NumberResearch Membership · Data 09/21/2026

Recent thousands-block assignments

2 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026

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 909
ONVOY, LLC - 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
2008-10-23 909-486-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E S BERNDINO CA
2008-10-23 909-542-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E CLAREMONT CA
2008-10-23 909-575-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E CLAREMONT CA
2008-10-23 909-764-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E POMONA CA
2008-10-23 909-907-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E HIGHLAND CA
2008-10-23 909-979-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E DIAMONDBAR CA
2008-10-20 909-218-5XXX 5000–5999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J ONTARIO CA
2008-10-20 909-243-7XXX 7000–7999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J UPLAND CA
2008-10-20 909-264-2XXX 2000–2999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J COLTON CA
2008-10-16 909-246-5XXX 5000–5999Assigned METROPCS NETWORKS, LLC 899D S BERNDINO CA
2008-10-16 909-252-6XXX 6000–6999Assigned METROPCS NETWORKS, LLC 899D S BERNDINO CA
2008-10-16 909-252-8XXX 8000–8999Assigned METROPCS NETWORKS, LLC 899D S BERNDINO CA
2008-10-16 909-252-9XXX 9000–9999Assigned METROPCS NETWORKS, LLC 899D S BERNDINO CA
2008-10-14 909-726-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 MARSHALL CA
2008-10-13 909-218-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 ONTARIO CA
2008-09-30 909-258-6XXX 6000–6999Assigned METROPCS NETWORKS, LLC 899D RIALTO CA
2008-09-30 909-258-7XXX 7000–7999Assigned METROPCS NETWORKS, LLC 899D RIALTO CA
2008-09-30 909-258-8XXX 8000–8999Assigned METROPCS NETWORKS, LLC 899D RIALTO CA
2008-09-24 909-939-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C RUNNINGSPG CA
2008-09-18 909-242-0XXX 0000–0999Assigned METROPCS NETWORKS, LLC 899D POMONA CA
2008-09-18 909-242-1XXX 1000–1999Assigned METROPCS NETWORKS, LLC 899D POMONA CA
2008-09-18 909-242-2XXX 2000–2999Assigned METROPCS NETWORKS, LLC 899D POMONA CA
2008-09-18 909-264-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 COLTON CA
2008-09-12 909-436-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ARROWHEAD CA
2008-09-12 909-544-3XXX 3000–3999Assigned METROPCS NETWORKS, LLC 899D ONTARIO CA
2008-09-12 909-544-6XXX 6000–6999Assigned METROPCS NETWORKS, LLC 899D ONTARIO CA
2008-09-12 909-544-8XXX 8000–8999Assigned METROPCS NETWORKS, LLC 899D ONTARIO CA
2008-09-10 909-258-2XXX 2000–2999Assigned TWC IP ENABLED SERVICES, LLC 793K RIALTO CA
2008-09-10 909-258-3XXX 3000–3999Assigned TWC IP ENABLED SERVICES, LLC 793K RIALTO CA
2008-09-08 909-235-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 ONTARIO CA
2008-09-04 909-251-1XXX 1000–1999Assigned METROPCS NETWORKS, LLC 899D FONTANA CA
2008-09-04 909-251-3XXX 3000–3999Assigned METROPCS NETWORKS, LLC 899D FONTANA CA
2008-09-04 909-251-6XXX 6000–6999Assigned METROPCS NETWORKS, LLC 899D FONTANA CA
2008-09-04 909-251-8XXX 8000–8999Assigned METROPCS NETWORKS, LLC 899D FONTANA CA
2008-08-27 909-733-0XXX 0000–0999Assigned CURATEL, LLC - CA 993B S BERNDINO CA
2008-08-22 909-878-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C BIGBEAR LK CA
2008-08-12 909-252-1XXX 1000–1999Assigned METROPCS NETWORKS, LLC 899D S BERNDINO CA
2008-08-12 909-252-2XXX 2000–2999Assigned METROPCS NETWORKS, LLC 899D S BERNDINO CA
2008-08-12 909-252-3XXX 3000–3999Assigned METROPCS NETWORKS, LLC 899D S BERNDINO CA
2008-08-07 909-217-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 CHINO CA
2008-08-07 909-217-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 CHINO CA
2008-08-07 909-253-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 REDLANDS CA
2008-07-24 909-461-6XXX 6000–6999Assigned TWC IP ENABLED SERVICES, LLC 793K POMONA CA
2008-07-23 909-212-4XXX 4000–4999Assigned METROPCS NETWORKS, LLC 899D ONTARIO CA
2008-07-23 909-212-9XXX 9000–9999Assigned METROPCS NETWORKS, LLC 899D ONTARIO CA
2008-07-22 909-258-0XXX 0000–0999Assigned METROPCS NETWORKS, LLC 899D RIALTO CA
2008-07-18 909-256-1XXX 1000–1999Assigned METROPCS NETWORKS, LLC 899D UPLAND CA
2008-07-18 909-962-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 CLAREMONT CA
2008-07-16 909-217-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 CHINO CA
2008-07-16 909-217-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CHINO CA

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.