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
2012-01-20 540-532-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WINCHESTER VA
2012-01-11 540-200-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 BLACKSBURG VA
2012-01-11 540-216-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 WARRENTON VA
2012-01-10 540-221-3XXX 3000–3999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 WAYNESBORO VA
2012-01-10 540-221-5XXX 5000–5999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 WAYNESBORO VA
2012-01-03 540-237-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J BRIDGEWTR VA
2012-01-03 540-249-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J GROTTOES VA
2012-01-03 540-269-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J KEEZLETOWN VA
2012-01-03 540-453-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J WEYERSCAVE VA
2012-01-03 540-733-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J EDOM VA
2012-01-03 540-867-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J HINTON VA
2012-01-03 540-879-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J DAYTON VA
2011-12-21 540-217-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J HARRISONBG VA
2011-12-21 540-225-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J STANLEY VA
2011-12-16 540-268-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J SHAWSVILLE VA
2011-12-16 540-307-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J DUBLIN VA
2011-12-16 540-315-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J BLACKSBURG VA
2011-12-16 540-440-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J PULASKI VA
2011-12-16 540-633-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J RADFORD VA
2011-12-14 540-252-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J FRONTROYAL VA
2011-12-14 540-277-1XXX 1000–1999Assigned PAETEC ITEL, LLC 829J BERRYVILLE VA
2011-12-14 540-860-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J LURAY VA
2011-12-14 540-947-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J MONTVALE VA
2011-12-12 540-613-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 ROANOKE VA
2011-12-08 540-940-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 FREDECKSBG VA
2011-12-06 540-685-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 ROANOKE VA
2011-12-06 540-817-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 LEXINGTON VA
2011-12-05 540-732-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J UNIONVILLE VA
2011-11-28 540-259-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J MINERAL VA
2011-11-28 540-603-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J LOUISA VA
2011-11-28 540-832-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J GORDONSVL VA
2011-11-21 540-377-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J RAPHINE VA
2011-11-21 540-997-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J CRAIGSVL VA
2011-11-09 540-685-6XXX 6000–6999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 ROANOKE VA
2011-11-09 540-685-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 ROANOKE VA
2011-11-07 540-376-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 FREDECKSBG VA
2011-11-07 540-431-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 WINCHESTER VA
2011-10-11 540-728-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J ROANOKE VA
2011-10-07 540-395-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 ORANGE VA
2011-10-07 540-441-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J MT GILEAD VA
2011-10-07 540-759-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 ROANOKE VA
2011-10-05 540-398-6XXX 6000–6999Assigned METROPCS, INC. 5562 WINCHESTER VA
2011-10-05 540-398-7XXX 7000–7999Assigned METROPCS, INC. 5562 WINCHESTER VA
2011-09-30 540-300-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 STAFFORD VA
2011-09-28 540-759-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 ROANOKE VA
2011-09-21 540-376-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J FREDECKSBG VA
2011-09-16 540-317-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 CULPEPER VA
2011-09-16 540-685-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 ROANOKE VA
2011-09-16 540-685-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 ROANOKE VA
2011-09-15 540-994-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J PULASKI 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.