NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

43 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 571
BANDWIDTH.COM CLEC, LLC - VA 11
ONVOY, LLC - VA 10
OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 7
NEW CINGULAR WIRELESS PCS, LLC - DC 6
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6
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
2025-03-19 571-702-6XXX 6000–6999Assigned ONVOY, LLC - VA 138E DALE CITY VA
2025-03-19 571-702-7XXX 7000–7999Assigned ONVOY, LLC - VA 138E DALE CITY VA
2025-03-19 571-702-8XXX 8000–8999Assigned ONVOY, LLC - VA 138E DALE CITY VA
2025-03-19 571-702-9XXX 9000–9999Assigned ONVOY, LLC - VA 138E DALE CITY VA
2025-03-19 571-720-0XXX 0000–0999Assigned ONVOY, LLC - VA 138E HERNDON VA
2025-03-18 571-571-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F LEESBURG VA
2025-03-18 571-571-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F LEESBURG VA
2025-03-17 571-715-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F HERNDON VA
2025-03-14 571-625-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F TRIANGLE VA
2025-03-14 571-713-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F OCCOQUAN VA
2025-03-11 571-788-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F HAYMARKET VA
2025-03-03 571-301-3XXX 3000–3999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 WSNGTNZN19 VA
2025-03-03 571-712-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F LEESBURG VA
2025-02-28 571-718-9XXX 9000–9999Assigned AT&T - LOCAL 7421 ENGLESIDE VA
2025-02-27 571-681-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F WSNGTNZN19 VA
2025-02-27 571-682-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F WSNGTNZN19 VA
2025-02-20 571-716-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F MANASSAS VA
2025-02-20 571-716-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F MANASSAS VA
2025-02-18 571-713-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F OCCOQUAN VA
2025-02-13 571-626-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F TRIANGLE VA
2025-02-13 571-713-5XXX 5000–5999Assigned ONVOY, LLC - VA 138E OCCOQUAN VA
2025-02-13 571-715-2XXX 2000–2999Assigned ONVOY, LLC - VA 138E HERNDON VA
2025-02-13 571-717-8XXX 8000–8999Assigned ONVOY, LLC - VA 138E WSNGTNZN17 VA
2025-02-11 571-755-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F HAYMARKET VA
2025-02-10 571-717-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F WSNGTNZN17 VA
2025-02-10 571-717-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F WSNGTNZN17 VA
2025-02-07 571-674-4XXX 4000–4999Assigned ONVOY, LLC - VA 138E BRADDOCK VA
2025-02-07 571-712-8XXX 8000–8999Assigned ONVOY, LLC - VA 138E LEESBURG VA
2025-02-07 571-712-9XXX 9000–9999Assigned ONVOY, LLC - VA 138E LEESBURG VA
2025-02-07 571-716-0XXX 0000–0999Assigned ONVOY, LLC - VA 138E MANASSAS VA
2025-01-30 571-705-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 WSNGTNZN17 VA
2025-01-30 571-705-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 WSNGTNZN17 VA
2025-01-30 571-705-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 WSNGTNZN17 VA
2025-01-30 571-705-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 WSNGTNZN17 VA
2025-01-27 571-714-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - DC 7529 WSNGTNZN08 VA
2025-01-27 571-714-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - DC 7529 WSNGTNZN08 VA
2025-01-24 571-702-0XXX 0000–0999Assigned TELNYX LLC 073H DALE CITY VA
2025-01-23 571-696-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - DC 7529 ENGLESIDE VA
2025-01-23 571-696-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - DC 7529 ENGLESIDE VA
2025-01-16 571-698-0XXX 0000–0999Assigned TELNYX LLC 073H ARCOLA VA
2025-01-14 571-301-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 WSNGTNZN19 VA
2025-01-14 571-301-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 WSNGTNZN19 VA
2025-01-14 571-301-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 WSNGTNZN19 VA
2025-01-14 571-301-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 WSNGTNZN19 VA
2025-01-14 571-632-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 MANASSAS VA
2025-01-14 571-713-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 OCCOQUAN VA
2025-01-14 571-715-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 HERNDON VA
2025-01-14 571-715-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 HERNDON VA
2025-01-14 571-715-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 HERNDON VA
2025-01-14 571-715-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 HERNDON VA

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.