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 872
NEW CINGULAR WIRELESS PCS, LLC - IL 8
8X8, INC. 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
2019-04-09 872-348-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN08 IL
2019-04-09 872-348-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN08 IL
2019-04-09 872-348-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN08 IL
2019-04-09 872-348-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN08 IL
2019-04-09 872-348-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN08 IL
2019-04-09 872-348-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN08 IL
2019-04-09 872-348-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN08 IL
2019-04-09 872-348-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN08 IL
2019-04-09 872-704-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN08 IL
2019-02-27 872-266-6XXX 6000–6999Assigned ONVOY, LLC 224C CHICGOZN08 IL
2019-02-27 872-266-7XXX 7000–7999Assigned ONVOY, LLC 224C CHICGOZN08 IL
2019-02-27 872-266-8XXX 8000–8999Assigned ONVOY, LLC 224C CHICGOZN08 IL
2019-02-27 872-266-9XXX 9000–9999Assigned ONVOY, LLC 224C CHICGOZN08 IL
2019-02-14 872-246-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 CHICGOZN06 IL
2019-02-07 872-276-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 CHICGOZN06 IL
2019-02-06 872-234-7XXX 7000–7999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E CHICGOZN10 IL
2019-01-28 872-245-1XXX 1000–1999Assigned VOIP INNOVATIONS, LLC 597F CHICGOZN04 IL
2019-01-22 872-266-5XXX 5000–5999Assigned VOIP INNOVATIONS, LLC 597F CHICGOZN08 IL
2019-01-17 872-213-8XXX 8000–8999Assigned VOIP INNOVATIONS, LLC 597F CHICGOZN02 IL
2018-12-27 872-888-0XXX 0000–0999Assigned TELNYX LLC 073H CHICGOZN02 IL
2018-12-03 872-231-4XXX 4000–4999Assigned ONVOY, LLC 224C CHICGOZN05 IL
2018-12-03 872-813-4XXX 4000–4999Assigned ONVOY, LLC 224C CHICGOZN05 IL
2018-11-30 872-254-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN08 IL
2018-10-29 872-254-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN08 IL
2018-10-29 872-254-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN08 IL
2018-10-19 872-227-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 CHICGOZN03 IL
2018-10-19 872-304-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 CHICGOZN03 IL
2018-10-18 872-757-6XXX 6000–6999Assigned ONVOY, LLC 224C CHICGOZN07 IL
2018-10-09 872-254-7XXX 7000–7999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E CHICGOZN08 IL
2018-10-09 872-484-7XXX 7000–7999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E CHICGOZN03 IL
2018-10-09 872-757-7XXX 7000–7999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E CHICGOZN07 IL
2018-09-19 872-204-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN08 IL
2018-09-19 872-204-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN08 IL
2018-09-19 872-252-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN08 IL
2018-08-23 872-231-3XXX 3000–3999Assigned ONVOY, LLC 224C CHICGOZN05 IL
2018-08-22 872-870-9XXX 9000–9999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E CHICGOZN09 IL
2018-07-23 872-348-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN08 IL
2018-06-20 872-769-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 CHICGOZN06 IL
2018-06-15 872-231-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN05 IL
2018-05-22 872-757-5XXX 5000–5999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E CHICGOZN07 IL
2018-04-05 872-762-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 CHICGOZN06 IL
2018-04-05 872-763-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 CHICGOZN06 IL
2018-03-02 872-307-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN08 IL
2018-03-02 872-307-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN08 IL
2018-03-02 872-307-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN08 IL
2018-03-02 872-307-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN08 IL
2018-03-02 872-760-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN10 IL
2018-03-02 872-760-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN10 IL
2018-03-02 872-760-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN10 IL
2018-03-02 872-760-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN10 IL

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.