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
2018-12-24 909-616-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 DIAMONDBAR CA
2018-12-24 909-701-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 UPLAND CA
2018-12-24 909-837-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 POMONA CA
2018-12-17 909-507-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 FONTANA CA
2018-12-17 909-516-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 CHINO CA
2018-12-06 909-701-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 UPLAND CA
2018-12-04 909-449-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MARSHALL CA
2018-12-03 909-470-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 ARROWHEAD CA
2018-12-03 909-470-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 ARROWHEAD CA
2018-11-16 909-515-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E S BERNDINO CA
2018-11-05 909-317-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ETIWANDA CA
2018-11-05 909-642-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 FONTANA CA
2018-10-17 909-407-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 CLAREMONT CA
2018-10-16 909-704-9XXX 9000–9999Assigned METROPCS NETWORKS, LLC 899D ONTARIO CA
2018-10-11 909-505-8XXX 8000–8999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F BIGBEAR CY CA
2018-10-11 909-507-1XXX 1000–1999Assigned METROPCS NETWORKS, LLC 899D FONTANA CA
2018-10-11 909-515-4XXX 4000–4999Assigned METROPCS NETWORKS, LLC 899D S BERNDINO CA
2018-10-11 909-676-6XXX 6000–6999Assigned METROPCS NETWORKS, LLC 899D RIALTO CA
2018-10-08 909-441-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 FONTANA CA
2018-10-04 909-515-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E S BERNDINO CA
2018-10-04 909-516-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CHINO CA
2018-10-02 909-513-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ARROWHEAD CA
2018-10-02 909-513-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ARROWHEAD CA
2018-10-02 909-513-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ARROWHEAD CA
2018-10-01 909-403-8XXX 8000–8999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F RUNNINGSPG CA
2018-09-25 909-616-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 DIAMONDBAR CA
2018-09-24 909-768-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CALIMESA CA
2018-09-14 909-516-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CHINO CA
2018-09-14 909-737-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 HIGHLAND CA
2018-09-13 909-789-4XXX 4000–4999Assigned METROPCS NETWORKS, LLC 899D ONTARIO CA
2018-09-13 909-789-6XXX 6000–6999Assigned METROPCS NETWORKS, LLC 899D ONTARIO CA
2018-09-12 909-698-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K CRESTLINE CA
2018-08-30 909-637-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 FONTANA CA
2018-08-23 909-507-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 FONTANA CA
2018-08-23 909-507-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 FONTANA CA
2018-08-06 909-513-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 ARROWHEAD CA
2018-08-02 909-698-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 CRESTLINE CA
2018-06-21 909-403-3XXX 3000–3999Assigned TELNYX LLC 073H RUNNINGSPG CA
2018-06-21 909-415-3XXX 3000–3999Assigned TELNYX LLC 073H BIGBEAR LK CA
2018-06-19 909-789-2XXX 2000–2999Assigned METROPCS NETWORKS, LLC 899D ONTARIO CA
2018-06-19 909-789-3XXX 3000–3999Assigned METROPCS NETWORKS, LLC 899D ONTARIO CA
2018-05-24 909-470-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 ARROWHEAD CA
2018-05-04 909-507-5XXX 5000–5999Assigned INTEGRATED PATH COMMUNICATIONS, LLC - CA 707H FONTANA CA
2018-05-04 909-955-0XXX 0000–0999Assigned INTEGRATED PATH COMMUNICATIONS, LLC - CA 707H RIALTO CA
2018-05-01 909-515-2XXX 2000–2999Assigned METROPCS NETWORKS, LLC 899D S BERNDINO CA
2018-04-26 909-293-5XXX 5000–5999Assigned INTEGRATED PATH COMMUNICATIONS, LLC - CA 707H CLAREMONT CA
2018-04-26 909-317-9XXX 9000–9999Assigned INTEGRATED PATH COMMUNICATIONS, LLC - CA 707H ETIWANDA CA
2018-04-26 909-403-9XXX 9000–9999Assigned INTEGRATED PATH COMMUNICATIONS, LLC - CA 707H RUNNINGSPG CA
2018-04-26 909-449-5XXX 5000–5999Assigned INTEGRATED PATH COMMUNICATIONS, LLC - CA 707H MARSHALL CA
2018-04-26 909-505-6XXX 6000–6999Assigned INTEGRATED PATH COMMUNICATIONS, LLC - CA 707H BIGBEAR CY 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.