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
2021-01-19 872-769-4XXX 4000–4999Assigned ONVOY, LLC 224C CHICGOZN06 IL
2021-01-19 872-769-7XXX 7000–7999Assigned ONVOY, LLC 224C CHICGOZN06 IL
2021-01-05 872-345-6XXX 6000–6999Assigned FRACTEL, LLC 965H CHICGOZN01 IL
2020-12-22 872-873-8XXX 8000–8999Assigned TELNYX LLC 073H CHICGOZN11 IL
2020-12-21 872-277-8XXX 8000–8999Assigned TELNYX LLC 073H CHICGOZN05 IL
2020-12-15 872-268-5XXX 5000–5999Assigned ONVOY, LLC 224C CHICGOZN01 IL
2020-12-15 872-268-6XXX 6000–6999Assigned ONVOY, LLC 224C CHICGOZN01 IL
2020-12-15 872-268-7XXX 7000–7999Assigned ONVOY, LLC 224C CHICGOZN01 IL
2020-12-15 872-268-8XXX 8000–8999Assigned ONVOY, LLC 224C CHICGOZN01 IL
2020-12-15 872-766-2XXX 2000–2999Assigned ONVOY, LLC 224C CHICGOZN01 IL
2020-12-15 872-766-7XXX 7000–7999Assigned ONVOY, LLC 224C CHICGOZN01 IL
2020-12-15 872-766-8XXX 8000–8999Assigned ONVOY, LLC 224C CHICGOZN01 IL
2020-12-15 872-895-5XXX 5000–5999Assigned ONVOY, LLC 224C CHICGOZN01 IL
2020-12-10 872-895-9XXX 9000–9999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E CHICGOZN01 IL
2020-11-13 872-269-9XXX 9000–9999Assigned STRATUS NETWORKS 495J CHICGOZN08 IL
2020-11-13 872-271-1XXX 1000–1999Assigned STRATUS NETWORKS 495J CHICGOZN03 IL
2020-11-13 872-766-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 CHICGOZN01 IL
2020-11-13 872-766-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 CHICGOZN01 IL
2020-10-28 872-274-2XXX 2000–2999Assigned ONVOY, LLC 224C CHICGOZN04 IL
2020-10-28 872-274-3XXX 3000–3999Assigned ONVOY, LLC 224C CHICGOZN04 IL
2020-10-28 872-274-4XXX 4000–4999Assigned ONVOY, LLC 224C CHICGOZN04 IL
2020-10-27 872-277-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN05 IL
2020-10-27 872-277-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN05 IL
2020-10-27 872-277-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN05 IL
2020-10-26 872-758-1XXX 1000–1999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 CHICGOZN10 IL
2020-10-22 872-272-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN04 IL
2020-10-22 872-272-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN04 IL
2020-10-22 872-272-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN04 IL
2020-10-22 872-272-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN04 IL
2020-10-22 872-272-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN04 IL
2020-10-22 872-272-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN04 IL
2020-10-22 872-272-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN04 IL
2020-10-22 872-362-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN05 IL
2020-10-22 872-362-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN05 IL
2020-10-22 872-758-0XXX 0000–0999Assigned TELNYX LLC 073H CHICGOZN10 IL
2020-10-19 872-268-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 CHICGOZN01 IL
2020-10-19 872-268-2XXX 2000–2999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E CHICGOZN01 IL
2020-10-19 872-268-3XXX 3000–3999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E CHICGOZN01 IL
2020-10-19 872-268-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 CHICGOZN01 IL
2020-10-14 872-246-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN06 IL
2020-10-14 872-269-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN08 IL
2020-10-14 872-269-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN08 IL
2020-10-14 872-269-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN08 IL
2020-10-14 872-763-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN06 IL
2020-10-14 872-763-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN06 IL
2020-10-13 872-268-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 CHICGOZN01 IL
2020-10-13 872-269-8XXX 8000–8999Assigned TELNYX LLC 073H CHICGOZN08 IL
2020-10-12 872-264-9XXX 9000–9999Assigned ONVOY, LLC 224C CHICGOZN01 IL
2020-10-12 872-272-8XXX 8000–8999Assigned TELNYX LLC 073H CHICGOZN04 IL
2020-10-12 872-762-7XXX 7000–7999Assigned TELNYX LLC 073H CHICGOZN06 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.