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
2014-06-26 540-307-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J DUBLIN VA
2014-06-26 540-413-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F DAHLGREN VA
2014-06-26 540-456-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 GREENWOOD VA
2014-06-26 540-997-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CRAIGSVL VA
2014-06-25 540-227-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F WASHINGTON VA
2014-06-25 540-603-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F LOUISA VA
2014-06-20 540-473-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J FINCASTLE VA
2014-06-20 540-591-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J TROUTVILLE VA
2014-06-19 540-217-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 HARRISONBG VA
2014-06-17 540-360-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 ORANGE VA
2014-06-17 540-643-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J DUBLIN VA
2014-06-16 540-218-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 SHENANDOAH VA
2014-06-16 540-225-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 STANLEY VA
2014-06-16 540-227-9XXX 9000–9999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WASHINGTON VA
2014-06-16 540-253-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J THE PLAINS VA
2014-06-16 540-259-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 MINERAL VA
2014-06-16 540-277-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BERRYVILLE VA
2014-06-16 540-326-9XXX 9000–9999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MIDDLEBURG VA
2014-06-16 540-356-4XXX 4000–4999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J HARTWOOD VA
2014-06-16 540-388-5XXX 5000–5999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CHANCELLOR VA
2014-06-16 540-402-8XXX 8000–8999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J REMINGTON VA
2014-06-16 540-406-8XXX 8000–8999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J GORDONSVL VA
2014-06-16 540-441-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MT GILEAD VA
2014-06-16 540-469-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J DAHLGREN VA
2014-06-16 540-507-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SPOTSYLVAN VA
2014-06-16 540-508-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J STEPHENSCY VA
2014-06-16 540-543-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MADISON VA
2014-06-16 540-554-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BLUEMONT VA
2014-06-16 540-592-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J UPPERVILLE VA
2014-06-16 540-603-5XXX 5000–5999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LOUISA VA
2014-06-16 540-625-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J KINGGEORGE VA
2014-06-16 540-680-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WARRENTON VA
2014-06-16 540-692-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J FRONTROYAL VA
2014-06-16 540-715-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J UNIONVILLE VA
2014-06-16 540-724-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MARSHALL VA
2014-06-16 540-788-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CALVERTON VA
2014-06-16 540-837-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BOYCE VA
2014-06-16 540-843-8XXX 8000–8999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LURAY VA
2014-06-16 540-858-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J GORE VA
2014-06-16 540-882-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CATOCTIN VA
2014-06-16 540-888-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J GAINESBORO VA
2014-06-16 540-895-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BROKENBURG VA
2014-06-16 540-923-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CRIGLERSVL VA
2014-06-16 540-987-1XXX 1000–1999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SPERRYVL VA
2014-06-10 540-749-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 FRONTROYAL VA
2014-05-19 540-208-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 HARRISONBG VA
2014-05-15 540-940-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 FREDECKSBG VA
2014-05-15 540-940-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 FREDECKSBG VA
2014-05-14 540-488-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 ROCKYMOUNT VA
2014-05-07 540-212-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F CULPEPER 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.