Data as of Nov 4, 2026

47.21.27.0/24

2 residential-proxy exits · 30 days

Cablevision Systems Corp. · space held by Optimum Online

Announcement
RPKI valid
Announced by
Type
Business
50% of it

Residential-proxy exits

Proxy exits
2
0.78% of its addresses · 30 days
Always-on exits
2
100% of its exits
Providers
19
selling exits here
Oct 5, 2026 – Nov 3, 2026

Exits seen per day

2.0K observations

Proxy providers listing exits

  • 711Proxy
  • Ake.net
  • B2Proxy
  • BottingTools
  • Bright Data
  • ColaProxy
  • EZProxies
  • FastProxy
  • IPFly
  • IPPeak
  • KocerRoxy
  • LemonBright
  • LudaxProxy
  • Novada
  • PuraRoute
  • RainProxy
  • RoamProxy
  • Thordata
  • VitalExclusive

Composition

The types across the prefix's announced space, by addresses.

Announced space

Address share

Announced space

Types across the prefix

256 addresses
TypeAddressesShareRanges
Business12850%17
Residential12850%9

Network & registry

Announced by

Covering announcement 47.20.0.0/14

Prefix
47.20.0.0/14
Announced by
AS6128 Cablevision Systems Corp.
Type
Residential
Proxy exits
1,655
Always-on exits
390
RPKI
RPKI valid
Netname
NETBLK-OOL-11BLK
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