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
2016-09-09 531-721-4XXX 4000–4999Assigned AERIAL COMMUNICATIONS, INC. 6701 OMAHA NE
2016-09-09 531-721-5XXX 5000–5999Assigned AERIAL COMMUNICATIONS, INC. 6701 OMAHA NE
2016-09-09 531-721-6XXX 6000–6999Assigned AERIAL COMMUNICATIONS, INC. 6701 OMAHA NE
2016-08-19 531-210-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 OMAHA NE
2016-08-12 531-205-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 OMAHA NE
2016-08-12 531-205-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 OMAHA NE
2016-08-11 531-205-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NE 995E OMAHA NE
2016-08-03 531-210-0XXX 0000–0999Assigned AERIAL COMMUNICATIONS, INC. 6701 OMAHA NE
2016-08-03 531-210-1XXX 1000–1999Assigned AERIAL COMMUNICATIONS, INC. 6701 OMAHA NE
2016-08-03 531-210-7XXX 7000–7999Assigned AERIAL COMMUNICATIONS, INC. 6701 OMAHA NE
2016-08-03 531-210-8XXX 8000–8999Assigned AERIAL COMMUNICATIONS, INC. 6701 OMAHA NE
2016-08-03 531-721-8XXX 8000–8999Assigned AERIAL COMMUNICATIONS, INC. 6701 OMAHA NE
2016-08-03 531-721-9XXX 9000–9999Assigned AERIAL COMMUNICATIONS, INC. 6701 OMAHA NE
2016-07-20 531-220-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - NE 995E LINCOLN NE
2016-07-07 531-220-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 LINCOLN NE
2016-07-07 531-721-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 OMAHA NE
2016-07-07 531-721-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 OMAHA NE
2016-07-07 531-721-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 OMAHA NE
2016-06-29 531-329-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J OMAHA NE
2016-06-29 531-329-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J OMAHA NE
2016-06-27 531-200-9XXX 9000–9999Assigned ONVOY, LLC - NE 549E OMAHA NE
2016-06-27 531-329-2XXX 2000–2999Assigned ONVOY, LLC - NE 549E OMAHA NE
2016-06-24 531-220-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NE 995E LINCOLN NE
2016-06-24 531-329-5XXX 5000–5999Assigned AERIAL COMMUNICATIONS, INC. 6701 OMAHA NE
2016-06-24 531-329-7XXX 7000–7999Assigned AERIAL COMMUNICATIONS, INC. 6701 OMAHA NE
2016-06-24 531-329-9XXX 9000–9999Assigned AERIAL COMMUNICATIONS, INC. 6701 OMAHA NE
2016-06-06 531-222-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J OMAHA NE
2016-06-06 531-222-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J OMAHA NE
2016-06-03 531-222-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 OMAHA NE
2016-06-03 531-222-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 OMAHA NE
2016-06-03 531-222-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 OMAHA NE
2016-06-03 531-222-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 OMAHA NE
2016-06-01 531-500-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - NE 3233 LINCOLN NE
2016-05-31 531-500-6XXX 6000–6999Assigned TWC IP ENABLED SERVICES, LLC 793K LINCOLN NE
2016-05-24 531-300-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CRESTON NE
2016-05-24 531-571-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WAKEFIELD NE
2016-05-10 531-210-9XXX 9000–9999Assigned AERIAL COMMUNICATIONS, INC. 6701 OMAHA NE
2016-04-28 531-222-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 OMAHA NE
2016-04-27 531-721-2XXX 2000–2999Assigned GREAT PLAINS BROADBAND, INC. - NE 012E OMAHA NE
2016-04-26 531-222-0XXX 0000–0999Assigned UNITED STATES CELLULAR - NE 6263 OMAHA NE
2016-04-26 531-222-1XXX 1000–1999Assigned UNITED STATES CELLULAR - NE 6263 OMAHA NE
2016-04-12 531-500-0XXX 0000–0999Assigned ALLO COMMUNICATIONS LLC 907K LINCOLN NE
2016-04-12 531-500-1XXX 1000–1999Assigned ALLO COMMUNICATIONS LLC 907K LINCOLN NE
2016-04-12 531-500-2XXX 2000–2999Assigned ALLO COMMUNICATIONS LLC 907K LINCOLN NE
2016-04-12 531-500-3XXX 3000–3999Assigned ALLO COMMUNICATIONS LLC 907K LINCOLN NE
2016-04-12 531-500-4XXX 4000–4999Assigned ALLO COMMUNICATIONS LLC 907K LINCOLN NE
2016-04-12 531-500-5XXX 5000–5999Assigned ALLO COMMUNICATIONS LLC 907K LINCOLN NE
2016-04-12 531-739-1XXX 1000–1999Assigned UNITED STATES CELLULAR - NE 6263 LINCOLN NE
2016-04-06 531-200-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J OMAHA NE
2016-04-06 531-200-6XXX 6000–6999Assigned ONVOY, LLC - NE 549E 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.