NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

43 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 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
2026-04-24 571-753-9XXX 9000–9999Assigned ONVOY, LLC - VA 138E BRADDOCK VA
2026-04-24 571-756-0XXX 0000–0999Assigned ONVOY, LLC - VA 138E HAYMARKET VA
2026-04-24 571-756-1XXX 1000–1999Assigned ONVOY, LLC - VA 138E HAYMARKET VA
2026-04-24 571-850-1XXX 1000–1999Assigned ONVOY, LLC - VA 138E LEESBURG VA
2026-04-14 571-463-5XXX 5000–5999Assigned ONVOY, LLC - VA 138E ARCOLA VA
2026-04-14 571-625-9XXX 9000–9999Assigned ONVOY, LLC - VA 138E TRIANGLE VA
2026-04-09 571-720-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F HERNDON VA
2026-04-08 571-727-4XXX 4000–4999Assigned ONVOY, LLC - VA 138E LORTON VA
2026-04-08 571-747-8XXX 8000–8999Assigned ONVOY, LLC - VA 138E MANASSAS VA
2026-04-08 571-901-8XXX 8000–8999Assigned ONVOY, LLC - VA 138E ENGLESIDE VA
2026-04-02 571-750-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F WSNGTNZN08 VA
2026-04-02 571-750-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F WSNGTNZN08 VA
2026-04-02 571-750-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F WSNGTNZN08 VA
2026-04-01 571-754-2XXX 2000–2999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J WSNGTNZN08 VA
2026-03-30 571-724-6XXX 6000–6999Assigned EXIANT COMMUNICATIONS LLC 114J OCCOQUAN VA
2026-03-26 571-747-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - DC 7529 MANASSAS VA
2026-03-18 571-750-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F WSNGTNZN08 VA
2026-03-11 571-636-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 HAYMARKET VA
2026-03-11 571-708-2XXX 2000–2999Assigned ONVOY, LLC - VA 138E DALE CITY VA
2026-03-04 571-726-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN08 VA
2026-03-04 571-903-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN08 VA
2026-03-04 571-903-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN08 VA
2026-03-04 571-903-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN08 VA
2026-03-04 571-903-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN08 VA
2026-03-04 571-903-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN08 VA
2026-03-04 571-903-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN08 VA
2026-03-04 571-903-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN08 VA
2026-03-04 571-903-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN08 VA
2026-03-04 571-903-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN08 VA
2026-02-27 571-743-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 HERNDON VA
2026-02-27 571-743-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 HERNDON VA
2026-02-26 571-301-4XXX 4000–4999Assigned ONVOY, LLC - VA 138E WSNGTNZN19 VA
2026-02-26 571-625-1XXX 1000–1999Assigned ONVOY, LLC - VA 138E TRIANGLE VA
2026-02-26 571-739-5XXX 5000–5999Assigned ONVOY, LLC - VA 138E WSNGTNZN08 VA
2026-02-26 571-740-2XXX 2000–2999Assigned ONVOY, LLC - VA 138E WSNGTNZN19 VA
2026-02-26 571-740-3XXX 3000–3999Assigned ONVOY, LLC - VA 138E WSNGTNZN19 VA
2026-02-26 571-743-7XXX 7000–7999Assigned ONVOY, LLC - VA 138E HERNDON VA
2026-02-26 571-747-9XXX 9000–9999Assigned ONVOY, LLC - VA 138E MANASSAS VA
2026-02-26 571-850-0XXX 0000–0999Assigned ONVOY, LLC - VA 138E LEESBURG VA
2026-02-25 571-708-6XXX 6000–6999Assigned TELNYX LLC 073H DALE CITY VA
2026-02-18 571-636-4XXX 4000–4999Assigned ONVOY, LLC - VA 138E HAYMARKET VA
2026-02-18 571-691-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 WSNGTNZN17 VA
2026-02-18 571-698-8XXX 8000–8999Assigned ONVOY, LLC - VA 138E ARCOLA VA
2026-02-17 571-850-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 LEESBURG VA
2026-02-17 571-850-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 LEESBURG VA
2026-01-30 571-739-7XXX 7000–7999Assigned ONVOY, LLC - VA 138E WSNGTNZN08 VA
2026-01-27 571-667-2XXX 2000–2999Assigned ONVOY, LLC - VA 138E LORTON VA
2026-01-27 571-671-3XXX 3000–3999Assigned ONVOY, LLC - VA 138E ENGLESIDE VA
2026-01-27 571-708-0XXX 0000–0999Assigned ONVOY, LLC - VA 138E DALE CITY VA
2026-01-27 571-708-1XXX 1000–1999Assigned ONVOY, LLC - VA 138E DALE CITY VA

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.