NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

76 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. 76
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
2022-12-21 682-368-7XXX T-MOBILE USA, INC. 6529 WEATHERFD TX
2022-12-21 682-368-8XXX T-MOBILE USA, INC. 6529 WEATHERFD TX
2022-12-21 682-393-6XXX T-MOBILE USA, INC. 6529 WEATHERFD TX
2022-12-21 682-393-7XXX T-MOBILE USA, INC. 6529 WEATHERFD TX
2022-12-21 682-532-0XXX T-MOBILE USA, INC. 6529 WEATHERFD TX
2022-12-16 464-333-5XXX T-MOBILE USA, INC. 6529 HARVEY IL
2022-12-16 464-333-6XXX T-MOBILE USA, INC. 6529 HARVEY IL
2022-12-16 464-333-8XXX T-MOBILE USA, INC. 6529 HARVEY IL
2022-12-16 815-763-2XXX T-MOBILE USA, INC. 6529 JOLIET IL
2022-12-16 815-763-3XXX T-MOBILE USA, INC. 6529 JOLIET IL
2022-12-15 539-937-9XXX T-MOBILE USA, INC. 6529 VINITA OK
2022-12-15 573-902-8XXX T-MOBILE USA, INC. 6529 PERRYVILLE MO
2022-12-15 573-902-9XXX T-MOBILE USA, INC. 6529 PERRYVILLE MO
2022-12-13 618-873-1XXX T-MOBILE USA, INC. 6529 BELLEVILLE IL
2022-12-13 618-873-2XXX T-MOBILE USA, INC. 6529 BELLEVILLE IL
2022-12-13 870-902-8XXX T-MOBILE USA, INC. 6529 BLYTHEVL AR
2022-12-12 564-212-1XXX T-MOBILE USA, INC. 6529 ABERDEEN WA
2022-12-12 564-228-9XXX T-MOBILE USA, INC. 6529 ABERDEEN WA
2022-12-09 432-584-8XXX T-MOBILE USA, INC. 6529 SEMINOLE TX
2022-12-09 432-584-9XXX T-MOBILE USA, INC. 6529 SEMINOLE TX
2022-12-08 406-410-6XXX T-MOBILE USA, INC. 6529 HELENA MT
2022-12-08 406-410-7XXX T-MOBILE USA, INC. 6529 HELENA MT
2022-12-08 513-610-5XXX T-MOBILE USA, INC. 6529 SEVEN MILE OH
2022-12-08 513-610-6XXX T-MOBILE USA, INC. 6529 SEVEN MILE OH
2022-12-08 513-610-7XXX T-MOBILE USA, INC. 6529 SEVEN MILE OH
2022-12-08 513-610-8XXX T-MOBILE USA, INC. 6529 SEVEN MILE OH
2022-12-08 513-610-9XXX T-MOBILE USA, INC. 6529 SEVEN MILE OH
2022-12-08 608-814-7XXX T-MOBILE USA, INC. 6529 BELOIT WI
2022-12-08 608-814-8XXX T-MOBILE USA, INC. 6529 BELOIT WI
2022-12-08 608-814-9XXX T-MOBILE USA, INC. 6529 BELOIT WI
2022-12-08 608-815-9XXX T-MOBILE USA, INC. 6529 JANESVILLE WI
2022-12-08 618-905-7XXX T-MOBILE USA, INC. 6529 LEBANON IL
2022-12-08 903-625-1XXX T-MOBILE USA, INC. 6529 JACKSONVL TX
2022-12-08 945-271-2XXX T-MOBILE USA, INC. 6529 WAXAHACHIE TX
2022-12-07 209-801-4XXX T-MOBILE USA, INC. 6529 JAMESTOWN CA
2022-12-07 307-855-9XXX T-MOBILE USA, INC. 6529 RIVERTON WY
2022-12-07 385-507-0XXX T-MOBILE USA, INC. 6529 SALT LAKE UT
2022-12-07 385-507-1XXX T-MOBILE USA, INC. 6529 SALT LAKE UT
2022-12-07 385-507-2XXX T-MOBILE USA, INC. 6529 SALT LAKE UT
2022-12-07 385-507-3XXX T-MOBILE USA, INC. 6529 SALT LAKE UT
2022-12-07 385-507-4XXX T-MOBILE USA, INC. 6529 SALT LAKE UT
2022-12-07 385-507-5XXX T-MOBILE USA, INC. 6529 SALT LAKE UT
2022-12-07 385-507-6XXX T-MOBILE USA, INC. 6529 SALT LAKE UT
2022-12-07 385-508-9XXX T-MOBILE USA, INC. 6529 SALT LAKE UT
2022-12-07 458-901-8XXX T-MOBILE USA, INC. 6529 COOS BAY OR
2022-12-07 808-647-5XXX T-MOBILE USA, INC. 6529 LIHUE HI
2022-12-07 808-647-6XXX T-MOBILE USA, INC. 6529 LIHUE HI
2022-12-02 567-463-1XXX T-MOBILE USA, INC. 6529 ASHLAND OH
2022-12-02 567-463-2XXX T-MOBILE USA, INC. 6529 ASHLAND OH
2022-12-02 567-463-3XXX T-MOBILE USA, INC. 6529 ASHLAND OH

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.