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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2026-09-18 571-521-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 HERNDON VA
2026-09-18 571-625-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F TRIANGLE VA
2026-09-18 571-743-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 HERNDON VA
2026-09-18 571-743-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 HERNDON VA
2026-09-16 571-779-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F WSNGTNZN08 VA
2026-09-16 571-779-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F WSNGTNZN08 VA
2026-09-16 571-779-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F WSNGTNZN08 VA
2026-09-16 571-779-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F WSNGTNZN08 VA
2026-09-15 571-772-2XXX 2000–2999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 DALE CITY VA
2026-09-15 571-772-3XXX 3000–3999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 DALE CITY VA
2026-09-15 571-772-4XXX 4000–4999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 DALE CITY VA
2026-09-14 571-321-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BRADDOCK VA
2026-09-14 571-696-0XXX 0000–0999Assigned ONVOY, LLC - VA 138E ENGLESIDE VA
2026-09-14 571-704-8XXX 8000–8999Assigned TELNYX LLC 073H NOKESVILLE VA
2026-09-14 571-761-1XXX 1000–1999Assigned ONVOY, LLC - VA 138E LORTON VA
2026-09-14 571-779-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN08 VA
2026-09-14 571-779-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN08 VA
2026-09-14 571-783-7XXX 7000–7999Assigned VERSATEL LLC 962J ARCOLA VA
2026-09-10 571-625-2XXX 2000–2999Assigned ONVOY, LLC - VA 138E TRIANGLE VA
2026-09-10 571-770-5XXX 5000–5999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 LEESBURG VA
2026-09-10 571-825-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 LEESBURG VA
2026-09-10 571-825-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 LEESBURG VA
2026-09-10 571-825-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 LEESBURG VA
2026-09-10 571-931-9XXX 9000–9999Assigned ONVOY, LLC - VA 138E TRIANGLE VA
2026-09-03 571-783-0XXX 0000–0999Assigned ONVOY, LLC - VA 138E ARCOLA VA
2026-09-03 571-783-1XXX 1000–1999Assigned ONVOY, LLC - VA 138E ARCOLA VA
2026-09-02 571-768-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F WSNGTNZN19 VA
2026-09-02 571-768-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F WSNGTNZN19 VA
2026-09-01 571-756-7XXX 7000–7999Assigned EXIANT COMMUNICATIONS LLC 114J HAYMARKET VA
2026-08-31 571-764-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 OCCOQUAN VA
2026-08-31 571-764-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 OCCOQUAN VA
2026-08-31 571-770-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LEESBURG VA
2026-08-27 571-764-1XXX 1000–1999Assigned ONVOY, LLC - VA 138E OCCOQUAN VA
2026-08-27 571-764-2XXX 2000–2999Assigned ONVOY, LLC - VA 138E OCCOQUAN VA
2026-08-27 571-764-3XXX 3000–3999Assigned ONVOY, LLC - VA 138E OCCOQUAN VA
2026-08-25 571-756-8XXX 8000–8999Assigned ONVOY, LLC - VA 138E HAYMARKET VA
2026-08-25 571-770-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 LEESBURG VA
2026-08-25 571-772-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F DALE CITY VA
2026-08-25 571-772-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F DALE CITY VA
2026-08-24 571-779-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 WSNGTNZN08 VA
2026-08-24 571-779-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 WSNGTNZN08 VA
2026-08-21 571-770-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F LEESBURG VA
2026-08-21 571-770-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F LEESBURG VA
2026-08-20 571-698-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F ARCOLA VA
2026-08-20 571-772-7XXX 7000–7999Assigned OPENTACT INC. 824J DALE CITY VA
2026-08-20 571-782-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HERNDON VA
2026-08-20 571-782-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HERNDON VA
2026-08-20 571-782-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HERNDON VA
2026-08-19 571-321-9XXX 9000–9999Assigned ONVOY, LLC - VA 138E BRADDOCK VA
2026-08-19 571-521-0XXX 0000–0999Assigned ONVOY, LLC - VA 138E HERNDON 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.