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
2020-10-12 872-766-0XXX 0000–0999Assigned TELNYX LLC 073H CHICGOZN01 IL
2020-10-08 872-213-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN02 IL
2020-10-08 872-249-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 CHICGOZN01 IL
2020-10-08 872-262-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN09 IL
2020-10-08 872-262-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN09 IL
2020-10-08 872-262-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN09 IL
2020-10-08 872-365-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN02 IL
2020-10-08 872-365-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN02 IL
2020-10-08 872-365-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN02 IL
2020-10-05 872-274-1XXX 1000–1999Assigned IP HORIZON LLC 515J CHICGOZN04 IL
2020-10-02 872-264-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN01 IL
2020-10-02 872-264-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN01 IL
2020-10-02 872-272-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 CHICGOZN04 IL
2020-09-29 872-263-1XXX 1000–1999Assigned VONAGE AMERICA LLC 197D CHICGOZN01 IL
2020-09-29 872-263-9XXX 9000–9999Assigned VONAGE AMERICA LLC 197D CHICGOZN01 IL
2020-09-29 872-873-6XXX 6000–6999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E CHICGOZN11 IL
2020-09-18 872-273-2XXX 2000–2999Assigned VONAGE AMERICA LLC 197D CHICGOZN03 IL
2020-09-18 872-273-4XXX 4000–4999Assigned VONAGE AMERICA LLC 197D CHICGOZN03 IL
2020-09-16 872-763-3XXX 3000–3999Assigned VONAGE AMERICA LLC 197D CHICGOZN06 IL
2020-09-16 872-763-5XXX 5000–5999Assigned VONAGE AMERICA LLC 197D CHICGOZN06 IL
2020-09-15 872-265-5XXX 5000–5999Assigned VONAGE AMERICA LLC 197D CHICGOZN10 IL
2020-09-15 872-758-4XXX 4000–4999Assigned VONAGE AMERICA LLC 197D CHICGOZN10 IL
2020-09-14 872-365-1XXX 1000–1999Assigned VONAGE AMERICA LLC 197D CHICGOZN02 IL
2020-09-14 872-365-7XXX 7000–7999Assigned VONAGE AMERICA LLC 197D CHICGOZN02 IL
2020-09-10 872-263-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 CHICGOZN01 IL
2020-09-10 872-272-1XXX 1000–1999Assigned STRATUS NETWORKS 495J CHICGOZN04 IL
2020-09-09 872-246-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN06 IL
2020-09-09 872-246-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN06 IL
2020-09-09 872-246-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN06 IL
2020-09-09 872-246-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN06 IL
2020-09-09 872-265-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN10 IL
2020-09-09 872-265-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN10 IL
2020-09-09 872-265-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN10 IL
2020-09-09 872-265-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN10 IL
2020-09-09 872-362-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN05 IL
2020-09-09 872-362-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN05 IL
2020-09-09 872-362-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN05 IL
2020-09-09 872-362-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN05 IL
2020-09-08 872-271-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHICGOZN03 IL
2020-09-08 872-271-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHICGOZN03 IL
2020-09-04 872-365-0XXX 0000–0999Assigned STRATUS NETWORKS 495J CHICGOZN02 IL
2020-09-03 872-264-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 CHICGOZN01 IL
2020-08-29 872-895-8XXX 8000–8999Assigned TWILIO INTERNATIONAL, INC. 506J CHICGOZN01 IL
2020-08-27 872-269-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN08 IL
2020-08-27 872-269-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN08 IL
2020-08-27 872-269-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN08 IL
2020-08-27 872-269-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN08 IL
2020-08-27 872-362-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHICGOZN05 IL
2020-08-27 872-362-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHICGOZN05 IL
2020-08-27 872-362-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHICGOZN05 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.