NumberResearch Membership · Data 09/23/2026

Recent thousands-block assignments

59 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/23/2026

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
2007-07-17 970-355-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 GLENWD SPG CO
2007-07-17 970-518-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 GREELEY CO
2007-07-17 970-518-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 GREELEY CO
2007-07-17 970-518-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 GREELEY CO
2007-07-17 970-534-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 GREELEY CO
2007-07-16 213-568-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 LSAN DA 10 CA
2007-07-16 253-282-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 TACOMA WA
2007-07-16 253-282-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 TACOMA WA
2007-07-16 253-282-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 TACOMA WA
2007-07-16 253-886-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 AUBURN WA
2007-07-16 319-429-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 WATERLOO IA
2007-07-16 323-601-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 LSAN DA 12 CA
2007-07-16 323-944-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 LSAN DA 13 CA
2007-07-16 360-356-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 VANCOUVER WA
2007-07-16 408-466-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 CAMPBELL CA
2007-07-16 408-598-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 SUNNYVALE CA
2007-07-16 425-289-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 BELLEVUE WA
2007-07-16 469-432-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 GRANDPRARI TX
2007-07-16 469-432-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 GRANDPRARI TX
2007-07-16 469-432-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 GRANDPRARI TX
2007-07-16 469-432-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 GRANDPRARI TX
2007-07-16 469-432-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 GRANDPRARI TX
2007-07-16 469-432-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 GRANDPRARI TX
2007-07-16 469-432-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 GRANDPRARI TX
2007-07-16 469-432-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 GRANDPRARI TX
2007-07-16 469-432-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 GRANDPRARI TX
2007-07-16 469-432-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 GRANDPRARI TX
2007-07-16 510-314-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 HAYWARD CA
2007-07-16 510-493-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 FRNK MAIN CA
2007-07-16 510-859-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 OKLD BKLY CA
2007-07-16 512-909-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 AUSTIN TX
2007-07-16 512-909-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 AUSTIN TX
2007-07-16 512-909-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 AUSTIN TX
2007-07-16 512-909-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 AUSTIN TX
2007-07-16 512-909-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 AUSTIN TX
2007-07-16 619-534-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 SNDG SNDG CA
2007-07-16 619-609-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 LA MESA CA
2007-07-16 626-283-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ALHAMBRA CA
2007-07-16 626-283-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ALHAMBRA CA
2007-07-16 626-409-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 EL MONTE CA
2007-07-16 626-623-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 ARCADIA CA
2007-07-16 626-623-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 ARCADIA CA
2007-07-16 661-476-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 SNCA NHCS CA
2007-07-16 707-205-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 BENICIA CA
2007-07-16 707-514-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 VACAVILLE CA
2007-07-16 714-589-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 GARDEN GRV CA
2007-07-16 714-829-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 ANAHEIM CA
2007-07-16 714-829-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ANAHEIM CA
2007-07-16 714-829-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 ANAHEIM CA
2007-07-16 714-829-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ANAHEIM CA

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/23/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.