NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

24 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026

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 — NPA 747
ONVOY, LLC - CA 12
EXIANT COMMUNICATIONS LLC 5
PEERLESS NETWORK OF CALIFORNIA, LLC - CA 2
NEW CINGULAR WIRELESS PCS, LLC 2
BANDWIDTH.COM CLEC, LLC - CA 2
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
2022-01-07 747-321-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 SNFN PACM CA
2022-01-07 747-321-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 SNFN PACM CA
2022-01-07 747-321-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SNFN PACM CA
2022-01-07 747-367-8XXX 8000–8999Assigned TON80 COMMUNICATIONS, LLC 516J BRBN BRBN CA
2022-01-05 747-488-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 SNFN SNFN CA
2022-01-05 747-488-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 SNFN SNFN CA
2022-01-05 747-488-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 SNFN SNFN CA
2022-01-05 747-488-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 SNFN SNFN CA
2021-12-17 747-319-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H BRBN SNVY CA
2021-12-17 747-319-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H BRBN SNVY CA
2021-12-17 747-577-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 RESEDA CA
2021-12-17 747-789-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H NO HOLLYWD CA
2021-12-17 747-789-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H NO HOLLYWD CA
2021-12-17 747-789-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H NO HOLLYWD CA
2021-12-15 747-308-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C BRBN BRBN CA
2021-12-15 747-308-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C BRBN BRBN CA
2021-12-15 747-319-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C BRBN SNVY CA
2021-12-15 747-319-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C BRBN SNVY CA
2021-12-15 747-319-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C BRBN SNVY CA
2021-12-10 747-320-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 CANOGAPARK CA
2021-12-10 747-320-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 CANOGAPARK CA
2021-12-10 747-320-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 CANOGAPARK CA
2021-12-10 747-320-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 CANOGAPARK CA
2021-12-10 747-320-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CANOGAPARK CA
2021-12-09 747-441-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C GLENDALE CA
2021-12-09 747-441-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C GLENDALE CA
2021-12-09 747-441-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C GLENDALE CA
2021-12-09 747-441-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C GLENDALE CA
2021-12-09 747-441-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C GLENDALE CA
2021-12-09 747-441-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C GLENDALE CA
2021-12-09 747-441-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C GLENDALE CA
2021-12-08 747-306-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 GLENDALE CA
2021-12-08 747-306-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 GLENDALE CA
2021-12-08 747-306-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 GLENDALE CA
2021-12-08 747-306-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 GLENDALE CA
2021-12-08 747-306-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 GLENDALE CA
2021-11-29 747-399-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C LACRSCENTA CA
2021-11-18 747-476-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 NO HOLLYWD CA
2021-11-18 747-476-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 NO HOLLYWD CA
2021-11-18 747-476-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 NO HOLLYWD CA
2021-11-18 747-499-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 VAN NUYS CA
2021-11-18 747-499-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 VAN NUYS CA
2021-11-18 747-499-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 VAN NUYS CA
2021-11-18 747-966-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 SNFN GRHL CA
2021-11-18 747-966-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 SNFN GRHL CA
2021-11-17 747-399-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C LACRSCENTA CA
2021-11-17 747-399-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C LACRSCENTA CA
2021-11-17 747-399-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C LACRSCENTA CA
2021-11-10 747-308-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 BRBN BRBN CA
2021-11-10 747-308-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 BRBN BRBN CA

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.