Data as of Nov 11, 2026

121.149.221.0/24

1 anonymizer address · 0.39% · VPN7 residential-proxy exits · 30 days

Korea Telecom

Announcement
No RPKI
Announced by
Type
Residential
>99% of it

Residential-proxy exits

Proxy exits
7
2.7% of its addresses · 30 days
Always-on exits
1
14% of its exits
Providers
36
selling exits here
Oct 12, 2026 – Nov 10, 2026

Exits seen per day

2.7K observations
  • VPN · anonymizer
  • Residential

Proxy providers listing exits

  • Ake.net
  • BartProxies
  • BirdProxies
  • BuyingProxy
  • ByteProxies
  • Byteful
  • CliProxy
  • Datarama
  • EnigmaProxy
  • Evomi
  • FastProxy
  • GSocks
  • Geonix
  • Geonode
  • IPFly
  • IPPeak
  • Infatica
  • InfiniteProxies
  • KocerRoxy
  • LemonPrime
  • MagneticProxy
  • MangoProxy
  • NodeProxy
  • NovProxy
  • NovaProxy
  • PacketStream
  • Proxiware
  • ProxyEmpire
  • ProxyGeo
  • Proxying
  • Proxyma
  • RainProxy
  • Shifter
  • ThunderProxy
  • VantageProxies
  • VitalExclusive
IPv4 market

Path

1 · Holder
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 121.149.221.0/24/24s
VPN GateUniversity of Tsukuba
10.39%
1

Announcements

Less specific

Covering announcements

PrefixOriginTypeProxy exitsHolderRPKI
121.144.0.0/12
since Sep 2009
AS4766Residential7,474
217 always on
Korea Telecom
121.128.0.0/11
since Apr 2006
AS4766Residential14,938
498 always on
Korea Telecom

Composition

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

Announced space

Address share

Announced space

Types across the prefix

256 addresses
TypeAddressesShareRanges
Residential255>99%2
VPNanonymizer10.39%1

Network & registry

Routing timeline

Covering aggregate above, the prefix's own history below

121.144.0.0/13

Routing history

Pattern
Stable
First seen
Dec 2009
Current origin since
Dec 2009 · 17 yr
Origin networks
1