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
2013-01-14 909-315-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 CHINO CA
2013-01-14 909-315-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 CHINO CA
2013-01-14 909-824-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 COLTON CA
2012-12-19 909-344-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 CLAREMONT CA
2012-12-11 909-303-8XXX 8000–8999Assigned PAETEC ITEL, LLC 829J UPLAND CA
2012-12-10 909-328-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 REDLANDS CA
2012-12-10 909-347-2XXX 2000–2999Assigned METROPCS NETWORKS, LLC 899D FONTANA CA
2012-12-10 909-347-3XXX 3000–3999Assigned METROPCS NETWORKS, LLC 899D FONTANA CA
2012-12-10 909-351-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E MENTONE CA
2012-12-10 909-351-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E MENTONE CA
2012-12-06 909-347-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 FONTANA CA
2012-12-04 909-340-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C BIGBEAR LK CA
2012-12-04 909-345-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C DIAMONDBAR CA
2012-12-04 909-345-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C DIAMONDBAR CA
2012-12-04 909-345-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C DIAMONDBAR CA
2012-12-04 909-347-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C FONTANA CA
2012-12-04 909-347-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C FONTANA CA
2012-12-04 909-766-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C POMONA CA
2012-12-04 909-766-9XXX 9000–9999Assigned ONVOY, LLC - CA 649C POMONA CA
2012-12-03 909-254-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E COLTON CA
2012-12-03 909-341-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E RIALTO CA
2012-12-03 909-341-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E RIALTO CA
2012-12-03 909-341-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E RIALTO CA
2012-12-03 909-554-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E COLTON CA
2012-11-19 909-767-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 UPLAND CA
2012-11-14 909-281-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E BIGBEAR CY CA
2012-11-14 909-285-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E UPLAND CA
2012-11-14 909-296-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E UPLAND CA
2012-11-14 909-321-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E ONTARIO CA
2012-11-14 909-321-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E ONTARIO CA
2012-11-14 909-353-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E REDLANDS CA
2012-11-14 909-353-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E REDLANDS CA
2012-11-14 909-500-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E CALIMESA CA
2012-11-14 909-726-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E MARSHALL CA
2012-11-14 909-767-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E UPLAND CA
2012-11-07 909-713-2XXX 2000–2999Assigned TWC IP ENABLED SERVICES, LLC 793K MARSHALL CA
2012-10-23 909-347-1XXX 1000–1999Assigned PACIFIC BELL 9740 FONTANA CA
2012-10-17 909-343-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7139 ARROWHEAD CA
2012-10-17 909-500-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7139 CALIMESA CA
2012-10-16 909-303-2XXX 2000–2999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J UPLAND CA
2012-10-16 909-303-4XXX 4000–4999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J UPLAND CA
2012-10-16 909-927-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E CHINO CA
2012-10-03 909-245-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C CRESTLINE CA
2012-10-03 909-245-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C CRESTLINE CA
2012-10-03 909-245-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C CRESTLINE CA
2012-10-03 909-245-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C CRESTLINE CA
2012-10-03 909-245-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C CRESTLINE CA
2012-10-02 909-344-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 CLAREMONT CA
2012-10-02 909-344-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CLAREMONT CA
2012-09-27 909-347-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E FONTANA 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.