NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

66 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

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
T-MOBILE USA, INC. 66
New assignments by month Sep 2026 Aug 2026 Jul 2026 Jun 2026 May 2026 Apr 2026 Mar 2026 Feb 2026 Jan 2026 Dec 2025 Nov 2025 Oct 2025
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Recent thousands-block assignments
AssignedBlockAssigneeOCNRate centerState
2021-12-14 682-364-9XXX T-MOBILE USA, INC. 6529 GRANBURY TX
2021-12-14 682-366-0XXX T-MOBILE USA, INC. 6529 CLEBURNE TX
2021-12-14 682-366-1XXX T-MOBILE USA, INC. 6529 CLEBURNE TX
2021-12-14 682-366-2XXX T-MOBILE USA, INC. 6529 CLEBURNE TX
2021-12-14 682-366-3XXX T-MOBILE USA, INC. 6529 CLEBURNE TX
2021-12-14 682-366-9XXX T-MOBILE USA, INC. 6529 CLEBURNE TX
2021-12-14 840-210-9XXX T-MOBILE USA, INC. 6529 FONTANA CA
2021-12-13 262-566-2XXX T-MOBILE USA, INC. 6529 ALLENTON WI
2021-12-13 262-566-3XXX T-MOBILE USA, INC. 6529 ALLENTON WI
2021-12-13 279-977-5XXX T-MOBILE USA, INC. 6529 RSVL MAIN CA
2021-12-13 279-977-6XXX T-MOBILE USA, INC. 6529 RSVL MAIN CA
2021-12-13 310-985-7XXX T-MOBILE USA, INC. 6529 SNMN SNMN CA
2021-12-13 424-902-0XXX T-MOBILE USA, INC. 6529 SNMN SNMN CA
2021-12-13 424-902-1XXX T-MOBILE USA, INC. 6529 SNMN SNMN CA
2021-12-13 573-537-0XXX T-MOBILE USA, INC. 6529 ROLLA MO
2021-12-13 573-537-1XXX T-MOBILE USA, INC. 6529 ROLLA MO
2021-12-13 573-537-2XXX T-MOBILE USA, INC. 6529 ROLLA MO
2021-12-13 573-537-3XXX T-MOBILE USA, INC. 6529 ROLLA MO
2021-12-13 573-537-4XXX T-MOBILE USA, INC. 6529 ROLLA MO
2021-12-13 608-895-1XXX T-MOBILE USA, INC. 6529 MADISON WI
2021-12-13 608-895-2XXX T-MOBILE USA, INC. 6529 MADISON WI
2021-12-13 608-895-3XXX T-MOBILE USA, INC. 6529 MADISON WI
2021-12-13 608-895-4XXX T-MOBILE USA, INC. 6529 MADISON WI
2021-12-13 608-895-5XXX T-MOBILE USA, INC. 6529 MADISON WI
2021-12-13 608-895-6XXX T-MOBILE USA, INC. 6529 MADISON WI
2021-12-13 608-895-7XXX T-MOBILE USA, INC. 6529 MADISON WI
2021-12-13 608-895-9XXX T-MOBILE USA, INC. 6529 MADISON WI
2021-12-13 620-469-0XXX T-MOBILE USA, INC. 6529 ARKANSASCY KS
2021-12-13 620-469-6XXX T-MOBILE USA, INC. 6529 ARKANSASCY KS
2021-12-13 620-469-7XXX T-MOBILE USA, INC. 6529 ARKANSASCY KS
2021-12-13 636-525-2XXX T-MOBILE USA, INC. 6529 IMPERIAL MO
2021-12-13 636-525-4XXX T-MOBILE USA, INC. 6529 IMPERIAL MO
2021-12-13 636-633-5XXX T-MOBILE USA, INC. 6529 IMPERIAL MO
2021-12-13 650-602-7XXX T-MOBILE USA, INC. 6529 MT VIEW CA
2021-12-13 650-602-8XXX T-MOBILE USA, INC. 6529 MT VIEW CA
2021-12-13 707-908-2XXX T-MOBILE USA, INC. 6529 BENICIA CA
2021-12-13 707-908-3XXX T-MOBILE USA, INC. 6529 BENICIA CA
2021-12-13 707-908-4XXX T-MOBILE USA, INC. 6529 BENICIA CA
2021-12-13 737-386-0XXX T-MOBILE USA, INC. 6529 LAMPASAS TX
2021-12-13 737-386-1XXX T-MOBILE USA, INC. 6529 LAMPASAS TX
2021-12-13 737-386-2XXX T-MOBILE USA, INC. 6529 LAMPASAS TX
2021-12-10 234-335-7XXX T-MOBILE USA, INC. 6529 LISBON OH
2021-12-10 234-335-8XXX T-MOBILE USA, INC. 6529 LISBON OH
2021-12-10 234-335-9XXX T-MOBILE USA, INC. 6529 LISBON OH
2021-12-10 279-216-3XXX T-MOBILE USA, INC. 6529 SCRM MAIN CA
2021-12-10 279-216-4XXX T-MOBILE USA, INC. 6529 SCRM MAIN CA
2021-12-10 279-216-5XXX T-MOBILE USA, INC. 6529 SCRM MAIN CA
2021-12-10 279-216-6XXX T-MOBILE USA, INC. 6529 SCRM MAIN CA
2021-12-10 279-216-7XXX T-MOBILE USA, INC. 6529 SCRM MAIN CA
2021-12-10 279-216-8XXX T-MOBILE USA, INC. 6529 SCRM MAIN CA

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.