NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

12 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 531
ONVOY, LLC - NE 3
MIDSTATES DATA TRANSPORT, LLC - NE 2
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 2
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
2015-11-17 531-205-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 OMAHA NE
2015-11-10 531-205-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 OMAHA NE
2015-11-10 531-205-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 OMAHA NE
2015-11-05 531-329-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 OMAHA NE
2015-11-05 531-329-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 OMAHA NE
2015-11-05 531-333-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 LINCOLN NE
2015-11-04 531-329-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - NE 3233 OMAHA NE
2015-10-20 531-329-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 OMAHA NE
2015-10-20 531-727-2XXX 2000–2999Assigned GREAT PLAINS BROADBAND, INC. - NE 012E SEWARD NE
2015-10-05 531-203-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 OMAHA NE
2015-10-05 531-203-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 OMAHA NE
2015-09-29 531-203-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - NE 3233 OMAHA NE
2015-09-14 531-289-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K LINCOLN NE
2015-09-14 531-289-7XXX 7000–7999Assigned TWC IP ENABLED SERVICES, LLC 793K LINCOLN NE
2015-09-01 531-203-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - NE 3233 OMAHA NE
2015-08-31 531-309-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NE 995E EDGAR NE
2015-08-27 531-203-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OMAHA NE
2015-08-27 531-203-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OMAHA NE
2015-08-27 531-203-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OMAHA NE
2015-08-27 531-203-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OMAHA NE
2015-08-20 531-289-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 LINCOLN NE
2015-08-13 531-203-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 OMAHA NE
2015-08-13 531-203-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 OMAHA NE
2015-08-10 531-289-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LINCOLN NE
2015-08-10 531-289-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LINCOLN NE
2015-08-10 531-600-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J OMAHA NE
2015-08-05 531-289-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - NE 3233 LINCOLN NE
2015-07-23 531-600-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - NE 3233 OMAHA NE
2015-07-08 531-289-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - NE 3233 LINCOLN NE
2015-06-25 531-600-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 OMAHA NE
2015-05-28 531-739-3XXX 3000–3999Assigned TWC IP ENABLED SERVICES, LLC 793K LINCOLN NE
2015-05-28 531-739-5XXX 5000–5999Assigned TWC IP ENABLED SERVICES, LLC 793K LINCOLN NE
2015-05-08 531-739-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LINCOLN NE
2015-04-10 531-333-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NE 995E LINCOLN NE
2015-04-10 531-333-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - NE 995E LINCOLN NE
2015-04-10 531-333-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - NE 995E LINCOLN NE
2015-04-10 531-333-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - NE 995E LINCOLN NE
2015-04-10 531-600-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NE 995E OMAHA NE
2015-04-10 531-600-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NE 995E OMAHA NE
2015-04-10 531-600-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NE 995E OMAHA NE
2015-04-10 531-600-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - NE 995E OMAHA NE
2015-04-10 531-600-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - NE 995E OMAHA NE
2015-04-10 531-600-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - NE 995E OMAHA NE
2015-04-07 531-333-0XXX 0000–0999Assigned AERIAL COMMUNICATIONS, INC. 6701 LINCOLN NE
2015-04-07 531-333-1XXX 1000–1999Assigned AERIAL COMMUNICATIONS, INC. 6701 LINCOLN NE
2015-04-07 531-333-8XXX 8000–8999Assigned AERIAL COMMUNICATIONS, INC. 6701 LINCOLN NE
2015-04-07 531-333-9XXX 9000–9999Assigned AERIAL COMMUNICATIONS, INC. 6701 LINCOLN NE
2015-04-02 531-444-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J OMAHA NE
2015-04-02 531-444-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J OMAHA NE
2015-04-02 531-444-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J OMAHA NE

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.