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
2021-01-30 531-256-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J OMAHA NE
2021-01-26 531-252-1XXX 1000–1999Assigned TELNYX LLC 073H CRESTON NE
2021-01-25 531-234-0XXX 0000–0999Assigned TELNYX LLC 073H NEWMAN GRV NE
2021-01-25 531-414-1XXX 1000–1999Assigned TELNYX LLC 073H MADISON NE
2021-01-25 531-625-0XXX 0000–0999Assigned TELNYX LLC 073H SOSIOUX CY NE
2021-01-20 531-209-4XXX 4000–4999Assigned GREAT PLAINS BROADBAND, INC. - NE 012E BLAIR NE
2021-01-20 531-242-4XXX 4000–4999Assigned ONVOY, LLC - NE 549E OMAHA NE
2021-01-20 531-242-5XXX 5000–5999Assigned ONVOY, LLC - NE 549E OMAHA NE
2021-01-20 531-242-6XXX 6000–6999Assigned ONVOY, LLC - NE 549E OMAHA NE
2021-01-19 531-242-9XXX 9000–9999Assigned UNITED STATES CELLULAR - NE 6263 OMAHA NE
2021-01-14 531-249-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 LINCOLN NE
2021-01-14 531-249-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 LINCOLN NE
2021-01-14 531-249-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 LINCOLN NE
2021-01-14 531-510-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 LINCOLN NE
2021-01-14 531-510-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 LINCOLN NE
2021-01-14 531-510-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 LINCOLN NE
2021-01-04 531-248-0XXX 0000–0999Assigned UNITED STATES CELLULAR - NE 6263 LINCOLN NE
2020-12-28 531-895-0XXX 0000–0999Assigned TELNYX LLC 073H OMAHA NE
2020-12-18 531-252-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NE 995E CRESTON NE
2020-12-14 531-519-6XXX 6000–6999Assigned ALLO COMMUNICATIONS LLC 907K WAYNE NE
2020-12-11 531-895-4XXX 4000–4999Assigned ONVOY, LLC - NE 549E OMAHA NE
2020-12-11 531-895-5XXX 5000–5999Assigned ONVOY, LLC - NE 549E OMAHA NE
2020-12-11 531-895-6XXX 6000–6999Assigned ONVOY, LLC - NE 549E OMAHA NE
2020-12-11 531-895-7XXX 7000–7999Assigned ONVOY, LLC - NE 549E OMAHA NE
2020-12-11 531-895-9XXX 9000–9999Assigned ONVOY, LLC - NE 549E OMAHA NE
2020-11-20 531-248-6XXX 6000–6999Assigned AERIAL COMMUNICATIONS, INC. 6701 LINCOLN NE
2020-11-20 531-248-7XXX 7000–7999Assigned AERIAL COMMUNICATIONS, INC. 6701 LINCOLN NE
2020-11-20 531-248-8XXX 8000–8999Assigned AERIAL COMMUNICATIONS, INC. 6701 LINCOLN NE
2020-11-20 531-248-9XXX 9000–9999Assigned AERIAL COMMUNICATIONS, INC. 6701 LINCOLN NE
2020-11-13 531-895-3XXX 3000–3999Assigned ONVOY, LLC - NE 549E OMAHA NE
2020-11-09 531-533-7XXX 7000–7999Assigned GLENWOOD TELECOMMUNICATIONS, INC. - NE 885E GUIDE ROCK NE
2020-11-04 531-248-3XXX 3000–3999Assigned ONVOY, LLC - NE 549E LINCOLN NE
2020-11-04 531-249-3XXX 3000–3999Assigned ONVOY, LLC - NE 549E LINCOLN NE
2020-11-04 531-249-6XXX 6000–6999Assigned ONVOY, LLC - NE 549E LINCOLN NE
2020-11-04 531-249-7XXX 7000–7999Assigned ONVOY, LLC - NE 549E LINCOLN NE
2020-10-27 531-250-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 OMAHA NE
2020-10-27 531-353-4XXX 4000–4999Assigned ONVOY, LLC - NE 549E WAHOO NE
2020-10-27 531-353-5XXX 5000–5999Assigned ONVOY, LLC - NE 549E WAHOO NE
2020-10-26 531-895-8XXX 8000–8999Assigned TWILIO INTERNATIONAL, INC. 506J OMAHA NE
2020-10-22 531-247-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 OMAHA NE
2020-10-22 531-999-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 OMAHA NE
2020-10-21 531-223-5XXX 5000–5999Assigned ONVOY, LLC - NE 549E HOWELLS NE
2020-10-21 531-234-3XXX 3000–3999Assigned ONVOY, LLC - NE 549E NEWMAN GRV NE
2020-10-21 531-237-2XXX 2000–2999Assigned ONVOY, LLC - NE 549E PENDER NE
2020-10-21 531-800-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - NE 3233 OMAHA NE
2020-10-16 531-266-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RUSKIN NE
2020-10-13 531-533-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GUIDE ROCK NE
2020-10-08 531-247-1XXX 1000–1999Assigned HD CARRIER LLC 321J OMAHA NE
2020-10-08 531-247-8XXX 8000–8999Assigned HD CARRIER LLC 321J OMAHA NE
2020-10-08 531-867-0XXX 0000–0999Assigned HD CARRIER LLC 321J OMAHA 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.