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Data as of Nov 3, 2026

47.21.0.0/17

59 residential-proxy exits · 30 days

Cablevision Systems Corp. · space held by Optimum Online

Announcement
47.20.0.0/14
RPKI valid
Announced by
AS6128
Type
Residential
52% of it

Residential-proxy exits

Proxy exits
59
0.18% of its addresses · 30 days
Always-on exits
9
15% of its exits
Spread
43 of 128
/24s with at least one exit
Providers
78
selling exits here
Oct 4, 2026 – Nov 2, 2026

Exits seen per day

26K observations
  • Residential
  • Business

/24s with the most always-on exits

/24Always-on exitsProxy exits
47.21.27.0/2422
47.21.75.0/2414
47.21.7.0/2413
47.21.66.0/2413
47.21.6.0/2412
47.21.73.0/2411
47.21.40.0/2411
47.21.33.0/2411
47.21.20.0/2403
47.21.72.0/2402
47.21.63.0/2402
47.21.19.0/2402
47.21.47.0/2402
47.21.44.0/2402
47.21.21.0/2401
47.21.61.0/2401
47.21.28.0/2401
47.21.29.0/2401
47.21.25.0/2401
47.21.36.0/2401
47.21.39.0/2401
47.21.24.0/2401
47.21.22.0/2401
47.21.1.0/2401

Proxy providers listing exits

  • 711Proxy
  • 9Proxy
  • Ake.net
  • AnyIP
  • B2Proxy
  • BirdProxies
  • BlurPath
  • BottingTools
  • Bright Data
  • ByteProxies
  • Byteful
  • CatProxies
  • CliProxy
  • ColaProxy
  • DataImpulse
  • Decodo
  • EZProxies
  • EnigmaProxy
  • FastProxy
  • FlashProxy
  • FlexyProxies
  • FloppyData
  • GeekProxy
  • Geonode
  • GloryCloud
  • GonzoProxy
  • HideProxy
  • IPFly
  • IPOasis
  • IPPeak
  • IPRoyal
  • Infatica
  • InfiniteProxies
  • KocerRoxy
  • Kookey
  • LemonBright
  • LudaxProxy
  • MagneticProxy
  • MarsProxies
  • MoMoProxy
  • MrScraper
  • NSocks
  • NextProxy
  • NovProxy
  • NovaProxy
  • Novada
  • Oxylabs
  • PSBProxy
  • PacketStream
  • PrivateByte
  • PrivateProxy
  • Proxiware
  • Proxmint
  • Proxy-Seller
  • Proxy4U
  • ProxyEmpire
  • ProxyGeo
  • ProxyRack
  • ProxyWing
  • Proxying
  • Proxyma
  • PuraRoute
  • RainProxy
  • RapidProxy
  • RealProxy
  • ResiProxies
  • RoamProxy
  • RolaProxy
  • Shifter
  • SwiftProxy
  • Thordata
  • ThunderProxy
  • TrueProxies
  • VProxy
  • VantageProxies
  • VitalExclusive
  • WealthProxies
  • YumiProxy

Composition

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

Announced space

Address share

Announced space

Types across the prefix

32,768 addresses
TypeAddressesShareRanges
Residential17,10052%740
Business15,66848%1,588

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
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
1,641
Always-on exits
385
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