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
2010-10-08 703-657-5XXX 5000–5999Assigned ONVOY, LLC - VA 138E HERNDON VA
2010-10-01 703-589-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F WSNGTNZN19 VA
2010-10-01 703-829-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F BRADDOCK VA
2010-10-01 703-831-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F BRADDOCK VA
2010-10-01 703-831-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F BRADDOCK VA
2010-10-01 703-831-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F BRADDOCK VA
2010-10-01 703-831-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F BRADDOCK VA
2010-09-10 703-828-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F BRADDOCK VA
2010-08-18 703-544-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J DULLES VA
2010-07-30 703-570-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J DULLESMTRO VA
2010-07-30 703-665-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J DULLES VA
2010-07-20 703-634-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F TRIANGLE VA
2010-07-20 703-662-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F DULLES VA
2010-07-20 703-672-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F LORTON VA
2010-07-20 703-951-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F BRADDOCK VA
2010-07-14 703-596-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F NOKESVILLE VA
2010-07-14 703-596-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F NOKESVILLE VA
2010-07-14 703-646-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F LORTON VA
2010-07-14 703-672-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F LORTON VA
2010-07-14 703-828-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F BRADDOCK VA
2010-07-14 703-828-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F BRADDOCK VA
2010-07-14 703-828-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F BRADDOCK VA
2010-07-14 703-957-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F ARCOLA VA
2010-07-13 703-651-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F DULLES VA
2010-07-13 703-651-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F DULLES VA
2010-06-28 703-249-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F BRADDOCK VA
2010-06-28 703-382-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F ENGLESIDE VA
2010-06-28 703-646-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F LORTON VA
2010-06-28 703-662-8XXX 8000–8999Assigned PEERLESS NETWORK OF VIRGINIA, LLC - VA 275G DULLES VA
2010-05-27 703-544-8XXX 8000–8999Assigned PAETEC ITEL, LLC 829J DULLES VA
2010-05-26 703-468-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F HAYMARKET VA
2010-05-26 703-957-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F ARCOLA VA
2010-05-11 703-676-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J WSNGTNZN17 VA
2010-04-15 703-634-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 TRIANGLE VA
2010-04-07 703-260-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 DULLESMTRO VA
2010-03-04 703-957-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J ARCOLA VA
2010-02-23 703-249-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 BRADDOCK VA
2010-02-18 703-268-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 WSNGTNZN19 VA
2010-01-21 703-596-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F NOKESVILLE VA
2010-01-21 703-634-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F TRIANGLE VA
2010-01-21 703-662-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F DULLES VA
2010-01-21 703-672-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F LORTON VA
2010-01-21 703-829-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F BRADDOCK VA
2010-01-21 703-829-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F BRADDOCK VA
2010-01-21 703-829-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F BRADDOCK VA
2010-01-21 703-957-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F ARCOLA VA
2010-01-11 703-956-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 HERNDON VA
2009-12-09 703-261-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F WSNGTNZN19 VA
2009-12-09 703-261-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F WSNGTNZN19 VA
2009-12-09 703-375-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F 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.