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
2012-05-15 703-982-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F LORTON VA
2012-05-11 703-429-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 HERNDON VA
2012-05-11 703-429-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 HERNDON VA
2012-05-11 703-429-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 HERNDON VA
2012-04-17 703-206-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 WSNGTNZN17 VA
2012-04-17 703-720-9XXX 9000–9999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 WSNGTNZN17 VA
2012-04-16 703-372-0XXX 0000–0999Assigned PEERLESS NETWORK OF VIRGINIA, LLC - VA 275G ENGLESIDE VA
2012-04-02 703-206-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN17 VA
2012-04-02 703-388-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN17 VA
2012-03-29 703-429-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 HERNDON VA
2012-03-29 703-596-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F NOKESVILLE VA
2012-03-29 703-988-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F BRADDOCK VA
2012-03-07 703-646-6XXX 6000–6999Assigned ONVOY, LLC - VA 138E LORTON VA
2012-02-16 703-634-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 TRIANGLE VA
2012-02-13 703-712-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J WSNGTNZN17 VA
2012-02-08 703-429-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 HERNDON VA
2012-02-08 703-498-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 OCCOQUAN VA
2012-02-08 703-574-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 DULLES VA
2012-02-08 703-664-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 WSNGTNZN08 VA
2012-02-08 703-762-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 WSNGTNZN17 VA
2012-02-08 703-982-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 LORTON VA
2012-02-03 703-429-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F HERNDON VA
2012-02-03 703-544-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F DULLES VA
2012-02-03 703-988-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F BRADDOCK VA
2012-02-01 703-988-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 BRADDOCK VA
2012-01-24 703-760-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 WSNGTNZN17 VA
2012-01-12 703-594-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 NOKESVILLE VA
2012-01-12 703-872-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 WSNGTNZN08 VA
2012-01-10 703-429-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 HERNDON VA
2012-01-06 703-996-7XXX 7000–7999Assigned ONVOY, LLC - VA 138E DULLES VA
2011-12-02 703-691-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 WSNGTNZN19 VA
2011-12-01 703-291-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 TRIANGLE VA
2011-12-01 703-665-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 DULLES VA
2011-11-16 703-388-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN17 VA
2011-11-16 703-523-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J DALE CITY VA
2011-11-16 703-523-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J DALE CITY VA
2011-11-16 703-523-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J DALE CITY VA
2011-11-16 703-523-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J DALE CITY VA
2011-11-16 703-523-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J DALE CITY VA
2011-11-16 703-523-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J DALE CITY VA
2011-11-16 703-523-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J DALE CITY VA
2011-11-16 703-523-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J DALE CITY VA
2011-11-16 703-523-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J DALE CITY VA
2011-11-16 703-523-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J DALE CITY VA
2011-11-16 703-762-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN17 VA
2011-11-16 703-883-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN17 VA
2011-10-24 703-712-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J WSNGTNZN17 VA
2011-09-30 703-594-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 NOKESVILLE VA
2011-09-23 703-640-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 TRIANGLE VA
2011-09-01 703-988-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F BRADDOCK 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.