NumberResearch Membership · Data 09/26/2026

Recent thousands-block assignments

68 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/26/2026

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. 68
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
2012-07-16 469-316-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 GRANDPRARI TX
2012-07-16 469-316-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 GRANDPRARI TX
2012-07-16 469-316-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 GRANDPRARI TX
2012-07-16 469-316-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 GRANDPRARI TX
2012-07-16 469-316-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 GRANDPRARI TX
2012-07-16 469-316-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 GRANDPRARI TX
2012-07-16 469-316-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 GRANDPRARI TX
2012-07-16 469-316-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 GRANDPRARI TX
2012-07-13 323-477-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 MONTEBELLO CA
2012-07-13 469-305-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 FRISCO TX
2012-07-13 469-305-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 FRISCO TX
2012-07-13 469-305-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 FRISCO TX
2012-07-13 831-288-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 WATSONVL CA
2012-07-13 831-319-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 WATSONVL CA
2012-07-11 469-315-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 GRANDPRARI TX
2012-07-11 469-315-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 GRANDPRARI TX
2012-07-11 469-315-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 GRANDPRARI TX
2012-07-11 469-315-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 GRANDPRARI TX
2012-07-11 469-315-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 GRANDPRARI TX
2012-07-11 626-428-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 AZUSA CA
2012-07-11 661-748-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 BKFD MAIN CA
2012-07-11 808-364-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 HONOLULU HI
2012-07-11 808-364-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 HONOLULU HI
2012-07-11 808-364-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 HONOLULU HI
2012-07-11 915-730-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2012-07-11 915-730-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2012-07-11 915-730-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2012-07-11 915-730-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2012-07-11 915-730-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2012-07-09 219-213-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 CROWNPOINT IN
2012-07-09 323-427-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 MONTEBELLO CA
2012-07-09 602-422-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 PHOENIX AZ
2012-07-05 253-888-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 TACOMA WA
2012-07-05 360-720-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 OAK HARBOR WA
2012-07-05 425-789-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 EVERETT WA
2012-07-05 425-789-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 EVERETT WA
2012-07-05 509-289-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 EPHRATA WA
2012-07-02 435-919-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 BRIGHAM CY UT
2012-07-02 509-424-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 YAKIMA WA
2012-07-02 626-328-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ALHAMBRA CA
2012-07-02 626-328-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ALHAMBRA CA
2012-07-02 626-328-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ALHAMBRA CA
2012-07-02 760-429-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 OCSD OCSD CA
2012-07-02 760-879-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 EL CENTRO CA
2012-07-02 928-514-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 BULLHEADCY AZ
2012-07-02 928-514-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 BULLHEADCY AZ
2012-06-29 636-393-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 PACIFIC MO
2012-06-28 214-400-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 MIDLOTHIAN TX
2012-06-27 206-209-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2012-06-27 253-397-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 AUBURN WA

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/26/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.