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Data as of Nov 5, 2026

65.51.136.0/24

No anonymizer space · no proxy exits in 30 days

Cablevision Lightpath LLC · space held by Cablevision Systems Corp.

Announcement
this exact prefix
RPKI valid
Announced by
AS54004
Type
Unknown
Risk
0 / 100 · Low
Recent change
New origin Jul 2026
from AS54004 Cablevision Lightpath LLC, after 4.5 years unannounced

Announcements

Less specific

Covering announcements

PrefixOriginTypeProxy exitsHolderRPKI
65.51.128.0/20
since Mar 2022
AS54004Business4Cablevision Systems Corp.
65.51.128.0/17
since Mar 2022
AS54004Business41
2 always on
Cablevision Systems Corp.

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, 2007abuse@cv.net
└ 65.51.136.0/24256CVNET-4133880Mavis Tire (C02086093) · USReassignedNov 10, 2008abuse@cv.net
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

AS54004

US
Name
Cablevision Lightpath LLC
Type
Internet provider
Registered
Aug 31, 2011
Domain
lightpathfiber.com
Website
lightpathfiber.com/
Industry
Internet Service Provider (ISP)
Spamhaus ASN-DROP
not listed