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
2019-03-08 531-535-3XXX 3000–3999Assigned ONVOY, LLC - NE 549E KENESAW NE
2019-03-06 531-228-2XXX 2000–2999Assigned ONVOY, LLC - NE 549E PLATTSMTH NE
2019-03-06 531-727-5XXX 5000–5999Assigned ONVOY, LLC - NE 549E SEWARD NE
2019-03-01 531-224-2XXX 2000–2999Assigned ONVOY, LLC - NE 549E AUBURN NE
2019-03-01 531-309-3XXX 3000–3999Assigned ONVOY, LLC - NE 549E EDGAR NE
2019-03-01 531-321-3XXX 3000–3999Assigned ONVOY, LLC - NE 549E ADAMS NE
2019-02-19 531-530-0XXX 0000–0999Assigned ONVOY, LLC - NE 549E LINCOLN NE
2019-02-19 531-530-5XXX 5000–5999Assigned ONVOY, LLC - NE 549E LINCOLN NE
2019-01-29 531-666-6XXX 6000–6999Assigned FRACTEL, LLC 965H FREMONT NE
2019-01-29 531-800-0XXX 0000–0999Assigned FRACTEL, LLC 965H OMAHA NE
2019-01-29 531-800-8XXX 8000–8999Assigned FRACTEL, LLC 965H OMAHA NE
2019-01-14 531-999-9XXX 9000–9999Assigned TERRA NOVA TELECOM INC. 145J OMAHA NE
2019-01-10 531-207-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 LINCOLN NE
2019-01-10 531-229-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 LINCOLN NE
2018-12-12 531-389-8XXX 8000–8999Assigned METROPCS, INC. 5562 OMAHA NE
2018-12-07 531-228-1XXX 1000–1999Assigned METROPCS, INC. 5562 PLATTSMTH NE
2018-12-05 531-229-7XXX 7000–7999Assigned AERIAL COMMUNICATIONS, INC. 6701 LINCOLN NE
2018-12-05 531-229-8XXX 8000–8999Assigned AERIAL COMMUNICATIONS, INC. 6701 LINCOLN NE
2018-12-05 531-229-9XXX 9000–9999Assigned AERIAL COMMUNICATIONS, INC. 6701 LINCOLN NE
2018-11-30 531-207-6XXX 6000–6999Assigned AERIAL COMMUNICATIONS, INC. 6701 LINCOLN NE
2018-11-30 531-207-7XXX 7000–7999Assigned AERIAL COMMUNICATIONS, INC. 6701 LINCOLN NE
2018-11-30 531-225-4XXX 4000–4999Assigned AERIAL COMMUNICATIONS, INC. 6701 OMAHA NE
2018-11-30 531-225-6XXX 6000–6999Assigned AERIAL COMMUNICATIONS, INC. 6701 OMAHA NE
2018-11-30 531-225-7XXX 7000–7999Assigned AERIAL COMMUNICATIONS, INC. 6701 OMAHA NE
2018-11-30 531-225-8XXX 8000–8999Assigned AERIAL COMMUNICATIONS, INC. 6701 OMAHA NE
2018-11-30 531-225-9XXX 9000–9999Assigned AERIAL COMMUNICATIONS, INC. 6701 OMAHA NE
2018-11-30 531-389-5XXX 5000–5999Assigned AERIAL COMMUNICATIONS, INC. 6701 OMAHA NE
2018-11-07 531-225-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 OMAHA NE
2018-11-07 531-225-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 OMAHA NE
2018-11-07 531-225-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 OMAHA NE
2018-11-07 531-225-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 OMAHA NE
2018-11-07 531-228-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 PLATTSMTH NE
2018-11-07 531-389-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 OMAHA NE
2018-11-07 531-389-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 OMAHA NE
2018-11-07 531-389-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 OMAHA NE
2018-10-24 531-234-5XXX 5000–5999Assigned ONVOY, LLC - NE 549E NEWMAN GRV NE
2018-10-19 531-414-4XXX 4000–4999Assigned ONVOY, LLC - NE 549E MADISON NE
2018-10-08 531-226-0XXX 0000–0999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J OMAHA NE
2018-10-08 531-226-1XXX 1000–1999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J OMAHA NE
2018-10-08 531-226-2XXX 2000–2999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J OMAHA NE
2018-10-08 531-226-3XXX 3000–3999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J OMAHA NE
2018-10-08 531-226-4XXX 4000–4999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J OMAHA NE
2018-10-08 531-226-5XXX 5000–5999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J OMAHA NE
2018-10-08 531-226-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J OMAHA NE
2018-10-08 531-226-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J OMAHA NE
2018-10-08 531-226-8XXX 8000–8999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J OMAHA NE
2018-10-08 531-226-9XXX 9000–9999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J OMAHA NE
2018-09-26 531-225-1XXX 1000–1999Assigned AIRUS, INC. - NE 478H OMAHA NE
2018-09-12 531-217-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PLATTSMTH NE
2018-09-12 531-459-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 UTICA 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.