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
2018-10-03 540-426-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 STAFFORD VA
2018-09-25 540-348-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F BROWNSBURG VA
2018-09-25 540-390-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J HARTWOOD VA
2018-09-21 540-541-2XXX 2000–2999Assigned METROPCS, INC. 5562 ROANOKE VA
2018-09-17 540-870-5XXX 5000–5999Assigned ONVOY, LLC - VA 138E FREDECKSBG VA
2018-09-17 540-870-6XXX 6000–6999Assigned ONVOY, LLC - VA 138E FREDECKSBG VA
2018-09-17 540-870-7XXX 7000–7999Assigned ONVOY, LLC - VA 138E FREDECKSBG VA
2018-09-17 540-870-8XXX 8000–8999Assigned ONVOY, LLC - VA 138E FREDECKSBG VA
2018-09-14 540-707-5XXX 5000–5999Assigned PEERLESS NETWORK OF VIRGINIA, LLC - VA 275G BEDFORD VA
2018-09-14 540-744-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 RADFORD VA
2018-09-13 540-678-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 WINCHESTER VA
2018-09-13 540-918-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F SHENANDOAH VA
2018-09-12 540-281-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 BLUEMONT VA
2018-09-12 540-426-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J STAFFORD VA
2018-09-12 540-442-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J HARRISONBG VA
2018-09-12 540-485-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J CULPEPER VA
2018-09-12 540-688-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J STAUNTON VA
2018-09-11 540-258-4XXX 4000–4999Assigned ONVOY, LLC - VA 138E GLASGOW VA
2018-09-11 540-264-4XXX 4000–4999Assigned ONVOY, LLC - VA 138E BUENAVISTA VA
2018-09-11 540-291-7XXX 7000–7999Assigned ONVOY, LLC - VA 138E NATURALBDG VA
2018-09-11 540-348-3XXX 3000–3999Assigned ONVOY, LLC - VA 138E BROWNSBURG VA
2018-09-11 540-600-4XXX 4000–4999Assigned ONVOY, LLC - VA 138E LEXINGTON VA
2018-09-11 540-660-3XXX 3000–3999Assigned ONVOY, LLC - VA 138E FRONTROYAL VA
2018-09-10 540-385-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F CHRISTISBG VA
2018-09-10 540-634-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F MINERAL VA
2018-09-07 540-541-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 ROANOKE VA
2018-09-07 540-541-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 ROANOKE VA
2018-09-07 540-541-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 ROANOKE VA
2018-09-07 540-655-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 ROANOKE VA
2018-08-23 540-410-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F STONE MT VA
2018-08-21 540-410-0XXX 0000–0999Assigned ONVOY, LLC - VA 138E STONE MT VA
2018-08-21 540-410-1XXX 1000–1999Assigned ONVOY, LLC - VA 138E STONE MT VA
2018-08-17 540-513-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - VA 079F ORANGE VA
2018-08-16 540-253-3XXX 3000–3999Assigned ONVOY, LLC - VA 138E THE PLAINS VA
2018-08-16 540-274-8XXX 8000–8999Assigned ONVOY, LLC - VA 138E PULASKI VA
2018-08-16 540-274-9XXX 9000–9999Assigned ONVOY, LLC - VA 138E PULASKI VA
2018-08-16 540-340-3XXX 3000–3999Assigned ONVOY, LLC - VA 138E WARRENTON VA
2018-08-16 540-351-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WARRENTON VA
2018-08-16 540-385-4XXX 4000–4999Assigned ONVOY, LLC - VA 138E CHRISTISBG VA
2018-08-16 540-390-7XXX 7000–7999Assigned ONVOY, LLC - VA 138E HARTWOOD VA
2018-08-16 540-401-8XXX 8000–8999Assigned ONVOY, LLC - VA 138E BERRYVILLE VA
2018-08-16 540-418-7XXX 7000–7999Assigned ONVOY, LLC - VA 138E BLACKSBURG VA
2018-08-16 540-799-7XXX 7000–7999Assigned ONVOY, LLC - VA 138E RAPHINE VA
2018-08-16 540-991-9XXX 9000–9999Assigned ONVOY, LLC - VA 138E REMINGTON VA
2018-08-10 540-902-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J GREENWOOD VA
2018-08-03 540-321-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 CULPEPER VA
2018-08-03 540-384-5XXX 5000–5999Assigned ONVOY, LLC - VA 138E SALEM VA
2018-08-03 540-805-8XXX 8000–8999Assigned ONVOY, LLC - VA 138E SPOTSYLVAN VA
2018-08-02 540-924-9XXX 9000–9999Assigned PEERLESS NETWORK OF VIRGINIA, LLC - VA 275G BUCHANAN VA
2018-07-26 540-924-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J BUCHANAN 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.