LAYER3 INTEL
Get started
Sign in
Data as of Nov 3, 2026

65.51.31.0/24

No anonymizer space · no proxy exits in 30 days

Cablevision Systems Corp.

Announcement
this exact prefix
RPKI valid
Announced by
AS19720
Type
Residential
Risk
0 / 100 · Low

Registrations in this block

The registry's network records over the announcement: those covering it, widest first, then every record inside it, under its parent.

RangeAddressesNetnameHolderTypeCreatedAbuse contact
65.51.0.0/1665,536CVNET-2Cablevision Systems Corp. (CVNT) · USDirect AllocationNov 5, 2007[email protected]
└ 65.51.28.0/221,024CVNET-41331C00Cablevision Infrastructure (C02016304) · USReassignedAug 19, 2008[email protected]
via CVNET-2

A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Registry

Holder

Organization
Cablevision Systems Corp.
Handle
CVNT
Range
65.51.0.0/16
Registration type
Direct Allocation
Record created
Nov 5, 2007
Origin network

AS19720

US
Name
Cablevision Systems Corp.
Type
Internet provider
Registered
Feb 7, 2001
Domain
cablevision.com
Industry
Media, Publishing, and Broadcasting
Spamhaus ASN-DROP
not listed