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Data as of Nov 4, 2026

83.208.0.0/18

105 residential-proxy exits · 30 days

O2 Czech Republic, a.s.

Announcement
this exact prefix
RPKI valid
Announced by
AS5610
Type
Residential
Risk
0 / 100 · Low

Residential-proxy exits

Proxy exits
105
0.64% of its addresses · 30 days
Always-on exits
7
6.7% of its exits
Spread
31 of 64
/24s with at least one exit
Providers
63
selling exits here
Oct 5, 2026 – Nov 3, 2026

Exits seen per day

12K observations

/24s with the most always-on exits

/24Always-on exitsProxy exits
83.208.7.0/2417
83.208.51.0/2415
83.208.30.0/2415
83.208.48.0/2414
83.208.9.0/2413
83.208.5.0/2413
83.208.11.0/2411
83.208.15.0/2405
83.208.8.0/2405
83.208.43.0/2405
83.208.46.0/2405
83.208.45.0/2405
83.208.13.0/2405
83.208.47.0/2404
83.208.0.0/2404
83.208.2.0/2404
83.208.10.0/2404
83.208.50.0/2403
83.208.49.0/2403
83.208.12.0/2403
83.208.31.0/2403
83.208.33.0/2403
83.208.44.0/2403
83.208.14.0/2402

Proxy providers listing exits

  • 2Captcha
  • 711Proxy
  • Ake.net
  • AnyIP
  • BartProxies
  • BirdProxies
  • BottingTools
  • BuyingProxy
  • ByteProxies
  • Byteful
  • CatProxies
  • CliProxy
  • DataImpulse
  • Datarama
  • Decodo
  • EnigmaProxy
  • Evomi
  • FastProxy
  • FlashProxy
  • GSocks
  • Geonix
  • Geonode
  • GoProxies
  • GonzoProxy
  • HydraProxy
  • IPFly
  • IPOasis
  • IPPeak
  • IPRoyal
  • Infatica
  • InfiniteProxies
  • LemonBright
  • LemonLabs
  • LightningProxies
  • MangoProxy
  • NodeMaven
  • NodeProxy
  • NovaProxy
  • Novada
  • Oxylabs
  • PacketStream
  • PrivateByte
  • Proxiware
  • Proxy-Seller
  • Proxy4U
  • ProxyEmpire
  • ProxyHat
  • ProxyRack
  • ProxyWing
  • Proxying
  • Proxyma
  • RainProxy
  • Shifter
  • Smartproxy
  • StrikeProxy
  • Thordata
  • ThunderProxy
  • VantageProxies
  • VibeProxies
  • VitalData
  • VitalExclusive
  • VitalProxy
  • Webshare

Announcements

Less specific

Covering announcements

PrefixOriginTypeProxy exitsHolderRPKI
83.208.0.0/16
since May 2005
AS5610Residential273
22 always on
O2 Czech Republic, a.s.

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
83.208.0.0/1665,536CZ-CZNET-20040302O2 Czech Republic, a.s. (ORG-STAN1-RIPE) · CZALLOCATED PAMar 2, 2004abuse@o2.cz
└ 83.208.0.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAJun 23, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.1.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAJun 23, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.2.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAJun 23, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.3.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAJun 23, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.4.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAJun 23, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.5.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAJun 23, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.6.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAJun 23, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.7.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAJun 23, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.8.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAJun 23, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.9.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAJun 23, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.10.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAJun 23, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.11.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAJun 23, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.12.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAJun 23, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.13.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAJun 23, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.14.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAJun 23, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.15.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAJun 23, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.16.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAJul 20, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.17.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAJul 20, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.18.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAJul 20, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.19.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAJul 20, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.20.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAJul 20, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.21.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAJul 20, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.22.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAJul 20, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.23.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAJul 20, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.24.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAJul 20, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.25.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAJul 20, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.26.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAJul 20, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.27.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAJul 20, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.28.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAJul 20, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.29.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAJul 20, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.30.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAJul 20, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.31.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAJul 20, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.32.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAJul 20, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.33.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAJul 20, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.34.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAJul 20, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.35.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAJul 20, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.36.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAJul 20, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.37.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAJul 20, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.38.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAJul 20, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.39.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAJul 20, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.40.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAJul 20, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.41.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAJul 20, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.42.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAJul 20, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.43.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAJul 20, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.44.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAJul 20, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.45.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAJul 20, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.46.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAJul 20, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.47.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAJul 20, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.48.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAAug 10, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.49.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAAug 10, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.50.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAAug 10, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.51.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAAug 10, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.52.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAAug 10, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.53.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAAug 10, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.54.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAAug 10, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.55.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAAug 10, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.56.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAAug 10, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.57.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAAug 10, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.58.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAAug 10, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.59.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAAug 10, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.60.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAAug 10, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.61.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAAug 10, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.62.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAAug 10, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.63.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAAug 10, 2004abuse@o2.cz
via CZ-CZNET-20040302

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

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Origin network

AS5610

CZ
Name
O2 Czech Republic, a.s.
Type
Internet provider
Registered
Apr 25, 1996
Domain
o2.cz
Website
www.o2.cz
Spamhaus ASN-DROP
not listed