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Data as of Nov 4, 2026

121.176.0.0/13

11 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
3,135
0.60% of its addresses · listed by providers
Always-on exits
140
4.5% of its exits
Spread
1,366 of 2,048
/24s with at least one exit
Providers
103
selling exits here

/24s with the most always-on exits

/24Always-on exitsProxy exits
121.177.38.0/2426
121.177.247.0/2426
121.181.139.0/2424
121.179.228.0/2423
121.177.96.0/2423
121.182.221.0/2423
121.178.219.0/2422
121.178.136.0/2422
121.178.58.0/2418
121.181.223.0/2418
121.183.9.0/2418
121.176.243.0/2417
121.180.76.0/2417
121.180.149.0/2417
121.179.62.0/2416
121.182.161.0/2416
121.183.186.0/2416
121.180.79.0/2416
121.183.141.0/2416
121.177.152.0/2416
121.179.132.0/2416
121.180.183.0/2415
121.180.244.0/2415
121.177.214.0/2415

Proxy providers listing exits

  • 2Captcha
  • 711Proxy
  • 9Proxy
  • Ake.net
  • AnyIP
  • B2Proxy
  • BartProxies
  • BirdProxies
  • BlurPath
  • BottingTools
  • Bright Data
  • BuyingProxy
  • ByteProxies
  • Byteful
  • CatProxies
  • CliProxy
  • CoreProxy
  • DataImpulse
  • Datarama
  • Decodo
  • EZProxies
  • EnigmaProxy
  • Evomi
  • FastProxy
  • FlashProxy
  • FlexyProxies
  • FloppyData
  • GSocks
  • Geonix
  • Geonode
  • GhostConnect
  • GloryCloud
  • GoProxies
  • GonzoProxy
  • HideProxy
  • HydraProxy
  • IPCola
  • IPFly
  • 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
  • PacketStream
  • PrivateByte
  • Proxies.fo
  • ProxiesVision
  • Proxio
  • Proxiware
  • Proxy-Cheap
  • Proxy-Seller
  • Proxy4U
  • ProxyEmpire
  • ProxyGeo
  • ProxyHat
  • ProxyRack
  • ProxyStyler
  • ProxyWing
  • Proxying
  • Proxyma
  • PuraRoute
  • RainProxy
  • RapidProxy
  • RealProxy
  • ResiProxies
  • RoamProxy
  • RolaProxy
  • Shifter
  • Smartproxy
  • SpyderProxy
  • StrikeProxy
  • SwiftProxy
  • TalorData
  • Thordata
  • ThunderProxy
  • TrueProxies
  • TrustProxy
  • VantageProxies
  • VibeProxies
  • VitalData
  • VitalExclusive
  • VitalProxy
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 121.176.0.0/13/24s
VPN GateUniversity of Tsukuba
11<0.01%
11

Lineage

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

121.176.0.0/13

From the registry to its use

  1. Sep 8, 2009– today
    Announced
    AS4766 Korea Telecom
    as part of 121.176.0.0/12
    121.176.0.0/12
  2. Dec 8, 2009– today
    Announced
    AS4766 Korea Telecom
    Internet provider
  3. Jun 23, 2025
    Route object
    AS152232 kt cloud Co., Ltd
    RADB route object for AS152232 kt cloud Co., Ltd, maintainer MAINT-AS4766
    121.181.70.0/23
  4. today
    Registry record
    Korea Telecom
    ALLOCATED PORTABLE
    121.160.0.0/11
  5. today
    Used
    VPN Gate
    VPN

Announcements

Less specific

Covering announcements

PrefixOriginTypeProxy exitsHolderRPKI
121.176.0.0/12
since Sep 2009
AS4766Residential5,698
267 always on
Korea Telecom
121.160.0.0/11
since Nov 2006
AS4766Residential12,502
595 always on
Korea Telecom
More specific

Announcements inside

PrefixOriginTypeProxy exitsHolderRPKI
121.176.133.0/24
since Jul 2007
AS4766Residential5Korea Telecom
121.176.134.0/24
since Jul 2007
AS4766ResidentialKorea Telecom
121.177.31.0/24
since Aug 2007
AS38427HostingKorea Telecom
121.178.209.0/24
since Mar 2022
AS38681BusinessKorea Telecom
121.181.196.0/24
since Dec 2016
AS38696BusinessKorea Telecom

Composition

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

Announced space

Address share

Announced space

Types across the prefix

524,288 addresses
TypeAddressesShareRanges
Residential523,509>99%18
Business5120.10%2
Hosting2560.05%1
VPNanonymizer11<0.01%11

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