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
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Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2019-07-29 213-461-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 LSAN DA 09 CA
2019-07-29 323-418-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 LSAN DA 09 CA
2019-07-29 323-529-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 LSAN DA 11 CA
2019-07-29 323-639-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 LSAN DA 11 CA
2019-07-29 323-641-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 LSAN DA 11 CA
2019-07-29 323-678-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 LSAN DA 09 CA
2019-07-29 323-754-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 LSAN DA 09 CA
2019-07-29 323-755-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 LSAN DA 09 CA
2019-07-29 323-776-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 LSAN DA 09 CA
2019-07-29 424-440-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 W ANGELES CA
2019-07-29 424-440-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 W ANGELES CA
2019-07-29 626-517-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 PSDN PSDN CA
2019-07-29 626-517-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 PSDN PSDN CA
2019-07-29 626-517-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 PSDN PSDN CA
2019-07-29 775-375-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 WINNEMUCCA NV
2019-07-29 805-295-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 PISMOBEACH CA
2019-07-29 909-704-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 ONTARIO CA
2019-07-29 909-704-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ONTARIO CA
2019-07-29 909-716-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 POMONA CA
2019-07-29 909-716-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 POMONA CA
2019-07-29 928-575-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 PARKER AZ
2019-07-29 971-757-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 ST HELENS OR
2019-07-26 970-909-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 GREELEY CO
2019-07-24 626-567-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 PSDN PSDN CA
2019-07-16 385-332-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 KAYSVILLE UT
2019-07-16 469-558-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 ENNIS TX
2019-07-16 469-558-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 ENNIS TX
2019-07-16 608-927-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 BELOIT WI
2019-07-16 909-780-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 MARSHALL CA
2019-07-16 909-780-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 MARSHALL CA
2019-07-15 213-732-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 LSAN DA 12 CA
2019-07-15 213-732-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 LSAN DA 12 CA
2019-07-15 279-800-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ELK GROVE CA
2019-07-15 323-796-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 LSAN DA 05 CA
2019-07-15 469-545-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 MCKINNEY TX
2019-07-15 469-545-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 MCKINNEY TX
2019-07-15 469-545-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 MCKINNEY TX
2019-07-15 469-545-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 MCKINNEY TX
2019-07-15 469-545-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 MCKINNEY TX
2019-07-15 469-545-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 MCKINNEY TX
2019-07-15 510-998-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ELSBR-PINL CA
2019-07-15 562-503-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 NORWALK CA
2019-07-15 669-268-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 CAMPBELL CA
2019-07-15 669-295-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 SNJS WEST CA
2019-07-15 669-295-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SNJS WEST CA
2019-07-12 213-577-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 LSAN DA 04 CA
2019-07-12 279-321-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 FOLSOM CA
2019-07-12 279-900-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 RSVL MAIN CA
2019-07-12 360-809-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 PT ANGELES WA
2019-07-12 424-430-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 CMTN GRDN CA

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.