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
2005-03-16 909-537-0XXX 0000–0999Assigned PAETEC ITEL, LLC 829J MARSHALL CA
2005-03-16 909-537-1XXX 1000–1999Assigned PAETEC ITEL, LLC 829J MARSHALL CA
2005-03-16 909-537-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J MARSHALL CA
2005-03-16 909-537-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J MARSHALL CA
2005-03-16 909-537-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J MARSHALL CA
2005-03-16 909-537-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J MARSHALL CA
2005-03-16 909-537-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J MARSHALL CA
2005-03-16 909-537-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J MARSHALL CA
2005-03-16 909-537-8XXX 8000–8999Assigned PAETEC ITEL, LLC 829J MARSHALL CA
2005-03-16 909-537-9XXX 9000–9999Assigned PAETEC ITEL, LLC 829J MARSHALL CA
2005-03-15 909-568-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CLAREMONT CA
2005-03-14 909-659-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 S BERNDINO CA
2005-03-14 909-659-7XXX 7000–7999Assigned METROPCS NETWORKS, LLC 899D S BERNDINO CA
2005-03-11 909-477-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 UPLAND CA
2005-03-11 909-477-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 UPLAND CA
2005-03-11 909-477-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 UPLAND CA
2005-03-11 909-919-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 UPLAND CA
2005-03-10 909-919-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 UPLAND CA
2005-03-07 909-919-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 UPLAND CA
2005-03-06 909-354-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ONTARIO CA
2005-03-06 909-354-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ONTARIO CA
2005-03-02 909-583-0XXX 0000–0999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 REDLANDS CA
2005-03-02 909-583-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C REDLANDS CA
2005-03-02 909-697-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 FONTANA CA
2005-03-02 909-801-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 REDLANDS CA
2005-03-02 909-801-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 REDLANDS CA
2005-03-02 909-801-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 REDLANDS CA
2005-02-28 909-837-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 POMONA CA
2005-02-24 909-419-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 RIALTO CA
2005-02-23 909-480-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 CLAREMONT CA
2005-02-22 909-742-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 HIGHLAND CA
2005-02-22 909-742-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 HIGHLAND CA
2005-02-22 909-863-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 HIGHLAND CA
2005-02-18 909-450-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C CLAREMONT CA
2005-02-17 909-366-0XXX 0000–0999Assigned CHARTER IP ENABLED SERVICES, LLC 792K BIGBEAR LK CA
2005-02-17 909-547-0XXX 0000–0999Assigned CHARTER IP ENABLED SERVICES, LLC 792K BIGBEAR CY CA
2005-02-17 909-589-0XXX 0000–0999Assigned CHARTER IP ENABLED SERVICES, LLC 792K CRESTLINE CA
2005-02-17 909-744-9XXX 9000–9999Assigned CHARTER IP ENABLED SERVICES, LLC 792K ARROWHEAD CA
2005-02-17 909-758-0XXX 0000–0999Assigned CHARTER IP ENABLED SERVICES, LLC 792K UPLAND CA
2005-02-17 909-803-0XXX 0000–0999Assigned CHARTER IP ENABLED SERVICES, LLC 792K ETIWANDA CA
2005-02-17 909-804-0XXX 0000–0999Assigned CHARTER IP ENABLED SERVICES, LLC 792K MARSHALL CA
2005-02-17 909-939-0XXX 0000–0999Assigned CHARTER IP ENABLED SERVICES, LLC 792K RUNNINGSPG CA
2005-02-14 909-474-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 MARSHALL CA
2005-02-14 909-614-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 CHINO CA
2005-02-14 909-659-8XXX 8000–8999Assigned METROPCS NETWORKS, LLC 899D S BERNDINO CA
2005-02-14 909-659-9XXX 9000–9999Assigned METROPCS NETWORKS, LLC 899D S BERNDINO CA
2005-02-10 909-942-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C UPLAND CA
2005-02-09 909-546-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C RIALTO CA
2005-02-08 909-573-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 CHINO CA
2005-02-08 909-697-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 FONTANA 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.