NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

17 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 424
ONVOY, LLC - CA 15
OPENTACT INC. 1
NEW CINGULAR WIRELESS PCS, LLC 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
2010-11-17 424-703-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 SAN PEDRO CA
2010-11-16 424-999-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E TORRANCE CA
2010-11-15 424-231-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C SNMN SNMN CA
2010-11-11 424-250-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C LOMITA CA
2010-11-03 424-543-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 CULVERCITY CA
2010-11-03 424-570-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SAN PEDRO CA
2010-10-29 424-888-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 INGLEWOOD CA
2010-10-27 424-221-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 CMTN GRDN CA
2010-10-27 424-226-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 AVALON CA
2010-10-27 424-256-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 W ANGELES CA
2010-10-21 424-260-9XXX 9000–9999Assigned ONVOY, LLC - CA 649C CMTN GRDN CA
2010-10-20 424-256-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E W ANGELES CA
2010-10-20 424-571-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E TORRANCE CA
2010-10-15 424-777-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C BEVERLYHLS CA
2010-10-15 424-777-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C BEVERLYHLS CA
2010-10-15 424-777-9XXX 9000–9999Assigned ONVOY, LLC - CA 649C BEVERLYHLS CA
2010-10-11 424-257-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E REDONDO CA
2010-10-11 424-257-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E REDONDO CA
2010-10-11 424-257-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E REDONDO CA
2010-10-11 424-257-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E REDONDO CA
2010-10-11 424-257-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E REDONDO CA
2010-10-11 424-257-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E REDONDO CA
2010-10-11 424-257-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E REDONDO CA
2010-10-11 424-644-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 MALIBU CA
2010-10-08 424-777-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C BEVERLYHLS CA
2010-10-07 424-400-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 REDONDO CA
2010-10-06 424-250-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LOMITA CA
2010-10-06 424-255-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E HAWTHORNE CA
2010-10-06 424-444-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E CMTN CMTN CA
2010-10-06 424-444-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E CMTN CMTN CA
2010-10-06 424-444-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E CMTN CMTN CA
2010-10-06 424-570-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SAN PEDRO CA
2010-10-06 424-570-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SAN PEDRO CA
2010-10-05 424-571-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 TORRANCE CA
2010-09-30 424-250-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LOMITA CA
2010-09-30 424-262-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E REDONDO CA
2010-09-30 424-265-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E REDONDO CA
2010-09-29 424-231-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SNMN SNMN CA
2010-09-29 424-231-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SNMN SNMN CA
2010-09-29 424-255-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E HAWTHORNE CA
2010-09-29 424-255-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E HAWTHORNE CA
2010-09-29 424-444-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E CMTN CMTN CA
2010-09-29 424-444-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E CMTN CMTN CA
2010-09-29 424-444-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E CMTN CMTN CA
2010-09-29 424-444-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E CMTN CMTN CA
2010-09-29 424-625-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SNMN MRVS CA
2010-09-29 424-625-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SNMN MRVS CA
2010-09-29 424-777-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E BEVERLYHLS CA
2010-09-29 424-777-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E BEVERLYHLS CA
2010-09-29 424-888-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E INGLEWOOD 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.