NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

16 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 951
ONVOY, LLC - CA 14
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 1
BANDWIDTH.COM CLEC, LLC - CA 1
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
2018-04-26 951-429-5XXX 5000–5999Assigned INTEGRATED PATH COMMUNICATIONS, LLC - CA 707H WOODCREST CA
2018-04-26 951-430-7XXX 7000–7999Assigned INTEGRATED PATH COMMUNICATIONS, LLC - CA 707H SUN CITY CA
2018-04-26 951-433-6XXX 6000–6999Assigned INTEGRATED PATH COMMUNICATIONS, LLC - CA 707H TEMSCL CNY CA
2018-04-26 951-439-5XXX 5000–5999Assigned INTEGRATED PATH COMMUNICATIONS, LLC - CA 707H HEMT SAGE CA
2018-04-26 951-459-4XXX 4000–4999Assigned INTEGRATED PATH COMMUNICATIONS, LLC - CA 707H ELSINORE CA
2018-04-26 951-466-5XXX 5000–5999Assigned INTEGRATED PATH COMMUNICATIONS, LLC - CA 707H TEMECULA CA
2018-04-26 951-478-9XXX 9000–9999Assigned INTEGRATED PATH COMMUNICATIONS, LLC - CA 707H MORENO CA
2018-04-26 951-484-7XXX 7000–7999Assigned INTEGRATED PATH COMMUNICATIONS, LLC - CA 707H HEMT HEMT CA
2018-04-26 951-494-5XXX 5000–5999Assigned INTEGRATED PATH COMMUNICATIONS, LLC - CA 707H IDYLLWILD CA
2018-04-26 951-524-5XXX 5000–5999Assigned INTEGRATED PATH COMMUNICATIONS, LLC - CA 707H BANNING CA
2018-04-26 951-651-7XXX 7000–7999Assigned INTEGRATED PATH COMMUNICATIONS, LLC - CA 707H HEMT SNJC CA
2018-04-26 951-758-5XXX 5000–5999Assigned INTEGRATED PATH COMMUNICATIONS, LLC - CA 707H RIVERSIDE CA
2018-04-23 951-336-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J CORONA CA
2018-04-16 951-450-9XXX 9000–9999Assigned METROPCS NETWORKS, LLC 899D PERRIS CA
2018-04-12 951-963-0XXX 0000–0999Assigned METROPCS NETWORKS, LLC 899D CORONA CA
2018-04-12 951-963-1XXX 1000–1999Assigned METROPCS NETWORKS, LLC 899D CORONA CA
2018-04-04 951-822-0XXX 0000–0999Assigned METROPCS NETWORKS, LLC 899D PERRIS CA
2018-04-04 951-822-1XXX 1000–1999Assigned METROPCS NETWORKS, LLC 899D PERRIS CA
2018-04-04 951-822-3XXX 3000–3999Assigned METROPCS NETWORKS, LLC 899D PERRIS CA
2018-04-04 951-822-4XXX 4000–4999Assigned METROPCS NETWORKS, LLC 899D PERRIS CA
2018-04-04 951-822-5XXX 5000–5999Assigned METROPCS NETWORKS, LLC 899D PERRIS CA
2018-04-04 951-822-6XXX 6000–6999Assigned METROPCS NETWORKS, LLC 899D PERRIS CA
2018-04-04 951-822-7XXX 7000–7999Assigned METROPCS NETWORKS, LLC 899D PERRIS CA
2018-04-04 951-822-8XXX 8000–8999Assigned METROPCS NETWORKS, LLC 899D PERRIS CA
2018-03-28 951-783-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 RIVERSIDE CA
2018-03-22 951-822-9XXX 9000–9999Assigned METROPCS NETWORKS, LLC 899D PERRIS CA
2018-03-21 951-410-7XXX 7000–7999Assigned METROPCS NETWORKS, LLC 899D RIVERSIDE CA
2018-03-21 951-651-8XXX 8000–8999Assigned METROPCS NETWORKS, LLC 899D HEMT SNJC CA
2018-03-19 951-418-7XXX 7000–7999Assigned METROPCS NETWORKS, LLC 899D PERRIS CA
2018-03-19 951-449-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 PERRIS CA
2018-03-19 951-449-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 PERRIS CA
2018-03-19 951-449-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 PERRIS CA
2018-03-19 951-449-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 PERRIS CA
2018-03-19 951-449-4XXX 4000–4999Assigned METROPCS NETWORKS, LLC 899D PERRIS CA
2018-03-19 951-449-5XXX 5000–5999Assigned METROPCS NETWORKS, LLC 899D PERRIS CA
2018-03-19 951-497-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 7240 MORENO CA
2018-03-16 951-524-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BANNING CA
2018-03-14 951-417-2XXX 2000–2999Assigned METROPCS NETWORKS, LLC 899D MURRIETA CA
2018-03-09 951-459-5XXX 5000–5999Assigned METROPCS NETWORKS, LLC 899D ELSINORE CA
2018-03-05 951-449-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 PERRIS CA
2018-03-05 951-449-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 PERRIS CA
2018-03-05 951-449-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 PERRIS CA
2018-03-05 951-550-2XXX 2000–2999Assigned METROPCS NETWORKS, LLC 899D PERRIS CA
2018-03-05 951-550-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 PERRIS CA
2018-02-06 951-406-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ARLINGTON CA
2018-02-06 951-441-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ARLINGTON CA
2018-02-06 951-441-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ARLINGTON CA
2018-02-06 951-977-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ARLINGTON CA
2018-01-24 951-512-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7139 RIVERSIDE CA
2018-01-24 951-512-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7139 RIVERSIDE 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.