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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2011-08-24 909-358-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 ARROWHEAD CA
2011-08-24 909-358-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ARROWHEAD CA
2011-08-24 909-358-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ARROWHEAD CA
2011-08-23 909-302-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E FONTANA CA
2011-08-23 909-302-4XXX 4000–4999Assigned PACIFIC BELL 9740 FONTANA CA
2011-08-23 909-302-6XXX 6000–6999Assigned PACIFIC BELL 9740 FONTANA CA
2011-08-23 909-302-7XXX 7000–7999Assigned PACIFIC BELL 9740 FONTANA CA
2011-08-23 909-302-8XXX 8000–8999Assigned PACIFIC BELL 9740 FONTANA CA
2011-08-23 909-302-9XXX 9000–9999Assigned PACIFIC BELL 9740 FONTANA CA
2011-08-23 909-663-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E S BERNDINO CA
2011-08-22 909-283-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 REDLANDS CA
2011-08-19 909-254-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 COLTON CA
2011-08-12 909-295-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 ONTARIO CA
2011-08-11 909-296-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 UPLAND CA
2011-08-05 909-283-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 REDLANDS CA
2011-08-05 909-301-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E RIALTO CA
2011-08-05 909-667-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 CLAREMONT CA
2011-08-05 909-747-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 REDLANDS CA
2011-08-03 909-586-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E RIALTO CA
2011-08-03 909-907-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E HIGHLAND CA
2011-07-22 909-302-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C FONTANA CA
2011-07-22 909-500-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E CALIMESA CA
2011-07-22 909-667-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C CLAREMONT CA
2011-07-22 909-922-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E ETIWANDA CA
2011-07-21 909-705-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 MENTONE CA
2011-07-20 909-705-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E MENTONE CA
2011-07-19 909-281-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E BIGBEAR CY CA
2011-07-19 909-281-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E BIGBEAR CY CA
2011-07-19 909-296-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 UPLAND CA
2011-07-19 909-358-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ARROWHEAD CA
2011-07-19 909-667-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E CLAREMONT CA
2011-07-13 909-285-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 UPLAND CA
2011-07-13 909-285-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 UPLAND CA
2011-07-12 909-503-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 COLTON CA
2011-06-30 909-547-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E BIGBEAR CY CA
2011-06-30 909-547-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E BIGBEAR CY CA
2011-06-30 909-667-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E CLAREMONT CA
2011-06-27 909-746-1XXX 1000–1999Assigned METROPCS NETWORKS, LLC 899D RIALTO CA
2011-06-22 909-302-2XXX 2000–2999Assigned METROPCS NETWORKS, LLC 899D FONTANA CA
2011-06-22 909-302-3XXX 3000–3999Assigned METROPCS NETWORKS, LLC 899D FONTANA CA
2011-06-13 909-242-5XXX 5000–5999Assigned METROPCS NETWORKS, LLC 899D POMONA CA
2011-06-13 909-708-1XXX 1000–1999Assigned METROPCS NETWORKS, LLC 899D S BERNDINO CA
2011-06-13 909-991-3XXX 3000–3999Assigned METROPCS NETWORKS, LLC 899D S BERNDINO CA
2011-06-10 909-522-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 S BERNDINO CA
2011-06-10 909-666-3XXX 3000–3999Assigned METROPCS NETWORKS, LLC 899D RIALTO CA
2011-06-03 909-285-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 UPLAND CA
2011-06-03 909-600-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 FONTANA CA
2011-06-03 909-600-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 FONTANA CA
2011-05-31 909-600-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E FONTANA CA
2011-05-31 909-600-6XXX 6000–6999Assigned 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.