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Data as of Nov 4, 2026

104.246.70.0/23

No anonymizer space · no proxy exits in 30 days

Cablevision Systems Corp. · space held by Optimum Online

Announcement
104.246.0.0/17
RPKI valid
Announced by
AS6128
Type
Residential
Risk
0 / 100 · Low

Registrations in this block

The registry's network records over this block, widest first, each under its parent.

RangeAddressesNetnameHolderTypeCreatedAbuse contact
104.246.0.0/1732,768NETBLK-OOL-13BLKOptimum Online (OPTO) · USDirect AllocationDec 9, 2014[email protected]
└ 104.246.70.0/23512OOL-CPE-HCVLNY-104-246-70-0-23unknown———

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Announced by

Covering announcement 104.246.0.0/17

Prefix
104.246.0.0/17
Announced by
AS6128 Cablevision Systems Corp.
Type
Residential
Proxy exits
445
Always-on exits
99
RPKI
RPKI valid
Netname
NETBLK-OOL-13BLK
Registrant
Optimum Online
RIR
ARIN
Origin network

AS6128

US
Name
Cablevision Systems Corp.
Type
Internet provider
Domain
cablevision.com
Website
www.optimum.net
Industry
Internet Service Provider (ISP)
Spamhaus ASN-DROP
not listed