NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

10 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 540
ONVOY, LLC - VA 6
BANDWIDTH.COM CLEC, LLC - VA 2
PEERLESS NETWORK OF VIRGINIA, LLC - VA 1
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - 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
2013-10-01 540-307-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 DUBLIN VA
2013-10-01 540-628-8XXX 8000–8999Assigned PEERLESS NETWORK OF VIRGINIA, LLC - VA 275G STAFFORD VA
2013-09-20 540-395-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 ORANGE VA
2013-09-12 540-404-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J SALEM VA
2013-09-10 540-404-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J SALEM VA
2013-09-09 540-605-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J BLACKSBURG VA
2013-09-09 540-613-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 ROANOKE VA
2013-09-06 540-680-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J WARRENTON VA
2013-08-28 540-987-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 SPERRYVL VA
2013-08-27 540-569-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 STAUNTON VA
2013-08-27 540-685-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J ROANOKE VA
2013-08-16 540-875-1XXX 1000–1999Assigned PAETEC ITEL, LLC 829J BEDFORD VA
2013-08-15 540-602-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J STAFFORD VA
2013-08-14 540-656-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 FREDECKSBG VA
2013-08-14 540-680-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 WARRENTON VA
2013-08-14 540-750-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 BLACKSBURG VA
2013-08-08 540-583-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F BEDFORD VA
2013-08-06 540-602-1XXX 1000–1999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J STAFFORD VA
2013-07-17 540-684-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 FREDECKSBG VA
2013-07-16 540-603-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 LOUISA VA
2013-07-01 540-682-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J ROANOKE VA
2013-06-28 540-326-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MIDDLEBURG VA
2013-06-27 540-431-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 WINCHESTER VA
2013-06-27 540-682-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 ROANOKE VA
2013-06-25 540-970-7XXX 7000–7999Assigned CITIZENS TELEPHONE COOPERATIVE - VA 544A ROANOKE VA
2013-06-20 540-326-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J MIDDLEBURG VA
2013-06-17 540-602-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J STAFFORD VA
2013-06-05 540-307-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F DUBLIN VA
2013-06-05 540-613-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F ROANOKE VA
2013-05-29 540-849-4XXX 4000–4999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 STAUNTON VA
2013-05-23 540-228-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 NATURALBDG VA
2013-05-22 540-218-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J SHENANDOAH VA
2013-05-21 540-508-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 STEPHENSCY VA
2013-05-21 540-642-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 FREDECKSBG VA
2013-05-21 540-682-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 ROANOKE VA
2013-05-21 540-682-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 ROANOKE VA
2013-05-21 540-750-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 BLACKSBURG VA
2013-05-21 540-940-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 FREDECKSBG VA
2013-05-21 540-940-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 FREDECKSBG VA
2013-05-20 540-225-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 STANLEY VA
2013-05-20 540-680-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 WARRENTON VA
2013-05-20 540-838-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 RADFORD VA
2013-05-16 540-628-9XXX 9000–9999Assigned IP HORIZON LLC 515J STAFFORD VA
2013-05-16 540-817-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 LEXINGTON VA
2013-05-16 540-940-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J FREDECKSBG VA
2013-05-14 540-237-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 BRIDGEWTR VA
2013-05-14 540-251-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 CHRISTISBG VA
2013-05-14 540-321-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 CULPEPER VA
2013-05-14 540-404-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 SALEM VA
2013-05-01 540-227-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F WASHINGTON 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.