Data as of Nov 9, 2026

173.251.19.0/24

No anonymizer space · no proxy exits in 30 days

Tri State Voice & Data, LLC · space held by Cablevision Systems Corp.

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

Announcements

Less specific

Covering announcements

PrefixOriginTypeProxy exitsHolderRPKI
173.251.0.0/17
since Jul 2010
AS6128Residential43
5 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
173.251.0.0/1732,768CVNET-2Cablevision Systems Corp. (CVNT) · USDirect AllocationJun 18, 2010abuse@cv.net
└ 173.251.19.0/24256CVNET-ADFB1300AEL Group LLC (C02576313) · USReassignedAug 26, 2010abuse@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

Registry

Holder

Organization
Cablevision Systems Corp.
Handle
CVNT
Range
173.251.0.0/17
Registration type
Direct Allocation
Record created
Jun 18, 2010
Origin network

AS32696

US
Name
Tri State Voice & Data, LLC
Type
Internet provider
Registered
Mar 31, 2010
Domain
tspa.us
Spamhaus ASN-DROP
not listed