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Data as of Nov 10, 2026

221.144.0.0/12

46 anonymizer addresses · <0.01% · VPN

Korea Telecom

Announcement
this exact prefix
No RPKI
Announced by
AS4766
Type
Residential
>99% of it

Residential-proxy exits

Proxy exits
6,557
0.63% of its addresses · listed by providers
Always-on exits
285
4.3% of its exits
Spread
2,628 of 4,096
/24s with at least one exit
Providers
123
selling exits here

/24s with the most always-on exits

/24Always-on exitsProxy exits
221.158.190.0/24511
221.146.125.0/2425
221.150.205.0/2425
221.158.75.0/2424
221.148.42.0/2424
221.153.193.0/2424
221.145.88.0/2424
221.147.56.0/2423
221.158.44.0/2423
221.150.166.0/2423
221.148.163.0/2422
221.149.80.0/2422
221.149.11.0/2418
221.156.46.0/2418
221.157.238.0/2418
221.149.42.0/2418
221.159.61.0/2417
221.158.3.0/2417
221.157.202.0/2417
221.158.85.0/2417
221.146.248.0/2417
221.145.195.0/2417
221.148.178.0/2417
221.158.45.0/2417

Proxy providers listing exits

  • 2Captcha
  • 711Proxy
  • 9Proxy
  • ASHBURNPROXIES
  • Ake.net
  • AnyIP
  • B2Proxy
  • BartProxies
  • BirdProxies
  • BlurPath
  • BottingTools
  • Bright Data
  • BuyingProxy
  • ByteProxies
  • Byteful
  • CatProxies
  • CliProxy
  • CoreProxy
  • DataImpulse
  • Datarama
  • Decodo
  • EVOPROXY
  • EZProxies
  • EnigmaProxy
  • Evomi
  • FLEETPROXY
  • FastProxy
  • FlashProxy
  • FlexyProxies
  • FloppyData
  • GSocks
  • GeekProxy
  • Geonix
  • Geonode
  • GhostConnect
  • GloryCloud
  • GoProxies
  • GonzoProxy
  • HPROXY
  • HideProxy
  • HydraProxy
  • IPCola
  • IPFly
  • IPMUSK
  • IPOasis
  • IPPeak
  • IPRoyal
  • Infatica
  • InfiniteProxies
  • KindProxy
  • KocerRoxy
  • Kookey
  • LemonBright
  • LemonLabs
  • LemonPrime
  • LightningProxies
  • LudaxProxy
  • MagneticProxy
  • MangoProxy
  • MarsProxies
  • Maskify
  • MoMoProxy
  • NSocks
  • NextProxy
  • NodeMaven
  • NodeProxy
  • NovProxy
  • NovaProxy
  • Novada
  • Oxylabs
  • PROXYON
  • PROXYSCRAPE
  • PROXYWING_BASIC
  • PSBProxy
  • PacketStream
  • PrivateByte
  • Proxies.fo
  • ProxiesVision
  • Proxio
  • Proxiware
  • Proxmint
  • Proxy-Cheap
  • Proxy-Seller
  • Proxy302
  • Proxy4U
  • ProxyEmpire
  • ProxyGeo
  • ProxyHat
  • ProxyRack
  • ProxyStyler
  • ProxyWing
  • Proxying
  • Proxyma
  • PuraRoute
  • Q2IP
  • QUANTICDATA
  • RH7Proxy
  • RainProxy
  • RapidProxy
  • RealProxy
  • ResiProxies
  • RoamProxy
  • RolaProxy
  • SPYDERPROXY_BASIC
  • SPYDERPROXY_PREMIUM
  • Shifter
  • Smartproxy
  • SpyderProxy
  • StrikeProxy
  • SwiftProxy
  • TalorData
  • Thordata
  • ThunderProxy
  • TrueProxies
  • TrustProxy
  • VantageProxies
  • VibeProxies
  • VitalData
  • VitalExclusive
  • VitalProxy
  • YumiProxy
  • ZENPROXY_LITE
  • ZENPROXY_PREMIUM
IPv4 market

Path

1 · Holder
Korea Telecom
2 · Leased from
not leased
3 · Announced by
AS4766 Korea Telecom
since May 2005 · 21.5 yr ago
4 · Use
VPN servicesnamed VPN Gate
Residential

Operators, sellers and brokers

VPN services

NameParentIn 221.144.0.0/12/24s
VPN GateUniversity of Tsukuba
46<0.01%
45

Lineage

How this block came to its use, oldest first. The whole IPv4 market →

221.144.0.0/12

From the registry to its use

  1. Jul 18, 2003
    Route object
    AS4766 Korea Telecom
    RADB route object for AS4766 Korea Telecom, maintainer MAINT-AS4766
  2. May 9, 2005– Nov 9, 2026
    Announced
    AS4766 Korea Telecom
    Internet provider
  3. today
    Registry record
    Korea Telecom
    ALLOCATED PORTABLE
    221.144.0.0/12
  4. today
    Used
    VPN Gate
    VPN

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
PrefixOriginTypeAnonymizer addressesOperatorProxy exitsHolderRPKI
221.144.0.0/13
since Dec 2009
AS4766Residential24<0.01%VPNVPN servicesoperated by VPN Gate2,972
130 always on
Korea Telecom
221.144.37.0/24
since Jan 2009
AS4766Residential1Korea Telecom
221.144.152.0/24
since Jan 2012
AS55622BusinessKorea Telecom
221.144.191.0/24
since Feb 2024
AS152198BusinessKorea Telecom
221.145.178.0/24
since Feb 2013
AS45400ResidentialKorea Telecom
221.145.224.0/24
since Sep 2012
AS4766ResidentialKorea Telecom
221.146.17.0/24
since Aug 2012
AS4766ResidentialKorea Telecom
221.146.193.0/24
since Jan 2007
AS9856BusinessKorea Telecom
221.146.229.0/24
since Oct 2014
AS9972HostingKorea Telecom
221.147.50.0/24
since Aug 2025
AS152214BusinessKorea Telecom
221.147.51.0/24
since Nov 2008
AS4766ResidentialKorea Telecom
221.147.52.0/24
since Nov 2008
AS4766ResidentialKorea Telecom
221.147.53.0/24
since Nov 2008
AS4766ResidentialKorea Telecom
221.147.54.0/24
since Nov 2008
AS4766ResidentialKorea Telecom
221.147.55.0/24
since Nov 2008
AS4766ResidentialKorea Telecom
221.147.83.0/24
since May 2005
AS9526BusinessKorea Telecom
221.147.101.0/24
since Feb 2022
AS9850BusinessKorea Telecom
221.149.141.0/24
since Jul 2010
AS10185BusinessKorea Telecom
221.149.230.0/24
since Sep 2008
AS45360BusinessKorea Telecom
221.149.240.0/22
since Jan 2026
AS131842BusinessKorea Telecom
221.150.21.0/24
since May 2005
AS10184BusinessKorea Telecom
221.150.114.0/24
since Oct 2019
AS55592HostingKorea Telecom
221.150.156.0/23
since Nov 2008
AS4766ResidentialKorea Telecom
221.150.175.0/25AS4766ResidentialKorea Telecom
221.150.196.0/24
since Nov 2020
AS38697BusinessKorea Telecom
221.151.165.0/24
since Oct 2016
AS38405Business7Korea Telecom
221.151.172.0/24
since Dec 2025
AS38112BusinessKorea Telecom
221.151.180.0/24
since Jan 2023
AS9526BusinessKorea Telecom
221.152.0.0/13
since Dec 2009
AS4766Residential22<0.01%VPNVPN servicesoperated by VPN Gate3,585
155 always on
Korea Telecom
221.153.249.0/24
since Nov 2008
AS4766Residential1Korea Telecom
221.154.82.0/24
since Jan 2015
AS4766ResidentialKorea Telecom
221.154.83.0/24
since Jan 2015
AS4766ResidentialKorea Telecom
221.154.84.0/24
since Jan 2015
AS4766ResidentialKorea Telecom
221.154.85.0/24
since Jan 2015
AS4766ResidentialKorea Telecom
221.154.86.0/24
since Jan 2015
AS4766ResidentialKorea Telecom
221.154.87.0/24
since Jan 2015
AS4766ResidentialKorea Telecom
221.154.88.0/24
since Jan 2015
AS4766ResidentialKorea Telecom
221.154.89.0/24
since Jan 2015
AS4766Residential13Korea Telecom
221.154.90.0/24
since Jan 2015
AS4766ResidentialKorea Telecom
221.157.100.0/22
since Nov 2008
AS4766ResidentialKorea Telecom
221.157.104.0/21
since Nov 2008
AS4766ResidentialKorea Telecom
221.157.112.0/22
since Nov 2008
AS4766ResidentialKorea Telecom
221.157.116.0/24
since Nov 2008
AS4766ResidentialKorea Telecom
221.157.125.0/24
since Jan 2026
AS152232HostingKorea Telecom
221.157.126.0/24
since Jan 2010
AS4766ResidentialKorea Telecom
221.157.127.0/24
since Jan 2010
AS4766ResidentialKorea Telecom
221.157.128.0/23
since Nov 2008
AS4766ResidentialKorea Telecom
221.158.73.0/24
since May 2005
AS17576BusinessKorea Telecom
221.159.130.0/24
since Dec 2008
AS4766ResidentialKorea Telecom
221.159.186.0/24
since Dec 2008
AS4766ResidentialKorea Telecom
221.159.187.0/24
since Dec 2008
AS4766ResidentialKorea Telecom
221.159.210.0/24
since Jan 2012
AS55622BusinessKorea Telecom

Composition

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

Announced space

Address share

Announced space

Types across the prefix

1,048,576 addresses
TypeAddressesShareRanges
Residential1,042,898>99%109
Business4,3520.42%14
Hosting1,2800.12%5
VPNanonymizer46<0.01%46

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