NumberResearch Membership · Data 09/26/2026

Recent thousands-block assignments

0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/26/2026

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, all time — NPA 571
CORETEL VIRGINIA, LLC - VA 41
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
2019-07-16 571-360-7XXX 7000–7999Assigned CORETEL VIRGINIA, LLC - VA 5832 INDENDNTHL VA
2019-07-16 571-360-8XXX 8000–8999Assigned CORETEL VIRGINIA, LLC - VA 5832 INDENDNTHL VA
2019-07-16 571-559-5XXX 5000–5999Assigned CORETEL VIRGINIA, LLC - VA 5832 ENGLESIDE VA
2019-07-16 571-559-9XXX 9000–9999Assigned CORETEL VIRGINIA, LLC - VA 5832 ENGLESIDE VA
2019-07-16 571-666-7XXX 7000–7999Assigned CORETEL VIRGINIA, LLC - VA 5832 WSNGTNZN17 VA
2019-05-10 571-404-7XXX 7000–7999Assigned CORETEL VIRGINIA, LLC - VA 5832 BRADDOCK VA
2019-05-10 571-404-8XXX 8000–8999Assigned CORETEL VIRGINIA, LLC - VA 5832 BRADDOCK VA
2019-05-10 571-493-2XXX 2000–2999Assigned CORETEL VIRGINIA, LLC - VA 5832 DALE CITY VA
2019-05-10 571-493-6XXX 6000–6999Assigned CORETEL VIRGINIA, LLC - VA 5832 DALE CITY VA
2019-05-10 571-493-7XXX 7000–7999Assigned CORETEL VIRGINIA, LLC - VA 5832 DALE CITY VA
2019-03-12 571-536-3XXX 3000–3999Assigned CORETEL VIRGINIA, LLC - VA 5832 WSNGTNZN19 VA
2019-03-12 571-697-6XXX 6000–6999Assigned CORETEL VIRGINIA, LLC - VA 5832 TRIANGLE VA
2019-03-12 571-842-5XXX 5000–5999Assigned CORETEL VIRGINIA, LLC - VA 5832 WSNGTNZN08 VA
2019-03-05 571-347-4XXX 4000–4999Assigned CORETEL VIRGINIA, LLC - VA 5832 WSNGTNZN08 VA
2019-03-05 571-347-5XXX 5000–5999Assigned CORETEL VIRGINIA, LLC - VA 5832 WSNGTNZN08 VA
2019-03-05 571-347-6XXX 6000–6999Assigned CORETEL VIRGINIA, LLC - VA 5832 WSNGTNZN08 VA
2019-03-04 571-336-3XXX 3000–3999Assigned CORETEL VIRGINIA, LLC - VA 5832 ENGLESIDE VA
2019-03-04 571-336-9XXX 9000–9999Assigned CORETEL VIRGINIA, LLC - VA 5832 ENGLESIDE VA
2019-03-04 571-642-8XXX 8000–8999Assigned CORETEL VIRGINIA, LLC - VA 5832 ENGLESIDE VA
2019-03-01 571-360-9XXX 9000–9999Assigned CORETEL VIRGINIA, LLC - VA 5832 INDENDNTHL VA
2018-06-28 571-360-0XXX 0000–0999Assigned CORETEL VIRGINIA, LLC - VA 5832 INDENDNTHL VA
2018-06-28 571-360-1XXX 1000–1999Assigned CORETEL VIRGINIA, LLC - VA 5832 INDENDNTHL VA
2018-06-28 571-360-2XXX 2000–2999Assigned CORETEL VIRGINIA, LLC - VA 5832 INDENDNTHL VA
2018-06-28 571-370-0XXX 0000–0999Assigned CORETEL VIRGINIA, LLC - VA 5832 ARCOLA VA
2018-06-28 571-370-1XXX 1000–1999Assigned CORETEL VIRGINIA, LLC - VA 5832 ARCOLA VA
2018-06-28 571-370-2XXX 2000–2999Assigned CORETEL VIRGINIA, LLC - VA 5832 ARCOLA VA
2018-06-28 571-380-0XXX 0000–0999Assigned CORETEL VIRGINIA, LLC - VA 5832 LORTON VA
2018-06-28 571-380-1XXX 1000–1999Assigned CORETEL VIRGINIA, LLC - VA 5832 LORTON VA
2018-06-28 571-380-2XXX 2000–2999Assigned CORETEL VIRGINIA, LLC - VA 5832 LORTON VA
2018-06-28 571-390-0XXX 0000–0999Assigned CORETEL VIRGINIA, LLC - VA 5832 NOKESVILLE VA
2018-06-28 571-390-1XXX 1000–1999Assigned CORETEL VIRGINIA, LLC - VA 5832 NOKESVILLE VA
2018-06-28 571-390-2XXX 2000–2999Assigned CORETEL VIRGINIA, LLC - VA 5832 NOKESVILLE VA
2018-06-19 571-427-9XXX 9000–9999Assigned CORETEL VIRGINIA, LLC - VA 5832 OCCOQUAN VA
2018-05-21 571-932-7XXX 7000–7999Assigned CORETEL VIRGINIA, LLC - VA 5832 LORTONMTRO VA
2009-03-20 571-402-0XXX 0000–0999Assigned CORETEL VIRGINIA, LLC - VA 5832 DALE CITY VA
2009-03-17 571-222-3XXX 3000–3999Assigned CORETEL VIRGINIA, LLC - VA 5832 HAYMARKET VA
2009-03-17 571-286-3XXX 3000–3999Assigned CORETEL VIRGINIA, LLC - VA 5832 WSNGTNZN17 VA
2009-03-17 571-408-7XXX 7000–7999Assigned CORETEL VIRGINIA, LLC - VA 5832 OCCOQUAN VA
2009-03-17 571-932-2XXX 2000–2999Assigned CORETEL VIRGINIA, LLC - VA 5832 LORTONMTRO VA
2009-03-17 571-933-2XXX 2000–2999Assigned CORETEL VIRGINIA, LLC - VA 5832 DULLESMTRO VA
2004-09-24 571-271-0XXX 0000–0999Assigned CORETEL VIRGINIA, LLC - VA 5832 LEESBURG VA

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/26/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.