NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

12 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 10
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
2012-12-04 424-271-9XXX 9000–9999Assigned ONVOY, LLC - CA 649C TORRANCE CA
2012-12-04 424-732-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C INGLEWOOD CA
2012-12-04 424-732-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C INGLEWOOD CA
2012-12-04 424-732-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C INGLEWOOD CA
2012-12-03 424-203-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C LOMITA CA
2012-12-03 424-277-9XXX 9000–9999Assigned ONVOY, LLC - CA 649C EL SEGUNDO CA
2012-12-03 424-294-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C HAWTHORNE CA
2012-12-03 424-738-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C AVALON CA
2012-11-16 424-216-4XXX 4000–4999Assigned METROPCS NETWORKS, LLC 899D SNMN MRVS CA
2012-11-07 424-732-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 INGLEWOOD CA
2012-10-30 424-216-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SNMN MRVS CA
2012-10-30 424-228-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SNMN MRVS CA
2012-10-30 424-772-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SAN PEDRO CA
2012-10-29 424-263-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LOMITA CA
2012-10-29 424-781-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E MALIBU CA
2012-10-25 424-336-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 HAWTHORNE CA
2012-10-25 424-465-9XXX 9000–9999Assigned TWC IP ENABLED SERVICES, LLC 793K W ANGELES CA
2012-10-19 424-284-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C BEVERLYHLS CA
2012-10-16 424-269-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E HAWTHORNE CA
2012-10-16 424-488-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C TORRANCE CA
2012-10-16 424-675-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E HAWTHORNE CA
2012-10-12 424-252-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SNMN SNMN CA
2012-10-12 424-333-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 BEVERLYHLS CA
2012-10-12 424-465-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 W ANGELES CA
2012-10-08 424-210-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7139 SAN PEDRO CA
2012-10-05 424-529-7XXX 7000–7999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F CMTN CMTN CA
2012-10-05 424-529-8XXX 8000–8999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F CMTN CMTN CA
2012-10-05 424-571-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C TORRANCE CA
2012-10-03 424-500-1XXX 1000–1999Assigned METROPCS NETWORKS, LLC 899D SNMN MRVS CA
2012-09-26 424-336-7XXX 7000–7999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J HAWTHORNE CA
2012-09-20 424-251-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 LOMITA CA
2012-09-18 424-252-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 SNMN SNMN CA
2012-09-11 424-465-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E W ANGELES CA
2012-09-11 424-465-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E W ANGELES CA
2012-09-11 424-465-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E W ANGELES CA
2012-09-04 424-252-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SNMN SNMN CA
2012-09-04 424-252-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SNMN SNMN CA
2012-08-29 424-283-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 BEVERLYHLS CA
2012-08-29 424-283-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 BEVERLYHLS CA
2012-08-15 424-235-2XXX 2000–2999Assigned CHARTER IP ENABLED SERVICES, LLC 792K MALIBU CA
2012-08-15 424-268-7XXX 7000–7999Assigned TWC IP ENABLED SERVICES, LLC 793K SNMN SNMN CA
2012-08-14 424-273-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 W ANGELES CA
2012-08-14 424-275-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 REDONDO CA
2012-08-14 424-283-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 BEVERLYHLS CA
2012-08-10 424-286-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E CMTN GRDN CA
2012-08-10 424-286-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E CMTN GRDN CA
2012-08-03 424-269-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 HAWTHORNE CA
2012-08-03 424-277-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 EL SEGUNDO CA
2012-07-31 424-273-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C W ANGELES CA
2012-07-31 424-276-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C W ANGELES 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.