NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

9 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 909
ONVOY, LLC - CA 6
PEERLESS NETWORK OF CALIFORNIA, LLC - CA 2
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
2006-06-22 909-895-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 DIAMONDBAR CA
2006-06-16 909-486-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 S BERNDINO CA
2006-06-16 909-486-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 S BERNDINO CA
2006-06-16 909-486-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 S BERNDINO CA
2006-06-16 909-549-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 FONTANA CA
2006-06-16 909-549-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 FONTANA CA
2006-06-16 909-549-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 FONTANA CA
2006-06-16 909-549-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 FONTANA CA
2006-06-16 909-781-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 ONTARIO CA
2006-06-16 909-781-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 ONTARIO CA
2006-06-16 909-781-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 ONTARIO CA
2006-06-16 909-781-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 ONTARIO CA
2006-06-13 909-471-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 FONTANA CA
2006-06-13 909-532-7XXX 7000–7999Assigned UTILITY TELECOM GROUP, LLC - CA 9262 UPLAND CA
2006-06-09 909-784-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 POMONA CA
2006-06-09 909-784-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 POMONA CA
2006-06-08 909-565-5XXX 5000–5999Assigned METROPCS NETWORKS, LLC 899D FONTANA CA
2006-06-08 909-565-6XXX 6000–6999Assigned METROPCS NETWORKS, LLC 899D FONTANA CA
2006-06-08 909-567-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 S BERNDINO CA
2006-06-08 909-567-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 S BERNDINO CA
2006-06-08 909-810-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 MENTONE CA
2006-06-07 909-440-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 RIALTO CA
2006-06-07 909-440-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 RIALTO CA
2006-06-07 909-638-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 ONTARIO CA
2006-06-07 909-638-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 ONTARIO CA
2006-05-26 909-450-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 CLAREMONT CA
2006-05-26 909-450-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 CLAREMONT CA
2006-05-26 909-945-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 UPLAND CA
2006-05-25 909-471-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 FONTANA CA
2006-05-25 909-533-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 COLTON CA
2006-05-24 909-804-2XXX 2000–2999Assigned CHARTER IP ENABLED SERVICES, LLC 792K MARSHALL CA
2006-05-17 909-763-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 S BERNDINO CA
2006-05-15 909-450-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 CLAREMONT CA
2006-05-11 909-680-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CHINO CA
2006-05-10 909-366-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C BIGBEAR LK CA
2006-05-09 909-786-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J ONTARIO CA
2006-05-09 909-786-4XXX 4000–4999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J ONTARIO CA
2006-05-05 909-362-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 HIGHLAND CA
2006-05-05 909-362-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 HIGHLAND CA
2006-05-04 909-471-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 FONTANA CA
2006-05-04 909-784-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 POMONA CA
2006-05-03 909-895-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 DIAMONDBAR CA
2006-04-27 909-652-6XXX 6000–6999Assigned FRONTIER CALIFORNIA INC. 2319 UPLAND CA
2006-04-27 909-652-7XXX 7000–7999Assigned FRONTIER CALIFORNIA INC. 2319 UPLAND CA
2006-04-27 909-652-8XXX 8000–8999Assigned FRONTIER CALIFORNIA INC. 2319 UPLAND CA
2006-04-24 909-652-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 UPLAND CA
2006-04-21 909-461-1XXX 1000–1999Assigned IP HORIZON LLC 515J POMONA CA
2006-04-21 909-461-2XXX 2000–2999Assigned IP HORIZON LLC 515J POMONA CA
2006-04-21 909-532-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 UPLAND CA
2006-04-21 909-532-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 UPLAND 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.