MOBILE USA, INC. | 6529 | ARROWHEAD | CA |
| 2024-07-30 | 840-262-4XXX | T-MOBILE USA, INC. | 6529 | ARROWHEAD | CA |
| 2024-07-30 | 840-262-5XXX | T-MOBILE USA, INC. | 6529 | ARROWHEAD | CA |
| 2024-07-30 | 840-262-6XXX | T-MOBILE USA, INC. | 6529 | ARROWHEAD | CA |
| 2024-07-30 | 840-262-7XXX | T-MOBILE USA, INC. | 6529 | ARROWHEAD | CA |
| 2024-07-30 | 840-262-8XXX | T-MOBILE USA, INC. | 6529 | ARROWHEAD | CA |
| 2024-07-30 | 840-262-9XXX | T-MOBILE USA, INC. | 6529 | ARROWHEAD | CA |
| 2024-07-30 | 949-820-8XXX | T-MOBILE USA, INC. | 6529 | NEWPORTBCH | CA |
| 2024-07-30 | 949-820-9XXX | T-MOBILE USA, INC. | 6529 | NEWPORTBCH | CA |
| 2024-07-29 | 213-809-0XXX | T-MOBILE USA, INC. | 6529 | LSAN DA 05 | CA |
| 2024-07-29 | 213-809-4XXX | T-MOBILE USA, INC. | 6529 | LSAN DA 05 | CA |
| 2024-07-29 | 213-809-5XXX | T-MOBILE USA, INC. | 6529 | LSAN DA 05 | CA |
| 2024-07-29 | 213-809-6XXX | T-MOBILE USA, INC. | 6529 | LSAN DA 05 | CA |
| 2024-07-29 | 279-252-7XXX | T-MOBILE USA, INC. | 6529 | FAIR OAKS | CA |
| 2024-07-29 | 341-250-4XXX | T-MOBILE USA, INC. | 6529 | OKLD FRTVL | CA |
| 2024-07-29 | 341-250-5XXX | T-MOBILE USA, INC. | 6529 | OKLD FRTVL | CA |
| 2024-07-29 | 341-250-6XXX | T-MOBILE USA, INC. | 6529 | OKLD FRTVL | CA |
| 2024-07-29 | 341-250-7XXX | T-MOBILE USA, INC. | 6529 | OKLD FRTVL | CA |
| 2024-07-29 | 350-225-8XXX | T-MOBILE USA, INC. | 6529 | LOS BANOS | CA |
| 2024-07-29 | 350-225-9XXX | T-MOBILE USA, INC. | 6529 | LOS BANOS | CA |
| 2024-07-29 | 369-216-7XXX | T-MOBILE USA, INC. | 6529 | UKIAH | CA |
| 2024-07-29 | 369-216-8XXX | T-MOBILE USA, INC. | 6529 | UKIAH | CA |
| 2024-07-29 | 385-378-3XXX | T-MOBILE USA, INC. | 6529 | MURRAY | UT |
| 2024-07-29 | 385-580-2XXX | T-MOBILE USA, INC. | 6529 | MURRAY | UT |
| 2024-07-29 | 424-467-2XXX | T-MOBILE USA, INC. | 6529 | W ANGELES | CA |
| 2024-07-29 | 424-467-3XXX | T-MOBILE USA, INC. | 6529 | W ANGELES | CA |
| 2024-07-29 | 424-535-5XXX | T-MOBILE USA, INC. | 6529 | W ANGELES | CA |
| 2024-07-29 | 424-565-1XXX | T-MOBILE USA, INC. | 6529 | TORRANCE | CA |
| 2024-07-29 | 424-565-2XXX | T-MOBILE USA, INC. | 6529 | TORRANCE | CA |
| 2024-07-29 | 424-565-3XXX | T-MOBILE USA, INC. | 6529 | TORRANCE | CA |
| 2024-07-29 | 424-565-4XXX | T-MOBILE USA, INC. | 6529 | TORRANCE | CA |
| 2024-07-29 | 424-946-4XXX | T-MOBILE USA, INC. | 6529 | W ANGELES | CA |
| 2024-07-29 | 562-638-1XXX | T-MOBILE USA, INC. | 6529 | NORWALK | CA |
| 2024-07-29 | 562-638-2XXX | T-MOBILE USA, INC. | 6529 | NORWALK | CA |
| 2024-07-29 | 562-638-3XXX | T-MOBILE USA, INC. | 6529 | NORWALK | CA |
| 2024-07-29 | 562-638-4XXX | T-MOBILE USA, INC. | 6529 | NORWALK | CA |
| 2024-07-29 | 562-737-0XXX | T-MOBILE USA, INC. | 6529 | LAKEWOOD | CA |
| 2024-07-29 | 562-737-1XXX | T-MOBILE USA, INC. | 6529 | LAKEWOOD | CA |
| 2024-07-29 | 562-737-2XXX | T-MOBILE USA, INC. | 6529 | LAKEWOOD | CA |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 2026-04 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.