NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

10 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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
2004-06-24 540-572-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 BUENAVISTA VA
2004-06-21 540-266-5XXX 5000–5999Assigned VERIZON VIRGINIA, INC. 9213 ROANOKE VA
2004-06-18 540-266-6XXX 6000–6999Assigned VERIZON VIRGINIA, INC. 9213 ROANOKE VA
2004-06-18 540-784-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 LEXINGTON VA
2004-06-09 540-290-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 STAUNTON VA
2004-06-09 540-290-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 STAUNTON VA
2004-06-09 540-290-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 STAUNTON VA
2004-06-09 540-447-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 WAYNESBORO VA
2004-06-02 540-551-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 FRONTROYAL VA
2004-05-18 540-324-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 STAUNTON VA
2004-05-18 540-409-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 WINCHESTER VA
2004-05-18 540-469-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 DAHLGREN VA
2004-05-18 540-905-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 WARRENTON VA
2004-05-18 540-907-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 FREDECKSBG VA
2004-05-18 540-907-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 FREDECKSBG VA
2004-05-18 540-907-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 FREDECKSBG VA
2004-05-18 540-908-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 HARRISONBG VA
2004-05-12 540-221-7XXX 7000–7999Assigned LUMOS TELEPHONE LLC 0226 WAYNESBORO VA
2004-05-06 540-974-4XXX 4000–4999Assigned METROPCS, INC. 5562 WINCHESTER VA
2004-05-06 540-974-8XXX 8000–8999Assigned METROPCS, INC. 5562 WINCHESTER VA
2004-05-04 540-223-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 LOUISA VA
2004-05-04 540-352-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 ROCKYMOUNT VA
2004-05-04 540-440-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 PULASKI VA
2004-05-04 540-726-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 NARROWS VA
2004-05-04 540-999-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 SHENANDHPK VA
2004-04-30 540-207-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 FREDECKSBG VA
2004-04-27 540-514-1XXX 1000–1999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 WINCHESTER VA
2004-04-23 540-400-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J ROANOKE VA
2004-04-20 540-245-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F STAUNTON VA
2004-04-15 540-278-1XXX 1000–1999Assigned PAETEC ITEL, LLC 829J ROANOKE VA
2004-04-15 540-278-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J ROANOKE VA
2004-03-23 540-446-7XXX 7000–7999Assigned METROPCS, INC. 5562 STAFFORD VA
2004-03-23 540-907-3XXX 3000–3999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 FREDECKSBG VA
2004-03-03 540-263-2XXX 2000–2999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 ROCKYMOUNT VA
2004-03-02 540-878-2XXX 2000–2999Assigned VERIZON VIRGINIA, INC. 9213 WARRENTON VA
2004-02-24 540-907-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 FREDECKSBG VA
2004-02-24 540-907-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 FREDECKSBG VA
2004-02-24 540-908-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 HARRISONBG VA
2004-02-23 540-250-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 RADFORD VA
2004-02-23 540-250-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 RADFORD VA
2004-02-23 540-905-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 WARRENTON VA
2004-02-20 540-907-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 FREDECKSBG VA
2004-02-12 540-522-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 CULPEPER VA
2004-02-11 540-409-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WINCHESTER VA
2004-02-11 540-409-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WINCHESTER VA
2004-02-11 540-710-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 FREDECKSBG VA
2004-02-11 540-710-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 FREDECKSBG VA
2004-02-11 540-860-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LURAY VA
2004-02-11 540-860-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LURAY VA
2004-01-23 540-408-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 FREDECKSBG VA

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.