NumberResearch Membership · Data 09/27/2026

Recent thousands-block assignments

68 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/27/2026

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
2013-11-08 650-471-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 LOS ALTOS CA
2013-11-08 669-221-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 LOS GATOS CA
2013-11-08 702-613-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 MESQUITE NV
2013-11-08 714-266-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 BUENA PARK CA
2013-11-08 760-507-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 PALM SPG CA
2013-11-08 806-451-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 LUBBOCK TX
2013-11-08 909-312-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 REDLANDS CA
2013-11-08 916-477-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 WALNUT GRV CA
2013-11-07 808-200-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 HONOLULU HI
2013-11-07 808-260-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 HONOLULU HI
2013-11-07 928-278-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 BULLHEADCY AZ
2013-11-07 928-723-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 YUMA AZ
2013-11-06 216-303-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2013-11-06 216-303-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2013-11-06 216-303-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2013-11-06 216-303-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2013-11-06 216-303-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2013-11-06 216-303-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2013-11-06 216-801-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2013-11-06 408-819-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 CAMPBELL CA
2013-11-06 408-917-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SNJS NORTH CA
2013-11-06 415-324-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 SAUSALITO CA
2013-11-06 509-859-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ELLENSBURG WA
2013-11-06 559-400-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 FRESNO CA
2013-11-06 661-426-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 BKFD MAIN CA
2013-11-06 747-477-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 BRBN BRBN CA
2013-11-06 775-400-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 CARSONCITY NV
2013-11-06 815-345-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 WOODSTOCK IL
2013-11-05 208-982-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 BOISE ID
2013-11-05 253-204-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 AUBURN WA
2013-11-05 314-728-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 ST LOUIS MO
2013-11-05 314-728-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 ST LOUIS MO
2013-11-05 314-728-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 ST LOUIS MO
2013-11-05 314-728-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 ST LOUIS MO
2013-11-05 314-728-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 ST LOUIS MO
2013-11-05 385-888-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 KAYSVILLE UT
2013-11-05 385-888-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 KAYSVILLE UT
2013-11-05 408-650-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 SNJS WEST CA
2013-11-05 425-435-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 BELLEVUE WA
2013-11-05 425-435-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 BELLEVUE WA
2013-11-05 626-899-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 ALHAMBRA CA
2013-11-05 650-285-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 PALO ALTO CA
2013-11-05 760-818-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 BARSTOW CA
2013-11-05 775-419-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 PAHRUMP NV
2013-11-05 925-428-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ANTIOCH CA
2013-11-05 971-312-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 MCMINNVL OR
2013-11-04 385-219-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 PROVO UT
2013-10-31 206-939-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2013-10-31 206-939-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2013-10-31 206-939-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/27/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.