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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Apr 2026
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Oct 2025
| Assigned | Block | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 2022-05-13 | 820-587-3XXX | T-MOBILE USA, INC. | 6529 | SANBARBARA | CA |
| 2022-05-13 | 820-587-4XXX | T-MOBILE USA, INC. | 6529 | SANBARBARA | CA |
| 2022-05-13 | 909-925-5XXX | T-MOBILE USA, INC. | 6529 | CHINO | CA |
| 2022-05-13 | 945-257-0XXX | T-MOBILE USA, INC. | 6529 | FRISCO | TX |
| 2022-05-13 | 945-257-1XXX | T-MOBILE USA, INC. | 6529 | FRISCO | TX |
| 2022-05-13 | 945-257-2XXX | T-MOBILE USA, INC. | 6529 | FRISCO | TX |
| 2022-05-13 | 945-257-3XXX | T-MOBILE USA, INC. | 6529 | FRISCO | TX |
| 2022-05-13 | 945-257-4XXX | T-MOBILE USA, INC. | 6529 | FRISCO | TX |
| 2022-05-13 | 945-257-5XXX | T-MOBILE USA, INC. | 6529 | FRISCO | TX |
| 2022-05-13 | 945-257-6XXX | T-MOBILE USA, INC. | 6529 | FRISCO | TX |
| 2022-05-13 | 945-257-7XXX | T-MOBILE USA, INC. | 6529 | FRISCO | TX |
| 2022-05-13 | 945-257-8XXX | T-MOBILE USA, INC. | 6529 | FRISCO | TX |
| 2022-05-13 | 945-257-9XXX | T-MOBILE USA, INC. | 6529 | FRISCO | TX |
| 2022-05-13 | 951-594-5XXX | T-MOBILE USA, INC. | 6529 | MORENO | CA |
| 2022-05-13 | 951-594-6XXX | T-MOBILE USA, INC. | 6529 | MORENO | CA |
| 2022-05-13 | 971-825-7XXX | T-MOBILE USA, INC. | 6529 | CLACKAMAS | OR |
| 2022-05-13 | 971-825-8XXX | T-MOBILE USA, INC. | 6529 | CLACKAMAS | OR |
| 2022-05-13 | 971-825-9XXX | T-MOBILE USA, INC. | 6529 | CLACKAMAS | OR |
| 2022-05-11 | 262-331-5XXX | T-MOBILE USA, INC. | 6529 | PARKSIDE | WI |
| 2022-05-11 | 469-238-3XXX | T-MOBILE USA, INC. | 6529 | FRISCO | TX |
| 2022-05-11 | 469-238-4XXX | T-MOBILE USA, INC. | 6529 | FRISCO | TX |
| 2022-05-11 | 469-238-5XXX | T-MOBILE USA, INC. | 6529 | FRISCO | TX |
| 2022-05-11 | 469-238-6XXX | T-MOBILE USA, INC. | 6529 | FRISCO | TX |
| 2022-05-11 | 469-536-5XXX | T-MOBILE USA, INC. | 6529 | FRISCO | TX |
| 2022-05-11 | 945-249-0XXX | T-MOBILE USA, INC. | 6529 | FRISCO | TX |
| 2022-05-11 | 945-249-1XXX | T-MOBILE USA, INC. | 6529 | FRISCO | TX |
| 2022-05-11 | 945-249-2XXX | T-MOBILE USA, INC. | 6529 | FRISCO | TX |
| 2022-05-10 | 432-316-9XXX | T-MOBILE USA, INC. | 6529 | ODESSA | TX |
| 2022-05-10 | 432-924-4XXX | T-MOBILE USA, INC. | 6529 | ODESSA | TX |
| 2022-05-10 | 903-867-0XXX | T-MOBILE USA, INC. | 6529 | MT VERNON | TX |
| 2022-05-06 | 707-850-7XXX | T-MOBILE USA, INC. | 6529 | LOWER LAKE | CA |
| 2022-05-04 | 620-601-8XXX | T-MOBILE USA, INC. | 6529 | PRATT | KS |
| 2022-05-04 | 620-601-9XXX | T-MOBILE USA, INC. | 6529 | PRATT | KS |
| 2022-05-03 | 539-281-5XXX | T-MOBILE USA, INC. | 6529 | BROKENARRW | OK |
| 2022-05-03 | 539-281-6XXX | T-MOBILE USA, INC. | 6529 | BROKENARRW | OK |
| 2022-05-03 | 608-810-0XXX | T-MOBILE USA, INC. | 6529 | PORTAGE | WI |
| 2022-05-03 | 620-419-6XXX | T-MOBILE USA, INC. | 6529 | PRATT | KS |
| 2022-05-03 | 872-346-5XXX | T-MOBILE USA, INC. | 6529 | CHICGOZN04 | IL |
| 2022-05-03 | 872-346-9XXX | T-MOBILE USA, INC. | 6529 | CHICGOZN04 | IL |
| 2022-05-03 | 903-921-5XXX | T-MOBILE USA, INC. | 6529 | LONGVIEW | TX |
| 2022-05-03 | 903-921-6XXX | T-MOBILE USA, INC. | 6529 | LONGVIEW | TX |
| 2022-05-02 | 564-218-9XXX | T-MOBILE USA, INC. | 6529 | BREMERTON | WA |
| 2022-04-29 | 505-496-5XXX | T-MOBILE USA, INC. | 6529 | GRANTS | NM |
| 2022-04-29 | 539-316-9XXX | T-MOBILE USA, INC. | 6529 | MCALESTER | OK |
| 2022-04-29 | 564-229-0XXX | T-MOBILE USA, INC. | 6529 | BREMERTON | WA |
| 2022-04-29 | 564-229-1XXX | T-MOBILE USA, INC. | 6529 | BREMERTON | WA |
| 2022-04-29 | 564-229-2XXX | T-MOBILE USA, INC. | 6529 | BREMERTON | WA |
| 2022-04-29 | 564-229-3XXX | T-MOBILE USA, INC. | 6529 | BREMERTON | WA |
| 2022-04-29 | 573-816-9XXX | T-MOBILE USA, INC. | 6529 | SIKESTON | MO |
| 2022-04-29 | 580-707-7XXX | T-MOBILE USA, INC. | 6529 | ENID | OK |
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.