NumberResearch Membership · Data 09/23/2026

Recent thousands-block assignments

59 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/23/2026

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. 59
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
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2007-12-14 773-543-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 CHICGOZN04 IL
2007-12-14 773-543-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 CHICGOZN04 IL
2007-12-13 304-910-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 BLUEFIELD WV
2007-12-13 360-306-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 WHATCOMCTY WA
2007-12-13 714-867-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 GARDEN GRV CA
2007-12-13 714-867-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 GARDEN GRV CA
2007-12-13 719-355-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 COLORDOSPG CO
2007-12-13 815-219-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 CRYSTAL LK IL
2007-12-13 818-862-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 LACRSCENTA CA
2007-12-12 254-813-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 KILLEEN TX
2007-12-12 405-406-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 OKLA CITY OK
2007-12-12 405-979-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 OKLA CITY OK
2007-12-12 630-974-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 HINSDALE IL
2007-12-12 773-290-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 CHICGOZN02 IL
2007-12-12 775-682-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 RENO NV
2007-12-12 918-938-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2007-12-11 414-306-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN3 WI
2007-12-11 414-334-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN5 WI
2007-12-11 414-737-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN5 WI
2007-12-10 415-525-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 SNFC CNTRL CA
2007-12-10 415-525-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 SNFC CNTRL CA
2007-12-10 415-525-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 SNFC CNTRL CA
2007-12-10 415-525-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SNFC CNTRL CA
2007-12-10 760-705-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 ESCONDIDO CA
2007-12-10 806-317-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 LUBBOCK TX
2007-12-07 216-456-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2007-12-07 216-854-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2007-12-07 216-855-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2007-12-07 216-855-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2007-12-07 216-855-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2007-12-07 216-855-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2007-12-07 408-364-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 CAMPBELL CA
2007-12-07 424-210-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 SAN PEDRO CA
2007-12-07 424-264-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 SAN PEDRO CA
2007-12-07 424-264-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 SAN PEDRO CA
2007-12-07 562-338-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 ALAMITOS CA
2007-12-07 630-999-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SUGARGROVE IL
2007-12-07 661-247-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ARVIN CA
2007-12-07 712-631-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SHELDON IA
2007-12-07 805-904-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ARROYOGRND CA
2007-12-07 815-579-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 LA SALLE IL
2007-12-06 262-865-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 RACINE WI
2007-12-06 432-517-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 BIG SPRING TX
2007-12-06 432-847-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 SEMINOLE TX
2007-12-06 512-650-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 AUSTIN TX
2007-12-05 509-304-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 CLE ELUM WA
2007-12-05 541-663-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 LA GRANDE OR
2007-12-04 262-716-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 BURLINGTON WI
2007-12-04 262-716-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 BURLINGTON WI
2007-12-04 580-230-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 DURANT OK

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/23/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.