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
2026-05-14 571-682-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 WSNGTNZN19 VA
2026-05-13 571-739-2XXX 2000–2999Assigned BARR TELL USA 187K WSNGTNZN08 VA
2026-05-13 571-753-3XXX 3000–3999Assigned BARR TELL USA 187K BRADDOCK VA
2026-05-11 571-759-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HERNDON VA
2026-05-08 571-680-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F LEESBURG VA
2026-05-08 571-708-5XXX 5000–5999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 DALE CITY VA
2026-05-08 571-708-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 DALE CITY VA
2026-05-08 571-708-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 DALE CITY VA
2026-05-08 571-770-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 LEESBURG VA
2026-05-08 571-850-2XXX 2000–2999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 LEESBURG VA
2026-05-07 571-761-0XXX 0000–0999Assigned ONVOY, LLC - VA 138E LORTON VA
2026-05-07 571-763-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 WSNGTNZN17 VA
2026-05-07 571-763-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 WSNGTNZN17 VA
2026-05-07 571-763-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 WSNGTNZN17 VA
2026-05-07 571-763-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 WSNGTNZN17 VA
2026-05-07 571-763-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 WSNGTNZN17 VA
2026-05-07 571-763-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 WSNGTNZN17 VA
2026-05-07 571-763-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 WSNGTNZN17 VA
2026-05-07 571-763-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 WSNGTNZN17 VA
2026-05-07 571-763-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 WSNGTNZN17 VA
2026-05-07 571-763-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 WSNGTNZN17 VA
2026-05-06 571-747-7XXX 7000–7999Assigned ONVOY, LLC - VA 138E MANASSAS VA
2026-05-05 571-750-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN08 VA
2026-05-05 571-750-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN08 VA
2026-05-05 571-750-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN08 VA
2026-05-05 571-754-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN08 VA
2026-05-05 571-754-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN08 VA
2026-05-05 571-754-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN08 VA
2026-05-05 571-754-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN08 VA
2026-05-05 571-754-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN08 VA
2026-05-05 571-754-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN08 VA
2026-05-05 571-754-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN08 VA
2026-05-05 571-754-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN08 VA
2026-05-05 571-754-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN08 VA
2026-05-05 571-757-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN19 VA
2026-05-05 571-757-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN19 VA
2026-05-05 571-757-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN19 VA
2026-05-05 571-760-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN08 VA
2026-04-30 571-757-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - DC 7529 WSNGTNZN19 VA
2026-04-30 571-850-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 LEESBURG VA
2026-04-28 571-759-1XXX 1000–1999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J HERNDON VA
2026-04-27 571-934-9XXX 9000–9999Assigned TELNYX LLC 073H DULLES VA
2026-04-24 571-708-3XXX 3000–3999Assigned ONVOY, LLC - VA 138E DALE CITY VA
2026-04-24 571-708-4XXX 4000–4999Assigned ONVOY, LLC - VA 138E DALE CITY VA
2026-04-24 571-724-7XXX 7000–7999Assigned ONVOY, LLC - VA 138E OCCOQUAN VA
2026-04-24 571-743-6XXX 6000–6999Assigned ONVOY, LLC - VA 138E HERNDON VA
2026-04-24 571-750-2XXX 2000–2999Assigned ONVOY, LLC - VA 138E WSNGTNZN08 VA
2026-04-24 571-750-3XXX 3000–3999Assigned ONVOY, LLC - VA 138E WSNGTNZN08 VA
2026-04-24 571-750-4XXX 4000–4999Assigned ONVOY, LLC - VA 138E WSNGTNZN08 VA
2026-04-24 571-753-8XXX 8000–8999Assigned ONVOY, LLC - VA 138E BRADDOCK 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.