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
2019-09-25 213-732-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 LSAN DA 12 CA
2019-09-25 385-326-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 OGDEN UT
2019-09-25 385-326-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 OGDEN UT
2019-09-25 385-326-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 OGDEN UT
2019-09-25 424-428-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 SNMN MRVS CA
2019-09-25 510-434-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 OKLD FRTVL CA
2019-09-25 510-988-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 OKLD FRTVL CA
2019-09-25 562-576-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 PICORIVERA CA
2019-09-25 725-227-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 LAS VEGAS NV
2019-09-25 725-227-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 LAS VEGAS NV
2019-09-23 682-297-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ARLINGTON TX
2019-09-19 307-205-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 LINGLE WY
2019-09-19 307-205-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 LINGLE WY
2019-09-19 307-401-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 TORRINGTON WY
2019-09-19 307-401-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 TORRINGTON WY
2019-09-19 307-401-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 TORRINGTON WY
2019-09-19 307-409-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 LA GRANGE WY
2019-09-19 307-409-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 LA GRANGE WY
2019-09-19 307-409-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 LA GRANGE WY
2019-09-18 430-252-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 SULPHURSPG TX
2019-09-18 430-333-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 CORSICANA TX
2019-09-18 430-333-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CORSICANA TX
2019-09-18 737-500-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 BASTROP TX
2019-09-18 737-500-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 BASTROP TX
2019-09-18 737-500-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 BASTROP TX
2019-09-18 737-500-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 BASTROP TX
2019-09-09 940-331-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 DENTON TX
2019-09-05 424-435-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 TORRANCE CA
2019-09-05 442-306-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 INDIO CA
2019-09-05 509-771-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 MOSES LAKE WA
2019-09-05 541-300-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 THE DALLES OR
2019-09-05 925-794-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 MORAGA CA
2019-09-03 425-439-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 BOTHELL WA
2019-08-30 209-319-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 TRACY CA
2019-08-30 424-409-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 REDONDO CA
2019-08-30 509-595-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 PULLMAN WA
2019-08-30 530-630-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CHICO CA
2019-08-30 626-292-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ALHAMBRA CA
2019-08-30 626-292-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ALHAMBRA CA
2019-08-30 626-342-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 ALHAMBRA CA
2019-08-30 626-418-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ALHAMBRA CA
2019-08-30 626-766-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 ALHAMBRA CA
2019-08-30 628-268-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 SNFC CNTRL CA
2019-08-30 628-268-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 SNFC CNTRL CA
2019-08-30 628-268-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 SNFC CNTRL CA
2019-08-30 628-268-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 SNFC CNTRL CA
2019-08-30 628-268-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SNFC CNTRL CA
2019-08-30 805-803-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 SANTAMARIA CA
2019-08-30 805-803-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 SANTAMARIA CA
2019-08-30 858-888-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 LA JOLLA 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.