NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

2 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 703
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 1
BANDWIDTH.COM CLEC, LLC - VA 1
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
2007-06-04 703-543-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J BRADDOCK VA
2007-06-01 703-763-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J DALE CITY VA
2007-05-23 703-439-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 HERNDON VA
2007-05-23 703-825-3XXX 3000–3999Assigned YMAX COMMUNICATIONS CORP. OF VIRGINIA - VA 367E BRADDOCK VA
2007-05-23 703-825-4XXX 4000–4999Assigned YMAX COMMUNICATIONS CORP. OF VIRGINIA - VA 367E BRADDOCK VA
2007-05-23 703-825-5XXX 5000–5999Assigned YMAX COMMUNICATIONS CORP. OF VIRGINIA - VA 367E BRADDOCK VA
2007-05-23 703-825-6XXX 6000–6999Assigned YMAX COMMUNICATIONS CORP. OF VIRGINIA - VA 367E BRADDOCK VA
2007-05-23 703-825-8XXX 8000–8999Assigned YMAX COMMUNICATIONS CORP. OF VIRGINIA - VA 367E BRADDOCK VA
2007-05-23 703-859-8XXX 8000–8999Assigned YMAX COMMUNICATIONS CORP. OF VIRGINIA - VA 367E WSNGTNZN08 VA
2007-05-23 703-859-9XXX 9000–9999Assigned YMAX COMMUNICATIONS CORP. OF VIRGINIA - VA 367E WSNGTNZN08 VA
2007-05-23 703-896-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 WSNGTNZN19 VA
2007-05-23 703-896-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J WSNGTNZN19 VA
2007-05-18 703-865-1XXX 1000–1999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 WSNGTNZN19 VA
2007-05-16 703-910-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J OCCOQUAN VA
2007-05-14 703-291-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 TRIANGLE VA
2007-05-14 703-436-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 LORTON VA
2007-05-14 703-665-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 DULLES VA
2007-05-09 703-657-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J HERNDON VA
2007-05-09 703-865-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J WSNGTNZN19 VA
2007-05-03 703-653-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F WSNGTNZN19 VA
2007-04-20 703-334-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J MANASSAS VA
2007-04-13 703-651-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 DULLES VA
2007-04-13 703-653-4XXX 4000–4999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 WSNGTNZN19 VA
2007-04-11 703-249-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 BRADDOCK VA
2007-04-10 703-232-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 OCCOQUAN VA
2007-04-10 703-853-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 MANASSAS VA
2007-04-10 703-881-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 MANASSAS VA
2007-03-29 703-859-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 WSNGTNZN08 VA
2007-03-22 703-865-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 WSNGTNZN19 VA
2007-03-22 703-865-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 WSNGTNZN19 VA
2007-02-23 703-679-0XXX 0000–0999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 WSNGTNZN19 VA
2007-02-20 703-286-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN17 VA
2007-02-20 703-321-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN17 VA
2007-02-20 703-462-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN17 VA
2007-02-20 703-462-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN17 VA
2007-02-20 703-462-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN17 VA
2007-02-20 703-531-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN17 VA
2007-02-20 703-663-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN17 VA
2007-02-20 703-677-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN17 VA
2007-02-20 703-773-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 HERNDON VA
2007-02-16 703-270-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J WSNGTNZN17 VA
2007-02-14 703-646-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J LORTON VA
2007-02-14 703-657-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J HERNDON VA
2007-02-12 703-679-2XXX 2000–2999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 WSNGTNZN19 VA
2007-02-08 703-374-0XXX 0000–0999Assigned VERIZON VIRGINIA, INC. 9213 WSNGTNZN19 VA
2007-02-08 703-374-1XXX 1000–1999Assigned VERIZON VIRGINIA, INC. 9213 WSNGTNZN19 VA
2007-02-08 703-374-2XXX 2000–2999Assigned VERIZON VIRGINIA, INC. 9213 WSNGTNZN19 VA
2007-02-08 703-374-3XXX 3000–3999Assigned VERIZON VIRGINIA, INC. 9213 WSNGTNZN19 VA
2007-02-08 703-374-4XXX 4000–4999Assigned VERIZON VIRGINIA, INC. 9213 WSNGTNZN19 VA
2007-02-08 703-374-5XXX 5000–5999Assigned VERIZON VIRGINIA, INC. 9213 WSNGTNZN19 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.