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
2017-10-30 531-214-1XXX 1000–1999Assigned ONVOY, LLC - NE 549E PILGER NE
2017-10-18 531-375-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J OMAHA NE
2017-10-04 531-365-8XXX 8000–8999Assigned ONVOY, LLC - NE 549E OMAHA NE
2017-09-29 531-207-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - NE 3233 LINCOLN NE
2017-09-25 531-309-1XXX 1000–1999Assigned GLENWOOD TELECOMMUNICATIONS, INC. - NE 885E EDGAR NE
2017-09-15 531-365-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NE 7144 OMAHA NE
2017-08-24 531-233-0XXX 0000–0999Assigned ONVOY, LLC - NE 549E OMAHA NE
2017-08-24 531-233-1XXX 1000–1999Assigned ONVOY, LLC - NE 549E OMAHA NE
2017-08-24 531-233-2XXX 2000–2999Assigned ONVOY, LLC - NE 549E OMAHA NE
2017-08-24 531-233-3XXX 3000–3999Assigned ONVOY, LLC - NE 549E OMAHA NE
2017-08-24 531-233-4XXX 4000–4999Assigned ONVOY, LLC - NE 549E OMAHA NE
2017-08-24 531-233-5XXX 5000–5999Assigned ONVOY, LLC - NE 549E OMAHA NE
2017-08-17 531-219-9XXX 9000–9999Assigned AT&T - LOCAL 7421 FREMONT NE
2017-08-11 531-207-0XXX 0000–0999Assigned TWC IP ENABLED SERVICES, LLC 793K LINCOLN NE
2017-08-10 531-459-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 UTICA NE
2017-08-10 531-459-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 UTICA NE
2017-07-27 531-375-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NE 7144 OMAHA NE
2017-07-19 531-218-2XXX 2000–2999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LINCOLN NE
2017-07-07 531-210-2XXX 2000–2999Assigned AERIAL COMMUNICATIONS, INC. 6701 OMAHA NE
2017-07-07 531-210-5XXX 5000–5999Assigned AERIAL COMMUNICATIONS, INC. 6701 OMAHA NE
2017-07-07 531-777-4XXX 4000–4999Assigned AERIAL COMMUNICATIONS, INC. 6701 OMAHA NE
2017-07-07 531-777-6XXX 6000–6999Assigned AERIAL COMMUNICATIONS, INC. 6701 OMAHA NE
2017-06-29 531-218-0XXX 0000–0999Assigned TWC IP ENABLED SERVICES, LLC 793K LINCOLN NE
2017-06-20 531-218-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - NE 3233 LINCOLN NE
2017-05-23 531-375-2XXX 2000–2999Assigned ONVOY, LLC - NE 549E OMAHA NE
2017-05-03 531-215-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 OMAHA NE
2017-05-03 531-721-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 OMAHA NE
2017-05-03 531-777-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 OMAHA NE
2017-05-03 531-777-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 OMAHA NE
2017-05-03 531-777-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 OMAHA NE
2017-05-02 531-215-8XXX 8000–8999Assigned AUREON COMMUNICATIONS, LLC 444G OMAHA NE
2017-05-01 531-208-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ATKINSON NE
2017-04-10 531-218-3XXX 3000–3999Assigned METROPCS, INC. 5562 LINCOLN NE
2017-04-10 531-220-2XXX 2000–2999Assigned METROPCS, INC. 5562 LINCOLN NE
2017-04-10 531-259-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 BRISTOW NE
2017-04-10 531-259-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 BRISTOW NE
2017-04-10 531-259-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 BRISTOW NE
2017-04-10 531-259-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 BRISTOW NE
2017-04-10 531-259-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 BRISTOW NE
2017-04-10 531-259-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 BRISTOW NE
2017-04-10 531-259-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 BRISTOW NE
2017-04-10 531-259-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 BRISTOW NE
2017-04-10 531-259-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 BRISTOW NE
2017-04-10 531-259-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 BRISTOW NE
2017-03-27 531-218-4XXX 4000–4999Assigned AERIAL COMMUNICATIONS, INC. 6701 LINCOLN NE
2017-03-27 531-218-5XXX 5000–5999Assigned AERIAL COMMUNICATIONS, INC. 6701 LINCOLN NE
2017-03-27 531-218-6XXX 6000–6999Assigned AERIAL COMMUNICATIONS, INC. 6701 LINCOLN NE
2017-03-27 531-218-7XXX 7000–7999Assigned AERIAL COMMUNICATIONS, INC. 6701 LINCOLN NE
2017-03-27 531-218-8XXX 8000–8999Assigned AERIAL COMMUNICATIONS, INC. 6701 LINCOLN NE
2017-03-27 531-218-9XXX 9000–9999Assigned AERIAL COMMUNICATIONS, INC. 6701 LINCOLN 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.