NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

66 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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. 66
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
2006-12-05 818-336-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 SNFN SNFN CA
2006-12-05 970-930-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 GLENWD SPG CO
2006-12-04 620-262-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 WINFIELD KS
2006-12-04 773-349-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 CHICGOZN08 IL
2006-12-04 773-349-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 CHICGOZN08 IL
2006-12-04 773-627-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 CHICGOZN08 IL
2006-12-04 773-634-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 CHICGOZN04 IL
2006-12-04 806-518-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 PLAINVIEW TX
2006-12-04 806-831-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 LUBBOCK TX
2006-12-04 808-954-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 HONOLULU HI
2006-12-04 808-954-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 HONOLULU HI
2006-12-04 808-954-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 HONOLULU HI
2006-12-01 323-354-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 LSAN DA 05 CA
2006-12-01 323-419-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 LSAN DA 11 CA
2006-12-01 323-419-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 LSAN DA 11 CA
2006-12-01 424-785-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CMTN CMTN CA
2006-12-01 425-286-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 BOTHELL WA
2006-12-01 425-791-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 EVERETT WA
2006-12-01 425-791-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 EVERETT WA
2006-12-01 425-791-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 EVERETT WA
2006-12-01 425-791-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 EVERETT WA
2006-12-01 541-212-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 ONTARIO OR
2006-12-01 562-316-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 LAKEWOOD CA
2006-12-01 562-328-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 WHITTIER CA
2006-12-01 714-548-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 WESTMINSTR CA
2006-12-01 714-548-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 WESTMINSTR CA
2006-12-01 714-854-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 PLACENTIA CA
2006-12-01 760-628-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 VICTORVL CA
2006-12-01 760-972-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 INDIO CA
2006-12-01 773-681-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 CHICGOZN02 IL
2006-12-01 916-388-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 SCRM MAIN CA
2006-12-01 951-473-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 MURRIETA CA
2006-11-30 224-587-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2006-11-30 224-587-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2006-11-30 224-587-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2006-11-30 224-587-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2006-11-30 224-587-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2006-11-30 513-410-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 CINCINNATI OH
2006-11-30 513-410-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 CINCINNATI OH
2006-11-30 513-410-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 CINCINNATI OH
2006-11-30 513-410-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 CINCINNATI OH
2006-11-30 513-410-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 CINCINNATI OH
2006-11-30 563-676-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 DAVENPORT IA
2006-11-30 775-671-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 CARSONCITY NV
2006-11-29 815-716-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 STERLING IL
2006-11-28 702-481-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 LAS VEGAS NV
2006-11-28 702-481-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 LAS VEGAS NV
2006-11-28 702-481-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 LAS VEGAS NV
2006-11-28 702-485-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 LAS VEGAS NV
2006-11-28 702-485-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 LAS VEGAS NV

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.