NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

1 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
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
2014-02-06 703-559-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 WSNGTNZN17 VA
2014-02-06 703-559-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 WSNGTNZN17 VA
2014-02-06 703-559-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 WSNGTNZN17 VA
2014-01-31 703-832-3XXX 3000–3999Assigned LEVEL 3 TELECOM OF VIRGINIA, LLC - VA 7769 BRADDOCK VA
2014-01-29 703-832-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F BRADDOCK VA
2014-01-20 703-479-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 MANASSAS VA
2014-01-10 703-649-1XXX 1000–1999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 TRIANGLE VA
2014-01-10 703-687-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J LEESBURG VA
2013-12-16 703-865-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J WSNGTNZN19 VA
2013-10-30 703-520-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F BRADDOCK VA
2013-10-21 703-364-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 WSNGTNZN19 VA
2013-10-21 703-364-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 WSNGTNZN19 VA
2013-10-21 703-991-3XXX 3000–3999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 WSNGTNZN19 VA
2013-10-21 703-991-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 WSNGTNZN19 VA
2013-10-04 703-713-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - DC 7529 WSNGTNZN19 VA
2013-10-01 703-454-0XXX 0000–0999Assigned PEERLESS NETWORK OF VIRGINIA, LLC - VA 275G ENGLESIDE VA
2013-09-20 703-293-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J WSNGTNZN19 VA
2013-09-13 703-884-6XXX 6000–6999Assigned METROPCS, INC. 5562 TRIANGLE VA
2013-09-10 703-260-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 DULLESMTRO VA
2013-08-28 703-940-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 WSNGTNZN17 VA
2013-08-26 703-552-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J DULLESMTRO VA
2013-08-07 703-997-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F WSNGTNZN08 VA
2013-08-06 703-520-8XXX 8000–8999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BRADDOCK VA
2013-08-06 703-537-2XXX 2000–2999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WSNGTNZN19 VA
2013-08-06 703-649-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J TRIANGLE VA
2013-08-06 703-940-8XXX 8000–8999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WSNGTNZN17 VA
2013-08-06 703-997-3XXX 3000–3999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WSNGTNZN08 VA
2013-08-02 703-935-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 HERNDON VA
2013-07-30 703-687-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 LEESBURG VA
2013-07-17 703-520-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F BRADDOCK VA
2013-07-16 703-687-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 LEESBURG VA
2013-07-09 703-665-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 DULLES VA
2013-07-02 703-687-8XXX 8000–8999Assigned METROPCS, INC. 5562 LEESBURG VA
2013-07-02 703-940-2XXX 2000–2999Assigned METROPCS, INC. 5562 WSNGTNZN17 VA
2013-07-02 703-940-4XXX 4000–4999Assigned METROPCS, INC. 5562 WSNGTNZN17 VA
2013-07-02 703-940-6XXX 6000–6999Assigned METROPCS, INC. 5562 WSNGTNZN17 VA
2013-07-02 703-940-7XXX 7000–7999Assigned METROPCS, INC. 5562 WSNGTNZN17 VA
2013-06-26 703-944-0XXX 0000–0999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 WSNGTNZN19 VA
2013-06-19 703-687-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LEESBURG VA
2013-06-05 703-520-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F BRADDOCK VA
2013-05-22 703-454-2XXX 2000–2999Assigned METROPCS, INC. 5562 ENGLESIDE VA
2013-05-22 703-520-3XXX 3000–3999Assigned METROPCS, INC. 5562 BRADDOCK VA
2013-05-22 703-520-4XXX 4000–4999Assigned METROPCS, INC. 5562 BRADDOCK VA
2013-05-22 703-687-5XXX 5000–5999Assigned METROPCS, INC. 5562 LEESBURG VA
2013-05-01 703-665-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F DULLES VA
2013-05-01 703-687-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J LEESBURG VA
2013-04-12 703-940-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J WSNGTNZN17 VA
2013-04-08 703-520-1XXX 1000–1999Assigned PEERLESS NETWORK OF VIRGINIA, LLC - VA 275G BRADDOCK VA
2013-04-08 703-520-9XXX 9000–9999Assigned PEERLESS NETWORK OF VIRGINIA, LLC - VA 275G BRADDOCK VA
2013-04-08 703-552-8XXX 8000–8999Assigned PEERLESS NETWORK OF VIRGINIA, LLC - VA 275G DULLESMTRO 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.