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Data as of Nov 7, 2026

121.144.0.0/16

3 anonymizer addresses · <0.01% · VPN393 residential-proxy exits · 30 days

Korea Telecom

Announcement
121.144.0.0/13
No RPKI
Announced by
AS4766
Type
Residential
95% of it

Residential-proxy exits

Proxy exits
393
0.60% of its addresses · 30 days
Always-on exits
12
3.1% of its exits
Spread
168 of 256
/24s with at least one exit
Providers
85
selling exits here
Oct 8, 2026 – Nov 6, 2026

Exits seen per day

38K observations
  • VPN · anonymizer
  • Residential

/24s with the most always-on exits

/24Always-on exitsProxy exits
121.144.185.0/2415
121.144.25.0/2414
121.144.28.0/2414
121.144.114.0/2413
121.144.133.0/2413
121.144.227.0/2413
121.144.217.0/2412
121.144.188.0/2412
121.144.224.0/2412
121.144.246.0/2412
121.144.31.0/2412
121.144.82.0/2411
121.144.45.0/2406
121.144.201.0/2406
121.144.204.0/2406
121.144.128.0/2405
121.144.235.0/2405
121.144.50.0/2405
121.144.220.0/2405
121.144.181.0/2405
121.144.97.0/2405
121.144.117.0/2405
121.144.107.0/2405
121.144.225.0/2405

Proxy providers listing exits

  • 2Captcha
  • 711Proxy
  • Ake.net
  • AnyIP
  • B2Proxy
  • BartProxies
  • BirdProxies
  • BlurPath
  • BottingTools
  • BuyingProxy
  • ByteProxies
  • Byteful
  • CatProxies
  • CliProxy
  • CoreProxy
  • Datarama
  • EZProxies
  • EnigmaProxy
  • Evomi
  • FastProxy
  • FlashProxy
  • FlexyProxies
  • FloppyData
  • GSocks
  • Geonix
  • Geonode
  • GloryCloud
  • GonzoProxy
  • HydraProxy
  • IPFly
  • IPOasis
  • IPPeak
  • IPRoyal
  • Infatica
  • InfiniteProxies
  • KindProxy
  • KocerRoxy
  • Kookey
  • LemonBright
  • LemonLabs
  • LemonPrime
  • LightningProxies
  • LudaxProxy
  • MangoProxy
  • MarsProxies
  • MoMoProxy
  • NSocks
  • NextProxy
  • NodeMaven
  • NodeProxy
  • NovProxy
  • NovaProxy
  • Novada
  • PROXYWING_BASIC
  • PacketStream
  • PrivateByte
  • Proxies.fo
  • ProxiesVision
  • Proxiware
  • Proxy-Seller
  • ProxyEmpire
  • ProxyGeo
  • ProxyHat
  • ProxyRack
  • ProxyWing
  • Proxying
  • Proxyma
  • PuraRoute
  • QUANTICDATA
  • RainProxy
  • RapidProxy
  • RoamProxy
  • Shifter
  • SpyderProxy
  • SwiftProxy
  • TalorData
  • Thordata
  • ThunderProxy
  • TrustProxy
  • VantageProxies
  • VibeProxies
  • VitalData
  • VitalExclusive
  • VitalProxy
  • ZENPROXY_PREMIUM
IPv4 market

Path

1 · Holder
Korea Telecom
2 · Leased from
not leased
3 · Announced by
AS4766 Korea Telecom
since Dec 2009 · 16.9 yr ago
4 · Use
VPN servicesnamed VPN Gate
Residential

Operators, sellers and brokers

VPN services

NameParentIn 121.144.0.0/16/24s
VPN GateUniversity of Tsukuba
3<0.01%
3

Announcements

Less specific

Covering announcements

PrefixOriginTypeProxy exitsHolderRPKI
121.144.0.0/12
since Sep 2009
AS4766Residential6,708
287 always on
Korea Telecom
121.128.0.0/11
since Apr 2006
AS4766Residential13,693
626 always on
Korea Telecom
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

PrefixOriginTypeHolderRPKI
121.144.140.0/22
since Nov 2019
AS9870BusinessKorea Telecom
121.144.140.0/23
since Nov 2019
AS9870BusinessKorea Telecom
121.144.142.0/23
since Nov 2019
AS9870BusinessKorea Telecom
121.144.144.0/22
since Nov 2019
AS9870BusinessKorea Telecom
121.144.144.0/23
since Nov 2019
AS9870BusinessKorea Telecom
121.144.146.0/23
since Nov 2019
AS9870BusinessKorea Telecom
121.144.148.0/23
since Nov 2019
AS9870BusinessKorea Telecom
121.144.148.0/24
since Nov 2019
AS9870BusinessKorea Telecom
121.144.149.0/24
since Nov 2019
AS9870BusinessKorea Telecom
121.144.249.0/24
since Jan 2024
AS18023BusinessKorea Telecom
121.144.250.0/24
since Jan 2024
AS18023BusinessKorea Telecom

Composition

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

Announced space

Address share

Announced space

Types across the prefix

65,536 addresses
TypeAddressesShareRanges
Residential62,46195%6
Business3,0724.7%8
VPNanonymizer3<0.01%3

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Announced by

Covering announcement 121.144.0.0/13

Prefix
121.144.0.0/13
Announced by
AS4766 Korea Telecom
Type
Residential
Anonymizer addresses
19 addresses · <0.01%VPN
Operator
VPN servicesoperated by VPN Gate
Proxy exits
3,398
Always-on exits
133
RPKI
No RPKI
Netname
KORNET-KR
Registrant
Korea Telecom
RIR
APNIC
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