NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

18 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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 983
BANDWIDTH.COM CLEC, LLC - CO 10
ONVOY, LLC - CO 4
T-MOBILE USA, INC. 1
INTRADO COMMUNICATIONS, LLC 1
BOOST SUBSCRIBERCO L.L.C. 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
2026-09-17 983-221-3XXX 3000–3999Assigned ONVOY, LLC - CO 026D DECKERS CO
2026-09-17 983-230-7XXX 7000–7999Assigned INTRADO COMMUNICATIONS, LLC 809C LONGMONT CO
2026-09-11 983-880-1XXX 1000–1999Assigned 8X8, INC. 193E DENVER CO
2026-09-02 983-229-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - CO 078F DENVER CO
2026-09-02 983-229-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - CO 078F DENVER CO
2026-09-02 983-229-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - CO 078F DENVER CO
2026-09-02 983-229-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - CO 078F DENVER CO
2026-09-02 983-229-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - CO 078F DENVER CO
2026-09-02 983-229-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - CO 078F DENVER CO
2026-09-02 983-229-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - CO 078F DENVER CO
2026-09-02 983-229-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - CO 078F DENVER CO
2026-09-02 983-230-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - CO 078F LONGMONT CO
2026-09-02 983-230-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - CO 078F LONGMONT CO
2026-08-26 983-229-6XXX 6000–6999Assigned BOOST SUBSCRIBERCO L.L.C. 490J DENVER CO
2026-08-26 983-230-0XXX 0000–0999Assigned ONVOY, LLC - CO 026D LONGMONT CO
2026-08-26 983-230-1XXX 1000–1999Assigned ONVOY, LLC - CO 026D LONGMONT CO
2026-08-21 983-209-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 FORTLUPTON CO
2026-08-21 983-229-0XXX 0000–0999Assigned ONVOY, LLC - CO 026D DENVER CO
2026-08-11 983-221-2XXX 2000–2999Assigned ONVOY, LLC - CO 026D DECKERS CO
2026-08-11 983-227-9XXX 9000–9999Assigned ONVOY, LLC - CO 026D FORTLUPTON CO
2026-07-28 983-223-5XXX 5000–5999Assigned ONVOY, LLC - CO 026D LONGMONT CO
2026-07-28 983-223-6XXX 6000–6999Assigned ONVOY, LLC - CO 026D LONGMONT CO
2026-07-28 983-226-3XXX 3000–3999Assigned ONVOY, LLC - CO 026D LONGMONT CO
2026-07-09 983-223-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - CO 078F LONGMONT CO
2026-07-09 983-800-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - CO 078F DENVER CO
2026-07-08 983-221-8XXX 8000–8999Assigned ONVOY, LLC - CO 026D DECKERS CO
2026-07-08 983-227-8XXX 8000–8999Assigned ONVOY, LLC - CO 026D FORTLUPTON CO
2026-06-29 983-800-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - CO 078F DENVER CO
2026-06-26 983-800-1XXX 1000–1999Assigned ONVOY, LLC - CO 026D DENVER CO
2026-06-26 983-800-2XXX 2000–2999Assigned ONVOY, LLC - CO 026D DENVER CO
2026-06-26 983-800-3XXX 3000–3999Assigned ONVOY, LLC - CO 026D DENVER CO
2026-06-26 983-800-4XXX 4000–4999Assigned ONVOY, LLC - CO 026D DENVER CO
2026-06-26 983-800-5XXX 5000–5999Assigned ONVOY, LLC - CO 026D DENVER CO
2026-06-26 983-800-9XXX 9000–9999Assigned ONVOY, LLC - CO 026D DENVER CO
2026-06-16 983-800-0XXX 0000–0999Assigned WIDE VOICE, LLC - CO 557H DENVER CO
2026-06-16 983-800-8XXX 8000–8999Assigned WIDE VOICE, LLC - CO 557H DENVER CO
2026-06-12 983-226-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - CO 078F LONGMONT CO
2026-06-12 983-226-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - CO 078F LONGMONT CO
2026-06-09 983-219-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 6567 DENVER CO
2026-06-09 983-233-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 6567 DENVER CO
2026-06-09 983-233-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 6567 DENVER CO
2026-06-09 983-233-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 6567 DENVER CO
2026-06-09 983-233-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 6567 DENVER CO
2026-06-09 983-233-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 6567 DENVER CO
2026-06-09 983-233-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 6567 DENVER CO
2026-06-09 983-233-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 6567 DENVER CO
2026-06-09 983-233-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 6567 DENVER CO
2026-06-09 983-233-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 6567 DENVER CO
2026-05-14 983-233-0XXX 0000–0999Assigned VOIP INNOVATIONS, LLC 597F DENVER CO
2026-05-07 983-221-1XXX 1000–1999Assigned ONVOY, LLC - CO 026D DECKERS CO

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.