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Data as of Nov 8, 2026

203.237.128.0/17

105 residential-proxy exits · 30 days

Korea Telecom · space held by Korean Education Network

Announcement
this exact prefix
No RPKI
Announced by
AS4766
Type
Business
51% of it

Residential-proxy exits

Proxy exits
105
0.32% of its addresses · 30 days
Always-on exits
1
0.95% of its exits
Spread
18 of 128
/24s with at least one exit
Providers
55
selling exits here
Oct 9, 2026 – Nov 7, 2026

Exits seen per day

7.1K observations
  • Residential
  • Business

/24s with the most always-on exits

/24Always-on exitsProxy exits
203.237.157.0/2411
203.237.200.0/24040
203.237.224.0/24019
203.237.172.0/24011
203.237.159.0/2408
203.237.129.0/2407
203.237.130.0/2405
203.237.211.0/2402
203.237.140.0/2402
203.237.230.0/2402
203.237.190.0/2401
203.237.169.0/2401
203.237.206.0/2401
203.237.208.0/2401
203.237.213.0/2401
203.237.215.0/2401
203.237.136.0/2401
203.237.239.0/2401

Proxy providers listing exits

  • 9Proxy
  • AnyIP
  • BirdProxies
  • BottingTools
  • BuyingProxy
  • ByteProxies
  • Byteful
  • CliProxy
  • DataImpulse
  • Datarama
  • EnigmaProxy
  • Evomi
  • FastProxy
  • FlashProxy
  • FlexyProxies
  • FloppyData
  • FuseProxy
  • GSocks
  • Geonix
  • Geonode
  • GonzoProxy
  • HideProxy
  • IPFly
  • IPPeak
  • IPRoyal
  • Infatica
  • InfiniteProxies
  • LemonBright
  • LemonPrime
  • MangoProxy
  • NSocks
  • NextProxy
  • NodeProxy
  • NovProxy
  • NovaProxy
  • Proxiware
  • Proxmint
  • Proxy-Cheap
  • Proxy-Seller
  • Proxy4U
  • ProxyEmpire
  • ProxyGeo
  • ProxyRack
  • Proxying
  • Proxyma
  • PuraRoute
  • Q2IP
  • RainProxy
  • ResiProxies
  • SPYDERPROXY_PREMIUM
  • Shifter
  • Thordata
  • ThunderProxy
  • VantageProxies
  • VitalExclusive

Announcements

Nesting

More-specifics by size

Sized by addresses, colored by each announcement's type. Click a tile with children to zoom in, a leaf to open it.
More specific

Announcements inside

Arrived
PrefixOriginTypeProxy exitsHolderRPKI
203.237.128.0/19
since May 2005
AS3786Business24
1 always on
Korean Education Network
203.237.128.0/20
since May 2005
AS23983Business15Korean Education Network
203.237.144.0/21
since May 2005
AS23983BusinessKorean Education Network
203.237.152.0/23
since May 2005
AS23983BusinessKorean Education Network
203.237.154.0/24
since May 2005
AS4766ResidentialKorean Education Network
203.237.156.0/24
since May 2005
AS4766ResidentialKorean Education Network
203.237.157.0/24
since Oct 2018
AS4766Residential1
1 always on
Korean Education Network
203.237.158.0/24
since May 2005
AS4766ResidentialKorean Education Network
203.237.159.0/24
since May 2005
AS4766Residential8Korean Education Network
203.237.159.0/25AS4766Residential8Korean Education Network
203.237.159.128/25AS4766ResidentialKorean Education Network
203.237.160.0/24
since Dec 2023
AS3786BusinessKorean Education Network
203.237.161.0/24
since Dec 2023
AS3786BusinessKorean Education Network
203.237.162.0/24
since Dec 2023
AS3786BusinessKorean Education Network
203.237.163.0/24
since Dec 2023
AS3786BusinessKorean Education Network
203.237.164.0/24
since Dec 2023
AS3786BusinessKorean Education Network
203.237.165.0/24
since Dec 2023
AS3786BusinessKorean Education Network
203.237.166.0/24
since Dec 2023
AS3786BusinessKorean Education Network
203.237.167.0/24
since Dec 2023
AS3786BusinessKorean Education Network
203.237.168.0/24
since Feb 2012
AS18031BusinessKorean Education Network
203.237.169.0/24
since Feb 2012
AS18031Business1Korean Education Network
203.237.170.0/24
since Feb 2012
AS18031BusinessKorean Education Network
203.237.171.0/24
since Feb 2012
AS18031BusinessKorean Education Network
203.237.172.0/23
since Mar 2012
AS3786Business11Korean Education Network
203.237.172.0/24
since Apr 2015
AS18031Business11Korean Education Network
203.237.173.0/24
since Feb 2012
AS18031BusinessKorean Education Network
203.237.174.0/24
since Feb 2012
AS18031BusinessKorean Education Network
203.237.175.0/24
since Jul 2019
AS18031BusinessKorean Education Network
203.237.176.0/21
since May 2005
AS18329BusinessKorean Education Network
203.237.184.0/22
since May 2005
AS17614BusinessKorean Education Network
203.237.188.0/23
since May 2005
AS18319BusinessKorean Education Network
203.237.190.0/24
since Feb 2024
AS9318Residential1Korean Education Network
203.237.191.0/24
since Dec 2023
AS4766ResidentialKorean Education Network
203.237.192.0/21
since Dec 2023
AS4766ResidentialKorean Education Network
203.237.200.0/24
since Dec 2023
AS4766Residential40Korean Education Network
203.237.201.0/24
since Feb 2019
AS18329BusinessKorean Education Network
203.237.202.0/23
since Mar 2008
AS18026BusinessKorean Education Network
203.237.204.0/24
since Jan 2015
AS4766ResidentialKorean Education Network
203.237.205.0/24
since Jan 2015
AS4766ResidentialKorean Education Network
203.237.206.0/24
since Jan 2015
AS4766Residential1Korean Education Network
203.237.207.0/24
since Jan 2015
AS4766ResidentialKorean Education Network
203.237.208.0/24
since Jan 2015
AS4766Residential1Korean Education Network
203.237.209.0/24
since Jan 2015
AS4766ResidentialKorean Education Network
203.237.210.0/24
since Jan 2015
AS4766ResidentialKorean Education Network
203.237.211.0/24
since Jan 2015
AS4766Residential2Korean Education Network
203.237.212.0/24
since Jan 2015
AS4766ResidentialKorean Education Network
203.237.213.0/24
since Jan 2015
AS4766Residential1Korean Education Network
203.237.214.0/24
since Jan 2015
AS4766ResidentialKorean Education Network
203.237.215.0/24
since Jan 2015
AS4766Residential1Korean Education Network
203.237.216.0/24
since Dec 2023
AS9318ResidentialKorean Education Network
203.237.217.0/24
since Dec 2023
AS9318ResidentialKorean Education Network
203.237.218.0/24
since Dec 2023
AS9318ResidentialKorean Education Network
203.237.219.0/24
since Dec 2023
AS9318ResidentialKorean Education Network
203.237.220.0/24
since Dec 2023
AS9318ResidentialKorean Education Network
203.237.221.0/24
since Dec 2023
AS9318ResidentialKorean Education Network
203.237.222.0/24
since Dec 2023
AS9318ResidentialKorean Education Network
203.237.223.0/24
since Dec 2023
AS9318ResidentialKorean Education Network
203.237.224.0/24
since Apr 2009
AS4766Residential19Korean Education Network
203.237.225.0/24
since Dec 2024
AS4766ResidentialKorean Education Network
203.237.226.0/24
since Dec 2023
AS9318ResidentialKorean Education Network
203.237.227.0/24
since May 2008
AS4766ResidentialKorean Education Network
203.237.228.0/24
since May 2008
AS4766ResidentialKorean Education Network
203.237.229.0/24
since May 2008
AS4766ResidentialKorean Education Network
203.237.230.0/24
since May 2008
AS4766Residential2Korean Education Network
203.237.231.0/24
since Dec 2024
AS4766ResidentialKorean Education Network
203.237.232.0/21
since Dec 2023
AS4766Residential1Korean Education Network
203.237.240.0/21
since Dec 2019
AS9318ResidentialKorean Education Network
203.237.248.0/24
since Jul 2026
AS18329BusinessKorean Education Network
203.237.249.0/24
since Jul 2026
AS18329BusinessKorean Education Network
203.237.251.0/24
since Sep 2015
AS23586BusinessKorean Education Network
203.237.254.0/24
since May 2015
AS38694BusinessKorean Education Network
203.237.255.0/24
since May 2015
AS38694BusinessKorean Education Network

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
Business16,64051%30
Residential16,12849%42

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Origin network

AS4766

KR
Name
Korea Telecom
Type
Internet provider
Registered
Apr 22, 1996
Domain
kt.com
Website
www.kt.com/eng/main.jsp
Industry
Internet Service Provider (ISP)
Spamhaus ASN-DROP
not listed
VPN servers
1