NumberResearch Membership · Data 09/21/2026

Recent thousands-block assignments

59 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026

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
2007-04-03 214-603-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 GRANDPRARI TX
2007-04-03 217-819-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 CHAMPAURBN IL
2007-04-03 217-819-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 CHAMPAURBN IL
2007-04-03 469-274-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 GRANDPRARI TX
2007-04-03 469-274-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 GRANDPRARI TX
2007-04-03 469-274-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 GRANDPRARI TX
2007-04-03 702-420-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 LAUGHLIN NV
2007-04-03 714-471-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ANAHEIM CA
2007-04-03 775-671-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 CARSONCITY NV
2007-04-02 216-357-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2007-04-02 520-470-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 NOGALES AZ
2007-03-30 253-306-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 TACOMA WA
2007-03-30 408-334-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 SNJS WEST CA
2007-03-30 708-262-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 TINLEYPARK IL
2007-03-30 708-262-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 TINLEYPARK IL
2007-03-30 708-262-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 TINLEYPARK IL
2007-03-30 708-262-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 TINLEYPARK IL
2007-03-30 858-436-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 DEL MAR CA
2007-03-29 206-631-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2007-03-29 626-588-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ALHAMBRA CA
2007-03-29 630-808-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 ELMHURST IL
2007-03-29 630-808-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 ELMHURST IL
2007-03-29 630-808-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 ELMHURST IL
2007-03-29 630-808-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 ELMHURST IL
2007-03-29 630-808-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ELMHURST IL
2007-03-29 630-808-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 ELMHURST IL
2007-03-29 636-368-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 CHESTERFLD MO
2007-03-29 636-368-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 CHESTERFLD MO
2007-03-29 661-476-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 SNCA NHCS CA
2007-03-29 808-589-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 HONOLULU HI
2007-03-29 818-392-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 NO HOLLYWD CA
2007-03-29 916-753-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 ELK GROVE CA
2007-03-29 951-591-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 PERRIS CA
2007-03-28 208-585-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 BOISE ID
2007-03-28 309-948-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ROCKISLAND IL
2007-03-28 309-948-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ROCKISLAND IL
2007-03-28 319-471-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 IOWA CITY IA
2007-03-28 319-471-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 IOWA CITY IA
2007-03-28 325-340-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 SAN ANGELO TX
2007-03-28 325-340-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 SAN ANGELO TX
2007-03-28 330-581-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 ALLIANCE OH
2007-03-28 469-338-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 ROCKWALL TX
2007-03-28 641-903-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 MASON CITY IA
2007-03-28 641-903-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 MASON CITY IA
2007-03-27 440-317-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 BEDFORD OH
2007-03-27 512-216-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SAN MARCOS TX
2007-03-27 541-678-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 BEND OR
2007-03-27 562-264-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 LONG BEACH CA
2007-03-27 562-356-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 NORWALK CA
2007-03-27 719-571-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 COLORDOSPG CO

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.