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
2014-05-07 540-328-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F STONE MT VA
2014-05-07 540-613-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F ROANOKE VA
2014-05-07 540-642-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F FREDECKSBG VA
2014-05-06 540-680-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F WARRENTON VA
2014-04-14 540-388-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 CHANCELLOR VA
2014-04-14 540-388-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 CHANCELLOR VA
2014-04-14 540-388-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 CHANCELLOR VA
2014-04-11 540-759-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 ROANOKE VA
2014-04-08 540-413-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 DAHLGREN VA
2014-04-04 540-252-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F FRONTROYAL VA
2014-04-02 540-217-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J HARRISONBG VA
2014-03-25 540-212-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 CULPEPER VA
2014-03-25 540-369-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J FREDECKSBG VA
2014-03-25 540-712-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 STAUNTON VA
2014-03-25 540-773-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WINCHESTER VA
2014-03-19 540-388-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F CHANCELLOR VA
2014-03-19 540-407-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F MADISON VA
2014-03-19 540-750-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F BLACKSBURG VA
2014-03-13 540-712-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J STAUNTON VA
2014-03-11 540-773-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 WINCHESTER VA
2014-03-10 540-407-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MADISON VA
2014-03-07 540-237-0XXX 0000–0999Assigned SHENTEL COMMUNICATIONS, LLC. - VA 4979 BRIDGEWTR VA
2014-03-07 540-254-8XXX 8000–8999Assigned SHENTEL COMMUNICATIONS, LLC. - VA 4979 BUCHANAN VA
2014-03-06 540-750-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 BLACKSBURG VA
2014-03-03 540-699-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J STAFFORD VA
2014-02-26 540-251-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F CHRISTISBG VA
2014-02-26 540-259-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F MINERAL VA
2014-02-26 540-449-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 CHRISTISBG VA
2014-02-26 540-466-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F STAUNTON VA
2014-02-26 540-613-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F ROANOKE VA
2014-02-26 540-835-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F RADFORD VA
2014-02-25 540-358-2XXX 2000–2999Assigned CEBRIDGE TELECOM VA, LLC DBA SUDDENLINK COMM 229H NARROWS VA
2014-02-24 540-485-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CULPEPER VA
2014-02-20 540-676-0XXX 0000–0999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 ROANOKE VA
2014-02-20 540-684-0XXX 0000–0999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 FREDECKSBG VA
2014-02-18 540-221-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J WAYNESBORO VA
2014-02-05 540-317-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 CULPEPER VA
2014-02-03 540-277-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BERRYVILLE VA
2014-01-31 540-216-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J WARRENTON VA
2014-01-31 540-450-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WINCHESTER VA
2014-01-29 540-579-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F CATOCTIN VA
2014-01-29 540-929-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F BENT MT VA
2014-01-29 540-999-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F SHENANDHPK VA
2014-01-27 540-302-7XXX 7000–7999Assigned CITIZENS TELEPHONE COOPERATIVE - VA 544A SALEM VA
2014-01-27 540-321-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J CULPEPER VA
2014-01-27 540-838-8XXX 8000–8999Assigned CITIZENS TELEPHONE COOPERATIVE - VA 544A RADFORD VA
2014-01-23 540-268-4XXX 4000–4999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SHAWSVILLE VA
2014-01-23 540-328-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J STONE MT VA
2014-01-23 540-377-8XXX 8000–8999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J RAPHINE VA
2014-01-23 540-404-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SALEM 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.