NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

12 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 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
2021-11-01 531-810-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 LINCOLN NE
2021-11-01 531-810-9XXX 9000–9999Assigned AERIAL COMMUNICATIONS, INC. 6701 LINCOLN NE
2021-10-20 531-257-8XXX 8000–8999Assigned COMMIO, LLC 939H VALENTINE NE
2021-10-20 531-257-9XXX 9000–9999Assigned COMMIO, LLC 939H VALENTINE NE
2021-10-19 531-776-1XXX 1000–1999Assigned COMMIO, LLC 939H AINSWORTH NE
2021-10-19 531-776-9XXX 9000–9999Assigned COMMIO, LLC 939H AINSWORTH NE
2021-10-14 531-254-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H LINCOLN NE
2021-10-14 531-254-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H LINCOLN NE
2021-10-14 531-254-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H LINCOLN NE
2021-10-14 531-254-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H LINCOLN NE
2021-10-14 531-254-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H LINCOLN NE
2021-10-07 531-221-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H SO YANKTON NE
2021-10-07 531-252-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H CRESTON NE
2021-10-07 531-267-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H OMAHA NE
2021-10-07 531-267-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H OMAHA NE
2021-10-07 531-268-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H ATKINSON NE
2021-10-07 531-268-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H ATKINSON NE
2021-10-07 531-400-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H COLUMBUS NE
2021-10-07 531-400-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H COLUMBUS NE
2021-10-06 531-260-3XXX 3000–3999Assigned ONVOY, LLC - NE 549E NEHAWKA NE
2021-10-06 531-267-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NE 7144 OMAHA NE
2021-10-06 531-322-4XXX 4000–4999Assigned ONVOY, LLC - NE 549E CERESCO NE
2021-10-06 531-345-3XXX 3000–3999Assigned ONVOY, LLC - NE 549E LINDSAY NE
2021-10-04 531-271-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - NE 3233 O NEILL NE
2021-10-01 531-274-0XXX 0000–0999Assigned UNITED STATES CELLULAR - NE 6263 WAYNE NE
2021-09-29 531-250-8XXX 8000–8999Assigned UNITED STATES CELLULAR - NE 6263 OMAHA NE
2021-09-29 531-250-9XXX 9000–9999Assigned UNITED STATES CELLULAR - NE 6263 OMAHA NE
2021-09-27 531-250-1XXX 1000–1999Assigned AERIAL COMMUNICATIONS, INC. 6701 OMAHA NE
2021-09-27 531-250-2XXX 2000–2999Assigned AERIAL COMMUNICATIONS, INC. 6701 OMAHA NE
2021-09-27 531-250-3XXX 3000–3999Assigned AERIAL COMMUNICATIONS, INC. 6701 OMAHA NE
2021-09-27 531-250-4XXX 4000–4999Assigned AERIAL COMMUNICATIONS, INC. 6701 OMAHA NE
2021-09-27 531-263-0XXX 0000–0999Assigned AERIAL COMMUNICATIONS, INC. 6701 OMAHA NE
2021-09-27 531-263-1XXX 1000–1999Assigned AERIAL COMMUNICATIONS, INC. 6701 OMAHA NE
2021-09-17 531-209-5XXX 5000–5999Assigned COMMIO, LLC 939H BLAIR NE
2021-09-17 531-209-7XXX 7000–7999Assigned COMMIO, LLC 939H BLAIR NE
2021-09-17 531-209-8XXX 8000–8999Assigned COMMIO, LLC 939H BLAIR NE
2021-09-17 531-212-6XXX 6000–6999Assigned COMMIO, LLC 939H OAKLAND NE
2021-09-17 531-212-7XXX 7000–7999Assigned COMMIO, LLC 939H OAKLAND NE
2021-09-17 531-212-8XXX 8000–8999Assigned COMMIO, LLC 939H OAKLAND NE
2021-09-17 531-212-9XXX 9000–9999Assigned COMMIO, LLC 939H OAKLAND NE
2021-08-30 531-212-1XXX 1000–1999Assigned ONVOY, LLC - NE 549E OAKLAND NE
2021-08-26 531-345-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LINDSAY NE
2021-08-24 531-271-0XXX 0000–0999Assigned UNITED STATES CELLULAR - NE 6263 O NEILL NE
2021-08-23 531-229-2XXX 2000–2999Assigned AERIAL COMMUNICATIONS, INC. 6701 LINCOLN NE
2021-08-23 531-229-6XXX 6000–6999Assigned AERIAL COMMUNICATIONS, INC. 6701 LINCOLN NE
2021-08-23 531-248-2XXX 2000–2999Assigned AERIAL COMMUNICATIONS, INC. 6701 LINCOLN NE
2021-07-19 531-345-6XXX 6000–6999Assigned FRACTEL, LLC 965H LINDSAY NE
2021-07-19 531-356-7XXX 7000–7999Assigned FRACTEL, LLC 965H BUTTE NE
2021-07-19 531-356-9XXX 9000–9999Assigned FRACTEL, LLC 965H BUTTE NE
2021-07-07 531-910-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NE 3233 OMAHA NE

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.