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
2008-04-03 540-553-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 BLACKSBURG VA
2008-03-14 540-316-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 WARRENTON VA
2008-03-10 540-260-8XXX 8000–8999Assigned SHENTEL COMMUNICATIONS, LLC. - VA 4979 CHRISTISBG VA
2008-03-07 540-668-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J CATOCTIN VA
2008-03-07 540-837-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J BOYCE VA
2008-03-06 540-209-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 HARRISONBG VA
2008-03-03 540-313-0XXX 0000–0999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 WINCHESTER VA
2008-03-03 540-479-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J FREDECKSBG VA
2008-02-28 540-305-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 FRONTROYAL VA
2008-02-28 540-318-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J STAFFORD VA
2008-02-28 540-577-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 RADFORD VA
2008-02-27 540-689-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F HARRISONBG VA
2008-02-27 540-689-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F HARRISONBG VA
2008-02-27 540-689-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 HARRISONBG VA
2008-02-27 540-689-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F HARRISONBG VA
2008-02-27 540-689-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F HARRISONBG VA
2008-02-27 540-689-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F HARRISONBG VA
2008-02-27 540-689-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F HARRISONBG VA
2008-02-25 540-629-2XXX 2000–2999Assigned SHENTEL COMMUNICATIONS, LLC. - VA 4979 RADFORD VA
2008-02-19 540-605-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 BLACKSBURG VA
2008-02-15 540-204-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J ROANOKE VA
2008-02-14 540-579-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 CATOCTIN VA
2008-02-13 540-958-5XXX 5000–5999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 COVINGTON VA
2008-02-13 540-958-6XXX 6000–6999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 COVINGTON VA
2008-02-12 540-686-3XXX 3000–3999Assigned VERIZON VIRGINIA, INC. 9213 WINCHESTER VA
2008-02-12 540-686-4XXX 4000–4999Assigned VERIZON VIRGINIA, INC. 9213 WINCHESTER VA
2008-02-11 540-688-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 STAUNTON VA
2008-02-08 540-244-6XXX 6000–6999Assigned METROPCS, INC. 5562 LURAY VA
2008-02-08 540-423-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J CULPEPER VA
2008-02-07 540-253-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J THE PLAINS VA
2008-02-07 540-435-5XXX 5000–5999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 HARRISONBG VA
2008-02-07 540-514-4XXX 4000–4999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 WINCHESTER VA
2008-02-07 540-542-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 WINCHESTER VA
2008-02-06 540-308-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 ORANGE VA
2008-02-06 540-359-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 WARRENTON VA
2008-02-06 540-553-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 BLACKSBURG VA
2008-02-06 540-597-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 ROANOKE VA
2008-02-06 540-597-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 ROANOKE VA
2008-02-06 540-645-4XXX 4000–4999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 FREDECKSBG VA
2008-02-06 540-645-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 FREDECKSBG VA
2008-02-06 540-645-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 FREDECKSBG VA
2008-02-06 540-645-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 FREDECKSBG VA
2008-02-06 540-686-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 WINCHESTER VA
2008-02-06 540-958-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 COVINGTON VA
2008-02-05 540-318-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 STAFFORD VA
2008-02-05 540-319-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 LEXINGTON VA
2008-02-05 540-319-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 LEXINGTON VA
2008-02-05 540-364-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J MARSHALL VA
2008-02-05 540-439-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J REMINGTON VA
2008-02-05 540-605-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 BLACKSBURG 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.