NumberResearch Membership · Data 09/25/2026

Recent thousands-block assignments

69 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/25/2026

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. 69
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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2010-01-19 501-487-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 SYVNHLSHWD AR
2010-01-14 808-979-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 HONOLULU HI
2010-01-12 415-684-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 SNFC CNTRL CA
2010-01-12 501-791-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 LITTLEROCK AR
2010-01-11 435-272-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ST GEORGE UT
2010-01-11 801-837-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 KAYSVILLE UT
2010-01-11 801-839-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 SALT LAKE UT
2010-01-08 405-589-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 CHANDLER OK
2010-01-08 435-200-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 PARK CITY UT
2010-01-08 469-777-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 FRISCO TX
2010-01-08 469-777-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 FRISCO TX
2010-01-08 512-758-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 AUSTIN TX
2010-01-08 702-527-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 LAS VEGAS NV
2010-01-08 918-815-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 BARTLESVL OK
2010-01-07 414-502-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN1 WI
2010-01-07 414-502-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN1 WI
2010-01-07 414-502-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN1 WI
2010-01-06 575-268-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CLOVIS NM
2010-01-05 224-829-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 ALGONQUIN IL
2010-01-05 330-244-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 NO CANTON OH
2010-01-05 630-246-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 BARTLETT IL
2010-01-05 815-756-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 DE KALB IL
2010-01-05 847-660-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2009-12-31 505-234-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 ALBUQURQUE NM
2009-12-31 505-234-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ALBUQURQUE NM
2009-12-31 575-495-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 ALAMOGORDO NM
2009-12-31 626-231-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ARCADIA CA
2009-12-31 925-301-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 ANTIOCH CA
2009-12-30 415-349-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 SNFC JUNPR CA
2009-12-30 559-421-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 FRESNO CA
2009-12-30 619-779-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CHULAVISTA CA
2009-12-30 661-247-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 ARVIN CA
2009-12-30 661-380-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 BKFD MAIN CA
2009-12-30 714-786-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 GARDEN GRV CA
2009-12-30 760-459-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 PALM SPG CA
2009-12-30 760-498-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 BRAWLEY CA
2009-12-30 808-931-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 HONOLULU HI
2009-12-30 818-641-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 BRBN BRBN CA
2009-12-30 915-317-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2009-12-30 916-400-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 SCRM MAIN CA
2009-12-30 925-289-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 WALNUT CRK CA
2009-12-29 480-352-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 PHOENIX AZ
2009-12-29 480-352-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 PHOENIX AZ
2009-12-29 480-352-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 PHOENIX AZ
2009-12-29 480-809-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 PHOENIX AZ
2009-12-28 208-515-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 BOISE ID
2009-12-28 405-212-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 OKLA CITY OK
2009-12-23 920-264-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 GREEN BAY WI
2009-12-23 920-287-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 SHEBOYGAN WI
2009-12-23 920-287-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 SHEBOYGAN WI

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/25/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.