NumberResearch Membership · Data 09/24/2026

Recent thousands-block assignments

70 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/24/2026

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. 70
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
2020-10-08 360-206-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 CENTRALIA WA
2020-10-08 385-358-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 KAYSVILLE UT
2020-10-08 385-358-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 KAYSVILLE UT
2020-10-08 385-358-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 KAYSVILLE UT
2020-10-08 385-358-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 KAYSVILLE UT
2020-10-08 805-792-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 ATASCADERO CA
2020-10-08 805-792-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ATASCADERO CA
2020-10-08 909-805-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 MENTONE CA
2020-10-08 909-808-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 FONTANA CA
2020-10-08 909-808-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 FONTANA CA
2020-10-08 909-897-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CRESTLINE CA
2020-10-08 925-352-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 PLEASANTON CA
2020-10-08 925-352-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 PLEASANTON CA
2020-10-06 208-992-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 BOISE ID
2020-10-06 208-992-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 BOISE ID
2020-10-05 970-694-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 FT COLLINS CO
2020-10-05 970-730-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 GRAND JCT CO
2020-10-02 224-363-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ELGIN IL
2020-10-02 224-363-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ELGIN IL
2020-10-02 234-286-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 WOOSTER OH
2020-10-02 234-286-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 WOOSTER OH
2020-10-02 262-267-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 DELAVAN WI
2020-10-02 405-981-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 BETHANY OK
2020-10-02 405-981-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 BETHANY OK
2020-10-02 405-981-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 BETHANY OK
2020-10-02 405-981-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 BETHANY OK
2020-10-02 405-981-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 BETHANY OK
2020-10-02 580-360-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 LAWTON OK
2020-10-01 562-844-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ALAMITOS CA
2020-10-01 562-844-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ALAMITOS CA
2020-10-01 951-556-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ARLINGTON CA
2020-10-01 951-556-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ARLINGTON CA
2020-10-01 951-556-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ARLINGTON CA
2020-09-30 562-667-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 NORWALK CA
2020-09-30 650-977-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 PACIFICA CA
2020-09-30 657-966-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 SANTA ANA CA
2020-09-30 657-966-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SANTA ANA CA
2020-09-30 661-584-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 MOJAVE CA
2020-09-30 858-977-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 DEL MAR CA
2020-09-30 925-488-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 WALNUT CRK CA
2020-09-29 405-491-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 BETHANY OK
2020-09-29 405-728-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 BETHANY OK
2020-09-29 425-532-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 BELLEVUE WA
2020-09-29 458-254-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 KLAMATHFLS OR
2020-09-29 505-403-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 ALBUQURQUE NM
2020-09-29 505-403-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ALBUQURQUE NM
2020-09-29 505-403-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 ALBUQURQUE NM
2020-09-29 580-599-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ENID OK
2020-09-29 580-599-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ENID OK
2020-09-29 580-599-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ENID OK

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/24/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.