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
2016-04-08 747-204-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 CANOGAPARK CA
2016-04-08 747-204-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CANOGAPARK CA
2016-04-05 747-204-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C CANOGAPARK CA
2016-04-05 747-204-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C CANOGAPARK CA
2016-03-30 747-255-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 LACRSCENTA CA
2016-03-23 747-205-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C NO HOLLYWD CA
2016-03-23 747-205-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C NO HOLLYWD CA
2016-03-23 747-241-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C BRBN BRBN CA
2016-03-23 747-255-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C LACRSCENTA CA
2016-03-23 747-255-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C LACRSCENTA CA
2016-03-23 747-258-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C BRBN BRBN CA
2016-03-23 747-258-9XXX 9000–9999Assigned ONVOY, LLC - CA 649C BRBN BRBN CA
2016-03-22 747-250-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C VAN NUYS CA
2016-03-22 747-250-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C VAN NUYS CA
2016-03-10 747-251-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C SNFN PACM CA
2016-03-10 747-251-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C SNFN PACM CA
2016-03-09 747-273-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 GLENDALE CA
2016-03-09 747-273-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 GLENDALE CA
2016-03-08 747-241-8XXX 8000–8999Assigned CHARTER IP ENABLED SERVICES, LLC 792K BRBN BRBN CA
2016-03-07 747-205-2XXX 2000–2999Assigned TWC IP ENABLED SERVICES, LLC 793K NO HOLLYWD CA
2016-03-03 747-273-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 GLENDALE CA
2016-03-03 747-273-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 GLENDALE CA
2016-03-03 747-273-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 GLENDALE CA
2016-03-02 747-206-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 NORTHRIDGE CA
2016-03-02 747-206-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 NORTHRIDGE CA
2016-03-01 747-241-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 7240 BRBN BRBN CA
2016-02-26 747-206-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 NORTHRIDGE CA
2016-02-26 747-206-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 NORTHRIDGE CA
2016-02-26 747-250-0XXX 0000–0999Assigned METROPCS NETWORKS, LLC 899D VAN NUYS CA
2016-02-24 747-205-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C NO HOLLYWD CA
2016-02-24 747-205-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C NO HOLLYWD CA
2016-02-18 747-239-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C SNFN GRHL CA
2016-02-18 747-239-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C SNFN GRHL CA
2016-02-11 747-255-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C LACRSCENTA CA
2016-02-11 747-255-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C LACRSCENTA CA
2016-02-10 747-204-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C CANOGAPARK CA
2016-02-10 747-204-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C CANOGAPARK CA
2016-02-10 747-266-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C SNFN SPLV CA
2016-02-10 747-266-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C SNFN SPLV CA
2016-02-09 747-215-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C GLENDALE CA
2016-02-09 747-215-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C GLENDALE CA
2016-02-05 747-245-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C BRBN SNVY CA
2016-02-05 747-245-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C BRBN SNVY CA
2016-02-04 747-246-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C SNFN SNFN CA
2016-02-04 747-246-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C SNFN SNFN CA
2016-02-04 747-282-3XXX 3000–3999Assigned IP HORIZON LLC 515J AGOURA CA
2016-02-02 747-247-3XXX 3000–3999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F VAN NUYS CA
2016-02-01 747-237-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C NORTHRIDGE CA
2016-01-29 747-230-8XXX 8000–8999Assigned TWC IP ENABLED SERVICES, LLC 793K CANOGAPARK CA
2016-01-29 747-246-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K SNFN SNFN 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.