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
2023-06-13 531-666-3XXX 3000–3999Assigned AERIAL COMMUNICATIONS, INC. 6701 FREMONT NE
2023-06-13 531-666-4XXX 4000–4999Assigned AERIAL COMMUNICATIONS, INC. 6701 FREMONT NE
2023-05-31 531-325-1XXX 1000–1999Assigned ONVOY, LLC - NE 549E OMAHA NE
2023-05-25 531-293-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 SCHUYLER NE
2023-04-20 531-283-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OMAHA NE
2023-04-20 531-283-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OMAHA NE
2023-04-20 531-283-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OMAHA NE
2023-04-20 531-284-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OMAHA NE
2023-04-20 531-284-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OMAHA NE
2023-04-20 531-284-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OMAHA NE
2023-04-20 531-284-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OMAHA NE
2023-04-20 531-284-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OMAHA NE
2023-04-20 531-324-1XXX 1000–1999Assigned NUSO, LLC 732J LINCOLN NE
2023-04-20 531-484-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OMAHA NE
2023-04-20 531-495-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OMAHA NE
2023-04-19 531-284-4XXX 4000–4999Assigned NUSO, LLC 732J OMAHA NE
2023-04-12 531-286-0XXX 0000–0999Assigned TELNYX LLC 073H OAKLAND NE
2023-04-12 531-295-0XXX 0000–0999Assigned TELNYX LLC 073H LAUREL NE
2023-04-12 531-317-3XXX 3000–3999Assigned ONVOY, LLC - NE 549E HALLAM NE
2023-04-12 531-318-1XXX 1000–1999Assigned ONVOY, LLC - NE 549E WILBER NE
2023-04-12 531-319-2XXX 2000–2999Assigned ONVOY, LLC - NE 549E DAVENPORT NE
2023-04-12 531-320-4XXX 4000–4999Assigned ONVOY, LLC - NE 549E GRAFTON NE
2023-04-12 531-323-5XXX 5000–5999Assigned ONVOY, LLC - NE 549E JULIAN NE
2023-04-11 531-265-4XXX 4000–4999Assigned ONVOY, LLC - NE 549E SOSIOUX CY NE
2023-04-11 531-510-9XXX 9000–9999Assigned ONVOY, LLC - NE 549E LINCOLN NE
2023-04-11 531-893-7XXX 7000–7999Assigned ONVOY, LLC - NE 549E LINCOLN NE
2023-04-11 531-893-9XXX 9000–9999Assigned ONVOY, LLC - NE 549E LINCOLN NE
2023-04-04 531-265-2XXX 2000–2999Assigned BOOST SUBSCRIBERCO L.L.C. 490J SOSIOUX CY NE
2023-03-22 531-219-1XXX 1000–1999Assigned AERIAL COMMUNICATIONS, INC. 6701 FREMONT NE
2023-03-22 531-219-3XXX 3000–3999Assigned AERIAL COMMUNICATIONS, INC. 6701 FREMONT NE
2023-03-22 531-269-4XXX 4000–4999Assigned AERIAL COMMUNICATIONS, INC. 6701 NORFOLK NE
2023-03-22 531-269-5XXX 5000–5999Assigned AERIAL COMMUNICATIONS, INC. 6701 NORFOLK NE
2023-03-14 531-316-1XXX 1000–1999Assigned NUSO, LLC 732J HASTINGS NE
2023-03-10 531-217-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 PLATTSMTH NE
2023-03-07 531-330-0XXX 0000–0999Assigned COMMIO, LLC 939H WAYNE NE
2023-03-02 531-305-5XXX 5000–5999Assigned ALLO COMMUNICATIONS LLC 907K HICKMAN NE
2023-03-02 531-331-1XXX 1000–1999Assigned ALLO COMMUNICATIONS LLC 907K MARTELL NE
2023-02-15 531-314-2XXX 2000–2999Assigned ONVOY, LLC - NE 549E W HAMBURG NE
2023-02-14 531-283-7XXX 7000–7999Assigned ONVOY, LLC - NE 549E OMAHA NE
2023-02-10 531-400-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - NE 3233 COLUMBUS NE
2023-02-07 531-533-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - NE 3233 GUIDE ROCK NE
2023-01-24 531-283-5XXX 5000–5999Assigned GREAT PLAINS BROADBAND, INC. - NE 012E OMAHA NE
2023-01-23 531-288-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NE 7144 MADISON NE
2023-01-18 531-315-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - NE 3233 BLAIR NE
2023-01-12 531-495-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OMAHA NE
2023-01-12 531-495-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OMAHA NE
2023-01-10 531-269-6XXX 6000–6999Assigned UNITED STATES CELLULAR - NE 6263 NORFOLK NE
2023-01-03 531-307-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - NE 3233 HOMER NE
2023-01-03 531-314-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - NE 3233 W HAMBURG NE
2022-12-30 531-252-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - NE 3233 CRESTON 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.