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
2023-10-16 531-325-4XXX 4000–4999Assigned ONVOY, LLC - NE 549E OMAHA NE
2023-10-11 531-280-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 LINCOLN NE
2023-10-11 531-310-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 LINCOLN NE
2023-10-11 531-310-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 LINCOLN NE
2023-10-11 531-310-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 LINCOLN NE
2023-10-11 531-310-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 LINCOLN NE
2023-10-11 531-326-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 COLUMBUS NE
2023-09-28 531-280-5XXX 5000–5999Assigned METROPCS, INC. 5562 LINCOLN NE
2023-09-26 531-244-1XXX 1000–1999Assigned ONVOY, LLC - NE 549E PLATTSMTH NE
2023-09-26 531-244-2XXX 2000–2999Assigned ONVOY, LLC - NE 549E PLATTSMTH NE
2023-09-26 531-282-5XXX 5000–5999Assigned ONVOY, LLC - NE 549E BEATRICE NE
2023-09-26 531-282-6XXX 6000–6999Assigned ONVOY, LLC - NE 549E BEATRICE NE
2023-09-26 531-294-1XXX 1000–1999Assigned ONVOY, LLC - NE 549E NEBRASKACY NE
2023-09-26 531-294-2XXX 2000–2999Assigned ONVOY, LLC - NE 549E NEBRASKACY NE
2023-09-26 531-326-0XXX 0000–0999Assigned ONVOY, LLC - NE 549E COLUMBUS NE
2023-09-26 531-326-1XXX 1000–1999Assigned ONVOY, LLC - NE 549E COLUMBUS NE
2023-09-26 531-326-2XXX 2000–2999Assigned ONVOY, LLC - NE 549E COLUMBUS NE
2023-09-26 531-326-3XXX 3000–3999Assigned ONVOY, LLC - NE 549E COLUMBUS NE
2023-09-26 531-326-4XXX 4000–4999Assigned ONVOY, LLC - NE 549E COLUMBUS NE
2023-09-26 531-326-5XXX 5000–5999Assigned ONVOY, LLC - NE 549E COLUMBUS NE
2023-09-26 531-326-6XXX 6000–6999Assigned ONVOY, LLC - NE 549E COLUMBUS NE
2023-09-21 531-265-6XXX 6000–6999Assigned ONVOY, LLC - NE 549E SOSIOUX CY NE
2023-09-21 531-310-8XXX 8000–8999Assigned ONVOY, LLC - NE 549E LINCOLN NE
2023-09-14 531-270-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 OMAHA NE
2023-09-14 531-270-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 OMAHA NE
2023-09-14 531-344-0XXX 0000–0999Assigned TELNYX LLC 073H FREMONT NE
2023-09-14 531-495-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 OMAHA NE
2023-09-14 531-495-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 OMAHA NE
2023-09-14 531-495-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 OMAHA NE
2023-09-14 531-495-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 OMAHA NE
2023-09-05 531-204-1XXX 1000–1999Assigned ONVOY, LLC - NE 549E NORFOLK NE
2023-09-05 531-314-0XXX 0000–0999Assigned TELNYX LLC 073H W HAMBURG NE
2023-08-30 531-344-5XXX 5000–5999Assigned AERIAL COMMUNICATIONS, INC. 6701 FREMONT NE
2023-08-30 531-344-6XXX 6000–6999Assigned AERIAL COMMUNICATIONS, INC. 6701 FREMONT NE
2023-08-30 531-344-7XXX 7000–7999Assigned AERIAL COMMUNICATIONS, INC. 6701 FREMONT NE
2023-08-30 531-344-8XXX 8000–8999Assigned AERIAL COMMUNICATIONS, INC. 6701 FREMONT NE
2023-08-30 531-344-9XXX 9000–9999Assigned AERIAL COMMUNICATIONS, INC. 6701 FREMONT NE
2023-08-29 531-325-2XXX 2000–2999Assigned ONVOY, LLC - NE 549E OMAHA NE
2023-08-29 531-325-8XXX 8000–8999Assigned ONVOY, LLC - NE 549E OMAHA NE
2023-08-29 531-325-9XXX 9000–9999Assigned ONVOY, LLC - NE 549E OMAHA NE
2023-08-22 531-316-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 HASTINGS NE
2023-08-22 531-343-0XXX 0000–0999Assigned COMMIO, LLC 939H CRESTON NE
2023-08-22 531-343-1XXX 1000–1999Assigned COMMIO, LLC 939H CRESTON NE
2023-08-22 531-343-2XXX 2000–2999Assigned COMMIO, LLC 939H CRESTON NE
2023-08-22 531-343-3XXX 3000–3999Assigned COMMIO, LLC 939H CRESTON NE
2023-08-22 531-343-4XXX 4000–4999Assigned COMMIO, LLC 939H CRESTON NE
2023-08-21 531-345-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LINDSAY NE
2023-08-17 531-286-8XXX 8000–8999Assigned ONVOY, LLC - NE 549E OAKLAND NE
2023-08-17 531-317-0XXX 0000–0999Assigned ONVOY, LLC - NE 549E HALLAM NE
2023-08-17 531-318-0XXX 0000–0999Assigned ONVOY, LLC - NE 549E WILBER 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.