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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedBlockAssigneeOCNRate centerState
2005-09-13 775-412-8XXX T-MOBILE USA, INC. 6529 RENO NV
2005-09-12 216-201-1XXX T-MOBILE USA, INC. 6529 CLEVELAND OH
2005-09-12 216-799-5XXX T-MOBILE USA, INC. 6529 CLEVELAND OH
2005-09-12 216-799-6XXX T-MOBILE USA, INC. 6529 CLEVELAND OH
2005-09-12 216-799-7XXX T-MOBILE USA, INC. 6529 CLEVELAND OH
2005-09-12 216-799-8XXX T-MOBILE USA, INC. 6529 CLEVELAND OH
2005-09-12 216-799-9XXX T-MOBILE USA, INC. 6529 CLEVELAND OH
2005-09-12 254-214-8XXX T-MOBILE USA, INC. 6529 WACO TX
2005-09-12 520-223-5XXX T-MOBILE USA, INC. 6529 NOGALES AZ
2005-09-12 562-331-7XXX T-MOBILE USA, INC. 6529 ALAMITOS CA
2005-09-12 714-383-4XXX T-MOBILE USA, INC. 6529 GARDEN GRV CA
2005-09-12 714-383-5XXX T-MOBILE USA, INC. 6529 GARDEN GRV CA
2005-09-12 814-403-1XXX T-MOBILE USA, INC. 6529 ERIE PA
2005-09-12 940-228-8XXX T-MOBILE USA, INC. 6529 WICHITAFLS TX
2005-09-09 432-755-9XXX T-MOBILE USA, INC. 6529 PECOS TX
2005-09-08 219-577-5XXX T-MOBILE USA, INC. 6529 CROWNPOINT IN
2005-09-08 224-848-2XXX T-MOBILE USA, INC. 6529 BARRINGTON IL
2005-09-08 512-378-0XXX T-MOBILE USA, INC. 6529 AUSTIN TX
2005-09-08 541-399-1XXX T-MOBILE USA, INC. 6529 HOOD RIVER OR
2005-09-08 630-864-9XXX T-MOBILE USA, INC. 6529 NAPERVILLE IL
2005-09-08 630-903-1XXX T-MOBILE USA, INC. 6529 ELMHURST IL
2005-09-08 714-837-0XXX T-MOBILE USA, INC. 6529 WESTMINSTR CA
2005-09-08 714-837-1XXX T-MOBILE USA, INC. 6529 WESTMINSTR CA
2005-09-08 714-837-2XXX T-MOBILE USA, INC. 6529 WESTMINSTR CA
2005-09-08 714-837-3XXX T-MOBILE USA, INC. 6529 WESTMINSTR CA
2005-09-08 714-837-4XXX T-MOBILE USA, INC. 6529 WESTMINSTR CA
2005-09-08 714-837-5XXX T-MOBILE USA, INC. 6529 WESTMINSTR CA
2005-09-08 714-837-9XXX T-MOBILE USA, INC. 6529 WESTMINSTR CA
2005-09-08 773-603-4XXX T-MOBILE USA, INC. 6529 CHICGOZN10 IL
2005-09-08 773-603-5XXX T-MOBILE USA, INC. 6529 CHICGOZN10 IL
2005-09-08 773-603-6XXX T-MOBILE USA, INC. 6529 CHICGOZN10 IL
2005-09-08 773-603-7XXX T-MOBILE USA, INC. 6529 CHICGOZN10 IL
2005-09-08 773-603-8XXX T-MOBILE USA, INC. 6529 CHICGOZN10 IL
2005-09-08 773-656-4XXX T-MOBILE USA, INC. 6529 CHICGOZN10 IL
2005-09-08 773-656-5XXX T-MOBILE USA, INC. 6529 CHICGOZN10 IL
2005-09-08 773-656-6XXX T-MOBILE USA, INC. 6529 CHICGOZN10 IL
2005-09-08 773-656-7XXX T-MOBILE USA, INC. 6529 CHICGOZN10 IL
2005-09-08 773-656-8XXX T-MOBILE USA, INC. 6529 CHICGOZN10 IL
2005-09-08 805-418-0XXX T-MOBILE USA, INC. 6529 THOUSAOAKS CA
2005-09-08 847-305-0XXX T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2005-09-08 951-345-2XXX T-MOBILE USA, INC. 6529 PERRIS CA
2005-09-07 253-212-8XXX T-MOBILE USA, INC. 6529 TACOMA WA
2005-09-07 253-267-2XXX T-MOBILE USA, INC. 6529 TACOMA WA
2005-09-07 253-680-9XXX T-MOBILE USA, INC. 6529 TACOMA WA
2005-09-07 314-835-7XXX T-MOBILE USA, INC. 6529 KIRKWOOD MO
2005-09-07 415-632-6XXX T-MOBILE USA, INC. 6529 SNFC CNTRL CA
2005-09-07 415-632-7XXX T-MOBILE USA, INC. 6529 SNFC CNTRL CA
2005-09-07 415-645-3XXX T-MOBILE USA, INC. 6529 SNFC CNTRL CA
2005-09-07 415-646-5XXX T-MOBILE USA, INC. 6529 SNFC CNTRL CA
2005-09-07 510-259-8XXX T-MOBILE USA, INC. 6529 HAYWARD 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.