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Data as of Nov 9, 2026

217.197.144.0/20

5 residential-proxy exits · 30 days

O2 Czech Republic, a.s.

Announcement
this exact prefix
RPKI valid
Announced by
AS42908
Type
Residential
55% of it

Residential-proxy exits

Proxy exits
5
0.12% of its addresses · 30 days
Always-on exits
1
20% of its exits
Spread
4 of 16
/24s with at least one exit
Providers
19
selling exits here
Oct 10, 2026 – Nov 8, 2026

Exits seen per day

546 observations
  • Residential
  • Business

/24s with the most always-on exits

/24Always-on exitsProxy exits
217.197.154.0/2411
217.197.158.0/2402
217.197.151.0/2401
217.197.157.0/2401

Proxy providers listing exits

  • AnyIP
  • BottingTools
  • Byteful
  • Decodo
  • FastProxy
  • GloryCloud
  • IPFly
  • Infatica
  • LemonBright
  • MangoProxy
  • NodeProxy
  • Oxylabs
  • PuraRoute
  • RainProxy
  • Shifter
  • Thordata
  • ThunderProxy
  • VitalExclusive
  • ZENPROXY_PREMIUM

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
217.197.144.0/204,096CZ-CZNET-20041021O2 Czech Republic, a.s. (ORG-STAN1-RIPE) · CZALLOCATED PAApr 1, 2025abuse@o2.cz
└ 217.197.144.0 - 217.197.144.4748CZ-NORDICTELECOMREGIONAL-20041021unknownASSIGNED PADec 13, 2007abuse@o2.cz
via CZ-CZNET-20041021
└ 217.197.144.48 - 217.197.144.11164CZ-NORDICTELECOMREGIONAL-20041021unknownASSIGNED PAJan 11, 2008abuse@o2.cz
via CZ-CZNET-20041021
└ 217.197.144.112/2816CZ-NORDICTELECOMREGIONAL-20041021unknownASSIGNED PAJan 5, 2015abuse@o2.cz
via CZ-CZNET-20041021
└ 217.197.144.128/2664CZ-NORDICTELECOMREGIONAL-20041021unknownASSIGNED PAMar 29, 2007abuse@o2.cz
via CZ-CZNET-20041021
└ 217.197.144.224/2732CZ-NORDICTELECOMREGIONAL-20041021unknownASSIGNED PAMar 29, 2007abuse@o2.cz
via CZ-CZNET-20041021
└ 217.197.145.0 - 217.197.145.111112CZ-NORDICTELECOMREGIONAL-20041021unknownASSIGNED PAJan 11, 2008abuse@o2.cz
via CZ-CZNET-20041021
└ 217.197.145.112/298CZ-NORDICTELECOMREGIONAL-20041021unknownASSIGNED PAJan 11, 2008abuse@o2.cz
via CZ-CZNET-20041021
└ 217.197.145.120/298CZ-NORDICTELECOMREGIONAL-20041021unknownASSIGNED PAOct 21, 2010abuse@o2.cz
via CZ-CZNET-20041021
└ 217.197.145.128/2732CZ-NORDICTELECOMREGIONAL-20041021unknownASSIGNED PAJan 11, 2008abuse@o2.cz
via CZ-CZNET-20041021
└ 217.197.145.160 - 217.197.145.25596INFRA-AWunknownASSIGNED PAJan 5, 2015abuse@o2.cz
via CZ-CZNET-20041021
└ 217.197.146.0/24256BURGET-NETunknownASSIGNED PAMar 29, 2007abuse@o2.cz
via CZ-CZNET-20041021
└ 217.197.147.0 - 217.197.147.223224SVTGROUP-NETunknownASSIGNED PAMar 29, 2007abuse@o2.cz
via CZ-CZNET-20041021
└ 217.197.148.0/2732NWT-NETunknownASSIGNED PAOct 23, 2004abuse@o2.cz
via CZ-CZNET-20041021
└ 217.197.148.32/2732NWT-NETunknownASSIGNED PAJan 11, 2008abuse@o2.cz
via CZ-CZNET-20041021
└ 217.197.148.64/298PLUSLINE-INFRAunknownASSIGNED PAOct 21, 2010abuse@o2.cz
via CZ-CZNET-20041021
└ 217.197.148.80/2816NWT-NETunknownASSIGNED PAOct 21, 2010abuse@o2.cz
via CZ-CZNET-20041021
└ 217.197.148.128/25128BURGET-NETunknownASSIGNED PADec 13, 2007abuse@o2.cz
via CZ-CZNET-20041021
└ 217.197.149.0/25128NWT-NETunknownASSIGNED PAOct 23, 2004abuse@o2.cz
via CZ-CZNET-20041021
└ 217.197.149.128/2816PLUSLINE-CZ-NETunknownASSIGNED PADec 8, 2004abuse@o2.cz
via CZ-CZNET-20041021
└ 217.197.149.144/2816NWT-NETunknownASSIGNED PAJan 11, 2008abuse@o2.cz
via CZ-CZNET-20041021
└ 217.197.149.160/2732NWT-NETunknownASSIGNED PAMar 29, 2007abuse@o2.cz
via CZ-CZNET-20041021
└ 217.197.149.224/2816RAAB-NETunknownASSIGNED PAApr 27, 2006abuse@o2.cz
via CZ-CZNET-20041021
└ 217.197.150.0 - 217.197.150.159160NWT-NETunknownASSIGNED PAOct 23, 2004abuse@o2.cz
via CZ-CZNET-20041021
└ 217.197.150.160/2732SVTGROUP-NETunknownASSIGNED PAJan 11, 2008abuse@o2.cz
via CZ-CZNET-20041021
└ 217.197.150.192/2816OLYMPUS-NETunknownASSIGNED PADec 13, 2007abuse@o2.cz
via CZ-CZNET-20041021
└ 217.197.150.216/298SSOS-NETunknownASSIGNED PAOct 21, 2010abuse@o2.cz
via CZ-CZNET-20041021
└ 217.197.150.224/298TSPREROV-NETunknownASSIGNED PAOct 21, 2010abuse@o2.cz
via CZ-CZNET-20041021
└ 217.197.150.240/2816ITOFFICE-NETunknownASSIGNED PAOct 21, 2010abuse@o2.cz
via CZ-CZNET-20041021
└ 217.197.151.0/2664PLUSLINE-CZ-NETunknownASSIGNED PAOct 23, 2004abuse@o2.cz
via CZ-CZNET-20041021
└ 217.197.151.128/298SLAMENIK-NETunknownASSIGNED PAOct 22, 2010abuse@o2.cz
via CZ-CZNET-20041021
└ 217.197.151.168 - 217.197.151.25588PREROV-NETunknownASSIGNED PAJan 5, 2015abuse@o2.cz
via CZ-CZNET-20041021
└ 217.197.153.0/25128NWT-NETunknownASSIGNED PAOct 24, 2004abuse@o2.cz
via CZ-CZNET-20041021
└ 217.197.153.128/25128PLUSLINE-CZ-NETunknownASSIGNED PAOct 24, 2004abuse@o2.cz
via CZ-CZNET-20041021
└ 217.197.154.0/2732NWT-NETunknownASSIGNED PADec 13, 2007abuse@o2.cz
via CZ-CZNET-20041021
└ 217.197.154.32/298GAHURA-NETunknownASSIGNED PADec 13, 2007abuse@o2.cz
via CZ-CZNET-20041021
└ 217.197.154.40/298PLUSLINE-INFRAunknownASSIGNED PAOct 21, 2010abuse@o2.cz
via CZ-CZNET-20041021
└ 217.197.154.64/2664STANEK-NETunknownASSIGNED PAJan 11, 2008abuse@o2.cz
via CZ-CZNET-20041021
└ 217.197.154.128/25128PLUSLINE-CZ-NETunknownASSIGNED PAApr 27, 2006abuse@o2.cz
via CZ-CZNET-20041021
└ 217.197.155.0/2664PLUSLINE-INFRAunknownASSIGNED PAOct 21, 2010abuse@o2.cz
via CZ-CZNET-20041021
└ 217.197.155.64/2732LUKSA-NETunknownASSIGNED PAOct 22, 2010abuse@o2.cz
via CZ-CZNET-20041021
└ 217.197.155.96/2732PLUSLINE-INFRAunknownASSIGNED PAFeb 5, 2011abuse@o2.cz
via CZ-CZNET-20041021
└ 217.197.155.128/2816MUKM-NETunknownASSIGNED PADec 13, 2007abuse@o2.cz
via CZ-CZNET-20041021
└ 217.197.155.160/2732NWT-NETunknownASSIGNED PADec 13, 2007abuse@o2.cz
via CZ-CZNET-20041021
└ 217.197.155.208/298EMEA-NETunknownASSIGNED PADec 13, 2007abuse@o2.cz
via CZ-CZNET-20041021
└ 217.197.155.216/298PLUSLINE-INFRAunknownASSIGNED PADec 13, 2007abuse@o2.cz
via CZ-CZNET-20041021
└ 217.197.155.224/2732NWT-NETunknownASSIGNED PAMar 29, 2007abuse@o2.cz
via CZ-CZNET-20041021
└ 217.197.157.0/2664NWT-NETunknownASSIGNED PADec 8, 2004abuse@o2.cz
via CZ-CZNET-20041021
└ 217.197.157.64/2664NWT-NETunknownASSIGNED PAJan 11, 2008abuse@o2.cz
via CZ-CZNET-20041021
└ 217.197.157.128/2664NWT-NETunknownASSIGNED PAMar 29, 2007abuse@o2.cz
via CZ-CZNET-20041021
└ 217.197.159.0/2816PILANA-NETunknownASSIGNED PAOct 23, 2004abuse@o2.cz
via CZ-CZNET-20041021
└ 217.197.159.24/298BURGET-NETunknownASSIGNED PAOct 21, 2010abuse@o2.cz
via CZ-CZNET-20041021
└ 217.197.159.64/2816SMUTNY-NETunknownASSIGNED PAJan 11, 2008abuse@o2.cz
via CZ-CZNET-20041021
└ 217.197.159.128/2664KMNET-NETunknownASSIGNED PAOct 21, 2010abuse@o2.cz
via CZ-CZNET-20041021
└ 217.197.159.192/2732BURGET-NETunknownASSIGNED PANov 10, 2004abuse@o2.cz
via CZ-CZNET-20041021
└ 217.197.159.224/2732NWT-NETunknownASSIGNED PANov 10, 2004abuse@o2.cz
via CZ-CZNET-20041021

A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.

Composition

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

Announced space

Address share

Announced space

Types across the prefix

4,096 addresses
TypeAddressesShareRanges
Residential2,25655%19
Business1,84045%43

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Origin network

AS42908

CZ
Name
O2 Czech Republic, a.s.
Type
Internet provider
Registered
May 9, 2007
Domain
nordictelecom.cz
Website
www.nordictelecom.cz/
Spamhaus ASN-DROP
not listed