NumberResearch Membership · Data 09/24/2026

Recent thousands-block assignments

70 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/24/2026

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. 70
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
2020-08-25 619-776-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 LA MESA CA
2020-08-25 661-655-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 ARVIN CA
2020-08-25 661-655-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 ARVIN CA
2020-08-25 707-920-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 FRFLD-SUIS CA
2020-08-25 737-733-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 BASTROP TX
2020-08-25 737-733-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 BASTROP TX
2020-08-25 737-733-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 BASTROP TX
2020-08-25 737-733-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 BASTROP TX
2020-08-25 737-733-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 BASTROP TX
2020-08-25 737-733-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 BASTROP TX
2020-08-25 737-733-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 BASTROP TX
2020-08-25 737-733-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 BASTROP TX
2020-08-25 779-241-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 MORRIS IL
2020-08-25 779-241-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 MORRIS IL
2020-08-25 779-241-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 MORRIS IL
2020-08-25 805-519-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 ARROYOGRND CA
2020-08-25 820-758-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 SANBARBARA CA
2020-08-25 820-758-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SANBARBARA CA
2020-08-25 916-510-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 FOLSOM CA
2020-08-25 925-230-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 DUBLN-SNRM CA
2020-08-25 925-359-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 BSHP RNCH CA
2020-08-25 925-877-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 ANTIOCH CA
2020-08-25 925-877-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ANTIOCH CA
2020-08-25 925-877-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 ANTIOCH CA
2020-08-25 951-933-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 PERRIS CA
2020-08-24 262-266-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 OCONOMOWOC WI
2020-08-24 262-266-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 OCONOMOWOC WI
2020-08-24 406-506-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 BILLINGS MT
2020-08-24 573-512-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 FTLENARDWD MO
2020-08-21 209-692-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SNRA MAIN CA
2020-08-21 539-218-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 MUSKOGEE OK
2020-08-21 539-218-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 MUSKOGEE OK
2020-08-21 539-218-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 MUSKOGEE OK
2020-08-21 909-845-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CALIMESA CA
2020-08-20 360-682-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 OAK HARBOR WA
2020-08-20 479-579-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 BENTONVL AR
2020-08-20 479-579-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 BENTONVL AR
2020-08-20 479-579-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 BENTONVL AR
2020-08-20 479-579-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 BENTONVL AR
2020-08-20 510-729-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 OKLD TRNID CA
2020-08-20 520-523-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SIERRAVIST AZ
2020-08-20 530-651-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 PLVL WEST CA
2020-08-20 530-922-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 OROVILLE CA
2020-08-20 636-409-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 OFALLON MO
2020-08-20 636-849-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 OFALLON MO
2020-08-20 916-699-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 RSVL MAIN CA
2020-08-20 925-388-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 MORAGA CA
2020-08-20 951-528-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 TEMECULA CA
2020-08-20 951-946-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 HEMT SNJC CA
2020-08-19 805-298-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 MOORPARK CA

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/24/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.