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Data as of Nov 3, 2026

211.57.0.0/16

1 anonymizer address · <0.01% · VPN337 residential-proxy exits · 30 days

Korea Telecom

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

Residential-proxy exits

Proxy exits
337
0.51% of its addresses · 30 days
Always-on exits
11
3.3% of its exits
Spread
97 of 256
/24s with at least one exit
Providers
73
selling exits here
Oct 4, 2026 – Nov 2, 2026

Exits seen per day

30K observations
  • VPN · anonymizer
  • Residential

/24s with the most always-on exits

/24Always-on exitsProxy exits
211.57.67.0/2426
211.57.2.0/2423
211.57.248.0/24110
211.57.191.0/2414
211.57.218.0/2414
211.57.183.0/2412
211.57.250.0/2412
211.57.233.0/2411
211.57.141.0/2411
211.57.11.0/24093
211.57.187.0/24017
211.57.249.0/24010
211.57.199.0/2406
211.57.27.0/2406
211.57.116.0/2405
211.57.111.0/2405
211.57.174.0/2405
211.57.186.0/2405
211.57.79.0/2405
211.57.198.0/2404
211.57.22.0/2404
211.57.31.0/2404
211.57.77.0/2404
211.57.173.0/2404

Proxy providers listing exits

  • 2Captcha
  • 711Proxy
  • 9Proxy
  • Ake.net
  • AnyIP
  • B2Proxy
  • BartProxies
  • BirdProxies
  • BlurPath
  • BottingTools
  • BuyingProxy
  • ByteProxies
  • Byteful
  • CatProxies
  • CliProxy
  • Datarama
  • Decodo
  • EZProxies
  • EnigmaProxy
  • Evomi
  • FastProxy
  • FlashProxy
  • FlexyProxies
  • FloppyData
  • GSocks
  • Geonix
  • Geonode
  • GloryCloud
  • GoProxies
  • GonzoProxy
  • IPCola
  • IPFly
  • IPOasis
  • IPPeak
  • IPRoyal
  • Infatica
  • InfiniteProxies
  • LemonBright
  • LemonLabs
  • LemonPrime
  • LightningProxies
  • LudaxProxy
  • MagneticProxy
  • MangoProxy
  • MoMoProxy
  • MrScraper
  • NextProxy
  • NodeMaven
  • NodeProxy
  • NovProxy
  • NovaProxy
  • PacketStream
  • PrivateByte
  • Proxio
  • Proxiware
  • Proxy-Seller
  • ProxyEmpire
  • ProxyGeo
  • ProxyHat
  • ProxyRack
  • ProxyWing
  • Proxying
  • Proxyma
  • PuraRoute
  • RainProxy
  • Shifter
  • StrikeProxy
  • Thordata
  • ThunderProxy
  • VantageProxies
  • VibeProxies
  • VitalExclusive
  • VitalProxy
IPv4 market

Path

1 · Holder
Unnamed holder
2 · Leased from
not leased
3 · Announced by
AS4766 Korea Telecom
since Sep 2012 · 14.2 yr ago
4 · Use
VPN servicesnamed VPN Gate
Residential

Operators, sellers and brokers

VPN services

NameParentIn 211.57.0.0/16/24s
VPN GateUniversity of Tsukuba
1<0.01%
1

Lineage

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

211.57.0.0/16

From the registry to its use

  1. Dec 16, 2002
    Route object
    AS3786 LG DACOM Corporation
    RADB route object for AS3786 LG DACOM Corporation, maintainer MAINT-AS3786
    211.57.196.0/23
  2. Jun 4, 2004
    Route object
    AS9318 SK Broadband Co Ltd
    REACH route object for AS9318 SK Broadband Co Ltd, maintainer MAINT-REACH-NOC
  3. Jun 4, 2004
    Route object
    AS9318 SK Broadband Co Ltd
    REACH route object for AS9318 SK Broadband Co Ltd, maintainer MAINT-REACH-NOC
    211.57.0.0/17
  4. Jun 4, 2004
    Route object
    AS9318 SK Broadband Co Ltd
    REACH route object for AS9318 SK Broadband Co Ltd, maintainer MAINT-REACH-NOC
    211.57.128.0/17
  5. May 9, 2005– Sep 8, 2012
    Announced
    AS9768 Korea Telecom
  6. Dec 23, 2005
    Route object
    AS9768 Korea Telecom
    RADB route object for AS9768 Korea Telecom, maintainer MAINT-AS3786
    211.57.36.0/22
  7. May 29, 2006
    Route object
    AS23577 Korea Telecom
    RADB route object for AS23577 Korea Telecom, maintainer MAINT-AS3786
    211.57.228.0/24
  8. Jul 5, 2006
    Route object
    AS23577 Korea Telecom
    RADB route object for AS23577 Korea Telecom, maintainer MAINT-AS3786
    211.57.128.0/24
  9. Jul 5, 2006
    Route object
    AS23577 Korea Telecom
    RADB route object for AS23577 Korea Telecom, maintainer MAINT-AS3786
    211.57.233.0/24
  10. Jul 7, 2006
    Route object
    AS23577 Korea Telecom
    RADB route object for AS23577 Korea Telecom, maintainer MAINT-AS3786
    211.57.142.0/24
  11. Jul 13, 2006
    Route object
    AS23577 Korea Telecom
    RADB route object for AS23577 Korea Telecom, maintainer MAINT-AS3786
    211.57.123.0/24
  12. Jul 24, 2006
    Route object
    AS23577 Korea Telecom
    RADB route object for AS23577 Korea Telecom, maintainer MAINT-AS3786
    211.57.110.0/24
  13. Jul 26, 2006
    Route object
    AS23577 Korea Telecom
    RADB route object for AS23577 Korea Telecom, maintainer MAINT-AS3786
    211.57.91.0/24
  14. Aug 1, 2006
    Route object
    AS23577 Korea Telecom
    RADB route object for AS23577 Korea Telecom, maintainer MAINT-AS3786
    211.57.176.0/24
  15. Aug 1, 2006
    Route object
    AS23577 Korea Telecom
    RADB route object for AS23577 Korea Telecom, maintainer MAINT-AS3786
    211.57.177.0/24
  16. Aug 22, 2006
    Route object
    AS23577 Korea Telecom
    RADB route object for AS23577 Korea Telecom, maintainer MAINT-AS3786
    211.57.181.0/24
  17. Dec 17, 2007
    Route object
    AS17841 National Information Resources Service
    RADB route object for AS17841 National Information Resources Service, maintainer MAINT-AS3786
    211.57.113.0/24
  18. May 4, 2008
    Route object
    AS17842 Kangwon Land,Inc.
    NTTCOM route object for AS17842 Kangwon Land,Inc., maintainer MAINT-HANARO
    211.57.118.0/24
  19. May 4, 2008
    Route object
    AS17842 Kangwon Land,Inc.
    NTTCOM route object for AS17842 Kangwon Land,Inc., maintainer MAINT-HANARO
    211.57.119.0/24
  20. Jan 7, 2010
    Route object
    AS23577 Korea Telecom
    NTTCOM route object for AS23577 Korea Telecom, maintainer MAINT-HANARO
    211.57.61.0/24
  21. Jan 7, 2010
    Route object
    AS45400 Korea Telecom
    NTTCOM route object for AS45400 Korea Telecom, maintainer MAINT-HANARO
    211.57.115.0/24
  22. Jan 7, 2010
    Route object
    AS23577 Korea Telecom
    NTTCOM route object for AS23577 Korea Telecom, maintainer MAINT-HANARO
    211.57.123.0/24
  23. Jan 7, 2010
    Route object
    AS23577 Korea Telecom
    NTTCOM route object for AS23577 Korea Telecom, maintainer MAINT-HANARO
    211.57.128.0/24
  24. Jan 28, 2010
    Route object
    AS45400 Korea Telecom
    RADB route object for AS45400 Korea Telecom, maintainer MAINT-AS3786
    211.57.61.0/24
  25. Jan 28, 2010
    Route object
    AS45400 Korea Telecom
    RADB route object for AS45400 Korea Telecom, maintainer MAINT-AS3786
    211.57.115.0/24
  26. Jan 28, 2010
    Route object
    AS45400 Korea Telecom
    RADB route object for AS45400 Korea Telecom, maintainer MAINT-AS3786
    211.57.198.0/24
  27. Feb 1, 2010
    Route object
    AS17842 Kangwon Land,Inc.
    RADB route object for AS17842 Kangwon Land,Inc., maintainer MAINT-AS4637
    211.57.118.0/23
  28. Dec 23, 2010
    Route object
    AS17842 Kangwon Land,Inc.
    RADB route object for AS17842 Kangwon Land,Inc., maintainer MAINT-AS4766
    211.57.118.0/24
  29. Dec 23, 2010
    Route object
    AS17842 Kangwon Land,Inc.
    RADB route object for AS17842 Kangwon Land,Inc., maintainer MAINT-AS4766
    211.57.119.0/24
  30. Jan 5, 2011
    Route object
    AS4766 Korea Telecom
    RADB route object for AS4766 Korea Telecom, maintainer MAINT-AS4766
    211.57.124.0/24
  31. Feb 16, 2011
    Route object
    AS4766 Korea Telecom
    RADB route object for AS4766 Korea Telecom, maintainer MAINT-AS4766
    211.57.231.0/24
  32. May 18, 2011
    Route object
    AS4766 Korea Telecom
    RADB route object for AS4766 Korea Telecom, maintainer MAINT-AS4766
    211.57.242.0/24
  33. Aug 22, 2011
    Route object
    AS10051 Korea Post Information Center
    NTTCOM route object for AS10051 Korea Post Information Center, maintainer MAINT-HANARO
    211.57.42.0/24
  34. Sep 5, 2012– today
    Announced
    AS4766 Korea Telecom
    Internet provider
  35. Sep 13, 2012
    Route object
    AS4766 Korea Telecom
    RADB route object for AS4766 Korea Telecom, maintainer MAINT-AS4766
  36. Jan 2, 2019
    Route object
    AS45400 Korea Telecom
    RADB route object for AS45400 Korea Telecom, maintainer MAINT-AS9318
    211.57.32.0/24
  37. 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

PrefixOriginTypeProxy exitsHolderRPKI
211.57.35.0/24
since Sep 2012
AS4766ResidentialKorea Telecom
211.57.43.0/24
since Jun 2011
AS45400ResidentialKorea Telecom
211.57.54.0/25AS45400ResidentialKorea Telecom
211.57.60.0/25AS45400ResidentialKorea Telecom
211.57.70.0/24
since Jan 2012
AS4766Residential1Korea Telecom
211.57.102.128/25AS4766ResidentialKorea Telecom
211.57.115.0/25AS4766ResidentialKorea Telecom
211.57.115.128/25AS4766ResidentialKorea Telecom
211.57.153.0/24
since Aug 2009
AS17841BusinessKorea Telecom
211.57.165.128/25AS4766ResidentialKorea Telecom
211.57.166.0/24
since Dec 2014
AS4766ResidentialKorea Telecom
211.57.238.0/24
since Jul 2012
AS4766ResidentialKorea Telecom
211.57.238.0/25AS4766ResidentialKorea Telecom
211.57.238.128/25AS4766ResidentialKorea Telecom
211.57.255.0/24
since Mar 2023
AS131868BusinessKorea Telecom

Registrations in this block

The registry's network records over the announcement: those covering it, widest first, then every record inside it, under its parent.

RangeAddressesNetnameHolderTypeCreatedAbuse contact
211.57.0.0/221,024KORNETKorea TelecomALLOCATED PORTABLE—[email protected]
211.57.4.0/221,024KORNETKorea TelecomALLOCATED PORTABLE—[email protected]
211.57.8.0/221,024KORNETKorea TelecomALLOCATED PORTABLE—[email protected]
211.57.12.0/221,024KORNETKorea TelecomALLOCATED PORTABLE—[email protected]
211.57.16.0/221,024KORNETKorea TelecomALLOCATED PORTABLE—[email protected]
211.57.20.0/221,024KORNETKorea TelecomALLOCATED PORTABLE—[email protected]
211.57.24.0/221,024KORNETKorea TelecomALLOCATED PORTABLE—[email protected]
211.57.28.0/221,024KORNETKorea TelecomALLOCATED PORTABLE—[email protected]
211.57.32.0/221,024KORNETKorea TelecomALLOCATED PORTABLE—[email protected]
211.57.36.0/221,024KORNETKorea TelecomALLOCATED PORTABLE—[email protected]
211.57.40.0/212,048KORNETKorea TelecomALLOCATED PORTABLE—[email protected]
211.57.48.0/204,096KORNETKorea TelecomALLOCATED PORTABLE—[email protected]
211.57.64.0/221,024KORNETKorea TelecomALLOCATED PORTABLE—[email protected]
211.57.68.0/221,024KORNETKorea TelecomALLOCATED PORTABLE—[email protected]
211.57.72.0/212,048KORNETKorea TelecomALLOCATED PORTABLE—[email protected]
211.57.80.0/212,048KORNETKorea TelecomALLOCATED PORTABLE—[email protected]
211.57.88.0/221,024KORNETKorea TelecomALLOCATED PORTABLE—[email protected]
211.57.92.0/221,024KORNETKorea TelecomALLOCATED PORTABLE—[email protected]
211.57.96.0/221,024KORNETKorea TelecomALLOCATED PORTABLE—[email protected]
211.57.100.0/221,024KORNETKorea TelecomALLOCATED PORTABLE—[email protected]
211.57.104.0/221,024KORNETKorea TelecomALLOCATED PORTABLE—[email protected]
211.57.108.0/221,024KORNETKorea TelecomALLOCATED PORTABLE—[email protected]
211.57.112.0/204,096KORNETKorea TelecomALLOCATED PORTABLE—[email protected]
211.57.128.0/212,048KORNETKorea TelecomALLOCATED PORTABLE—[email protected]
211.57.136.0/221,024KORNETKorea TelecomALLOCATED PORTABLE—[email protected]
211.57.140.0/221,024KORNETKorea TelecomALLOCATED PORTABLE—[email protected]
211.57.144.0/221,024KORNETKorea TelecomALLOCATED PORTABLE—[email protected]
211.57.148.0/221,024KORNETKorea TelecomALLOCATED PORTABLE—[email protected]
211.57.152.0/221,024KORNETKorea TelecomALLOCATED PORTABLE—[email protected]
211.57.156.0/221,024KORNETKorea TelecomALLOCATED PORTABLE—[email protected]
211.57.160.0/212,048KORNETKorea TelecomALLOCATED PORTABLE—[email protected]
211.57.168.0/221,024KORNETKorea TelecomALLOCATED PORTABLE—[email protected]
211.57.172.0/221,024KORNETKorea TelecomALLOCATED PORTABLE—[email protected]
211.57.176.0/221,024KORNETKorea TelecomALLOCATED PORTABLE—[email protected]
211.57.180.0/221,024KORNETKorea TelecomALLOCATED PORTABLE—[email protected]
211.57.184.0/221,024KORNETKorea TelecomALLOCATED PORTABLE—[email protected]
211.57.188.0/221,024KORNETKorea TelecomALLOCATED PORTABLE—[email protected]
211.57.192.0/221,024KORNETKorea TelecomALLOCATED PORTABLE—[email protected]
211.57.196.0/221,024KORNETKorea TelecomALLOCATED PORTABLE—[email protected]
211.57.200.0/221,024KORNETKorea TelecomALLOCATED PORTABLE—[email protected]
211.57.204.0/221,024KORNETKorea TelecomALLOCATED PORTABLE—[email protected]
211.57.208.0/212,048KORNETKorea TelecomALLOCATED PORTABLE—[email protected]
211.57.216.0/221,024KORNETKorea TelecomALLOCATED PORTABLE—[email protected]
211.57.220.0/221,024KORNETKorea TelecomALLOCATED PORTABLE—[email protected]
211.57.224.0/212,048KORNETKorea TelecomALLOCATED PORTABLE—[email protected]
211.57.232.0/221,024KORNETKorea TelecomALLOCATED PORTABLE—[email protected]
211.57.236.0/221,024KORNETKorea TelecomALLOCATED PORTABLE—[email protected]
211.57.240.0/221,024KORNETKorea TelecomALLOCATED PORTABLE—[email protected]
211.57.244.0/221,024KORNETKorea TelecomALLOCATED PORTABLE—[email protected]
211.57.248.0/221,024KORNETKorea TelecomALLOCATED PORTABLE—[email protected]
211.57.252.0/221,024KORNETKorea TelecomALLOCATED PORTABLE—[email protected]

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
Residential65,023>99%73
Business5120.78%2
VPNanonymizer1<0.01%1

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
IPv4 market

Holder

Holder in the market →
Organization
Not stated by the registry
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