NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

2 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 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
2016-10-12 909-760-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C DIAMONDBAR CA
2016-10-12 909-760-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C DIAMONDBAR CA
2016-10-12 909-765-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C MARSHALL CA
2016-10-12 909-765-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C MARSHALL CA
2016-10-11 909-688-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 FONTANA CA
2016-10-11 909-688-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 FONTANA CA
2016-10-05 909-297-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 UPLAND CA
2016-10-05 909-488-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 REDLANDS CA
2016-10-05 909-639-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 COLTON CA
2016-10-04 909-316-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C CALIMESA CA
2016-10-04 909-316-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C CALIMESA CA
2016-10-04 909-317-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C ETIWANDA CA
2016-10-04 909-317-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C ETIWANDA CA
2016-10-04 909-413-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C CHINO CA
2016-10-04 909-413-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C CHINO CA
2016-10-04 909-414-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C ARROWHEAD CA
2016-10-04 909-414-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C ARROWHEAD CA
2016-10-04 909-414-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ARROWHEAD CA
2016-10-04 909-414-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ARROWHEAD CA
2016-10-04 909-506-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C CLAREMONT CA
2016-10-04 909-506-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C CLAREMONT CA
2016-10-04 909-640-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C RIALTO CA
2016-10-04 909-640-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C RIALTO CA
2016-10-03 909-365-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 FONTANA CA
2016-09-30 909-506-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 CLAREMONT CA
2016-09-29 909-310-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 CHINO CA
2016-09-26 909-751-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 S BERNDINO CA
2016-09-26 909-751-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 S BERNDINO CA
2016-09-26 909-751-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 S BERNDINO CA
2016-09-19 909-488-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C REDLANDS CA
2016-09-19 909-488-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C REDLANDS CA
2016-09-19 909-488-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C REDLANDS CA
2016-09-16 909-417-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 POMONA CA
2016-09-16 909-618-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 POMONA CA
2016-09-14 909-640-0XXX 0000–0999Assigned METROPCS NETWORKS, LLC 899D RIALTO CA
2016-09-14 909-640-1XXX 1000–1999Assigned METROPCS NETWORKS, LLC 899D RIALTO CA
2016-09-13 909-462-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 S BERNDINO CA
2016-09-13 909-490-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 ONTARIO CA
2016-09-13 909-490-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ONTARIO CA
2016-09-13 909-550-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 FONTANA CA
2016-09-13 909-756-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 S BERNDINO CA
2016-09-13 909-756-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 S BERNDINO CA
2016-09-02 909-323-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C DIAMONDBAR CA
2016-09-02 909-323-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C DIAMONDBAR CA
2016-09-02 909-417-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C POMONA CA
2016-09-02 909-417-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C POMONA CA
2016-09-02 909-550-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C FONTANA CA
2016-09-02 909-550-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C FONTANA CA
2016-09-02 909-550-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C FONTANA CA
2016-09-01 909-735-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 REDLANDS 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.