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
2014-01-23 331-218-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 WHEATON IL
2014-01-23 469-773-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 WAXAHACHIE TX
2014-01-23 469-773-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 WAXAHACHIE TX
2014-01-23 510-365-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 OKLD BKLY CA
2014-01-23 626-986-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 LA PUENTE CA
2014-01-23 916-385-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ELK GROVE CA
2014-01-23 949-245-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 CAPITRNVLY CA
2014-01-22 385-626-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 OGDEN UT
2014-01-22 575-495-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ALAMOGORDO NM
2014-01-22 928-278-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 BULLHEADCY AZ
2014-01-21 209-276-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ATWATER CA
2014-01-21 415-465-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SAUSALITO CA
2014-01-21 442-224-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 VISTA CA
2014-01-21 509-919-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 SPOKANE WA
2014-01-21 669-225-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 SNJS WEST CA
2014-01-21 714-406-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 YORBALINDA CA
2014-01-21 808-670-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 HONOLULU HI
2014-01-21 808-670-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 HONOLULU HI
2014-01-21 858-695-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 SNDG MRMS CA
2014-01-21 909-360-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 UPLAND CA
2014-01-21 916-398-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 WALNUT GRV CA
2014-01-21 925-475-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 PLEASANTON CA
2014-01-21 925-568-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 SUNOL CA
2014-01-21 949-247-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 IRVINE CA
2014-01-21 951-350-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 HEMT SNJC CA
2014-01-21 951-380-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 HEMT HEMT CA
2014-01-21 951-386-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 WOODCREST CA
2014-01-17 360-813-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 BREMERTON WA
2014-01-17 425-324-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 BELLEVUE WA
2014-01-17 619-836-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 CHULAVISTA CA
2014-01-17 619-836-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 CHULAVISTA CA
2014-01-17 650-944-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 MT VIEW CA
2014-01-15 808-670-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 HONOLULU HI
2014-01-14 916-571-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 SCRM NORTH CA
2014-01-14 971-407-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 PORTLAND OR
2014-01-13 971-706-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 MCMINNVL OR
2014-01-09 209-292-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 STOCKTON CA
2014-01-09 253-391-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 AUBURN WA
2014-01-09 323-714-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 MONTEBELLO CA
2014-01-09 510-365-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 OKLD BKLY CA
2014-01-09 714-763-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 CYPRESS CA
2014-01-08 512-545-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 BASTROP TX
2014-01-08 512-545-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 BASTROP TX
2014-01-08 512-545-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 BASTROP TX
2014-01-08 512-545-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 BASTROP TX
2014-01-07 325-939-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 SAN ANGELO TX
2014-01-07 325-939-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 SAN ANGELO TX
2014-01-07 408-819-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 CAMPBELL CA
2014-01-07 512-986-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 LEANDER TX
2014-01-07 512-986-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 LEANDER TX

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.