NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

3 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
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
2026-09-09 531-370-1XXX 1000–1999Assigned ONVOY, LLC - NE 549E FREMONT NE
2026-09-09 531-371-8XXX 8000–8999Assigned ONVOY, LLC - NE 549E NORFOLK NE
2026-09-09 531-371-9XXX 9000–9999Assigned ONVOY, LLC - NE 549E NORFOLK NE
2026-08-19 531-530-4XXX 4000–4999Assigned ONVOY, LLC - NE 549E LINCOLN NE
2026-08-06 531-810-4XXX 4000–4999Assigned ONVOY, LLC - NE 549E LINCOLN NE
2026-08-06 531-810-5XXX 5000–5999Assigned ONVOY, LLC - NE 549E LINCOLN NE
2026-08-06 531-810-6XXX 6000–6999Assigned ONVOY, LLC - NE 549E LINCOLN NE
2026-08-06 531-810-7XXX 7000–7999Assigned ONVOY, LLC - NE 549E LINCOLN NE
2026-07-30 531-361-2XXX 2000–2999Assigned ONVOY, LLC - NE 549E FREMONT NE
2026-04-27 531-363-7XXX 7000–7999Assigned ONVOY, LLC - NE 549E LINCOLN NE
2025-11-05 531-363-9XXX 9000–9999Assigned ONVOY, LLC - NE 549E LINCOLN NE
2025-09-24 531-430-0XXX 0000–0999Assigned ONVOY, LLC - NE 549E OMAHA NE
2025-09-24 531-430-1XXX 1000–1999Assigned ONVOY, LLC - NE 549E OMAHA NE
2025-09-24 531-430-2XXX 2000–2999Assigned ONVOY, LLC - NE 549E OMAHA NE
2025-09-24 531-985-8XXX 8000–8999Assigned ONVOY, LLC - NE 549E OMAHA NE
2025-09-24 531-985-9XXX 9000–9999Assigned ONVOY, LLC - NE 549E OMAHA NE
2025-09-03 531-795-0XXX 0000–0999Assigned ONVOY, LLC - NE 549E LINCOLN NE
2025-09-03 531-795-1XXX 1000–1999Assigned ONVOY, LLC - NE 549E LINCOLN NE
2025-08-14 531-352-8XXX 8000–8999Assigned ONVOY, LLC - NE 549E OMAHA NE
2025-08-14 531-352-9XXX 9000–9999Assigned ONVOY, LLC - NE 549E OMAHA NE
2025-04-16 531-396-0XXX 0000–0999Assigned ONVOY, LLC - NE 549E LINCOLN NE
2025-04-08 531-395-0XXX 0000–0999Assigned ONVOY, LLC - NE 549E OMAHA NE
2025-03-13 531-244-8XXX 8000–8999Assigned ONVOY, LLC - NE 549E PLATTSMTH NE
2025-03-13 531-349-6XXX 6000–6999Assigned ONVOY, LLC - NE 549E SOSIOUX CY NE
2025-02-12 531-349-7XXX 7000–7999Assigned ONVOY, LLC - NE 549E SOSIOUX CY NE
2025-02-06 531-371-0XXX 0000–0999Assigned ONVOY, LLC - NE 549E NORFOLK NE
2025-02-06 531-372-0XXX 0000–0999Assigned ONVOY, LLC - NE 549E OMAHA NE
2025-01-09 531-228-9XXX 9000–9999Assigned ONVOY, LLC - NE 549E PLATTSMTH NE
2025-01-09 531-280-6XXX 6000–6999Assigned ONVOY, LLC - NE 549E LINCOLN NE
2025-01-09 531-348-8XXX 8000–8999Assigned ONVOY, LLC - NE 549E COLUMBUS NE
2025-01-09 531-349-4XXX 4000–4999Assigned ONVOY, LLC - NE 549E SOSIOUX CY NE
2025-01-09 531-810-2XXX 2000–2999Assigned ONVOY, LLC - NE 549E LINCOLN NE
2024-11-19 531-349-3XXX 3000–3999Assigned ONVOY, LLC - NE 549E SOSIOUX CY NE
2024-10-10 531-349-8XXX 8000–8999Assigned ONVOY, LLC - NE 549E SOSIOUX CY NE
2024-09-11 531-349-1XXX 1000–1999Assigned ONVOY, LLC - NE 549E SOSIOUX CY NE
2024-08-01 531-285-2XXX 2000–2999Assigned ONVOY, LLC - NE 549E SHICKLEY NE
2024-08-01 531-349-0XXX 0000–0999Assigned ONVOY, LLC - NE 549E SOSIOUX CY NE
2024-07-05 531-204-4XXX 4000–4999Assigned ONVOY, LLC - NE 549E NORFOLK NE
2024-07-05 531-228-8XXX 8000–8999Assigned ONVOY, LLC - NE 549E PLATTSMTH NE
2024-06-14 531-265-1XXX 1000–1999Assigned ONVOY, LLC - NE 549E SOSIOUX CY NE
2024-06-05 531-316-0XXX 0000–0999Assigned ONVOY, LLC - NE 549E HASTINGS NE
2024-06-05 531-366-5XXX 5000–5999Assigned ONVOY, LLC - NE 549E OMAHA NE
2024-06-05 531-366-6XXX 6000–6999Assigned ONVOY, LLC - NE 549E OMAHA NE
2024-06-05 531-366-7XXX 7000–7999Assigned ONVOY, LLC - NE 549E OMAHA NE
2024-06-05 531-366-8XXX 8000–8999Assigned ONVOY, LLC - NE 549E OMAHA NE
2024-06-05 531-366-9XXX 9000–9999Assigned ONVOY, LLC - NE 549E OMAHA NE
2024-06-05 531-666-9XXX 9000–9999Assigned ONVOY, LLC - NE 549E FREMONT NE
2024-05-30 531-366-2XXX 2000–2999Assigned ONVOY, LLC - NE 549E OMAHA NE
2024-03-26 531-366-0XXX 0000–0999Assigned ONVOY, LLC - NE 549E OMAHA NE
2024-03-26 531-366-1XXX 1000–1999Assigned ONVOY, LLC - NE 549E 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.