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Data as of Nov 13, 2026

83.208.0.0/16

297 residential-proxy exits · 30 days

O2 Czech Republic, a.s.

Announcement
this exact prefix
RPKI valid
Announced by
AS5610
Type
Residential

Residential-proxy exits

Proxy exits
297
0.45% of its addresses · 30 days
Always-on exits
17
5.7% of its exits
Spread
84 of 256
/24s with at least one exit
Providers
92
selling exits here
Oct 14, 2026 – Nov 12, 2026

Exits seen per day

39K observations

/24s with the most always-on exits

/24Always-on exitsProxy exits
83.208.117.0/2429
83.208.111.0/2427
83.208.118.0/2417
83.208.7.0/2416
83.208.205.0/2415
83.208.113.0/2415
83.208.30.0/2415
83.208.198.0/2415
83.208.179.0/2415
83.208.44.0/2415
83.208.51.0/2415
83.208.72.0/2414
83.208.48.0/2414
83.208.112.0/2413
83.208.9.0/2413
83.208.120.0/2407
83.208.202.0/2407
83.208.200.0/2406
83.208.119.0/2406
83.208.45.0/2406
83.208.13.0/2405
83.208.132.0/2405
83.208.43.0/2405
83.208.176.0/2405

Proxy providers listing exits

  • 2Captcha
  • 711Proxy
  • 9Proxy
  • ASHBURNPROXIES
  • Ake.net
  • AnyIP
  • B2Proxy
  • BartProxies
  • BirdProxies
  • BlurPath
  • BottingTools
  • ByteProxies
  • Byteful
  • CliProxy
  • CoreProxy
  • DataImpulse
  • Decodo
  • EVOPROXY
  • EZProxies
  • EnigmaProxy
  • Evomi
  • FLEETPROXY
  • FastProxy
  • FlashProxy
  • GSocks
  • Geonix
  • Geonode
  • GloryCloud
  • GoProxies
  • GonzoProxy
  • HydraProxy
  • INSTANTSOCKS_PREMIUM
  • IPFly
  • IPOasis
  • IPPeak
  • IPRoyal
  • Infatica
  • InfiniteProxies
  • KindProxy
  • KocerRoxy
  • LemonBright
  • LemonLabs
  • LightningProxies
  • LudaxProxy
  • MangoProxy
  • MarsProxies
  • MoMoProxy
  • NextProxy
  • NiuProxy
  • NodeMaven
  • NodeProxy
  • NovProxy
  • NovaProxy
  • Novada
  • Oxylabs
  • PROXYSCRAPE
  • PacketStream
  • PrivateByte
  • Proxiware
  • Proxmint
  • Proxy-Cheap
  • Proxy-Seller
  • Proxy302
  • Proxy4U
  • ProxyEmpire
  • ProxyGeo
  • ProxyHat
  • ProxyRack
  • ProxyWing
  • Proxying
  • Proxyma
  • PuraRoute
  • RH7Proxy
  • RainProxy
  • RapidProxy
  • RoamProxy
  • SPYDERPROXY_PREMIUM
  • Shifter
  • Smartproxy
  • StrikeProxy
  • SwiftProxy
  • TORCHPROXIES_X
  • Thordata
  • ThunderProxy
  • VantageProxies
  • VibeProxies
  • VitalData
  • VitalExclusive
  • VitalProxy
  • Webshare
  • ZENPROXY_LITE
  • ZENPROXY_PREMIUM

Announcements

More specific

Announcements inside

PrefixOriginTypeProxy exitsHolderRPKI
83.208.0.0/18
since May 2005
AS5610Residential111
6 always on
O2 Czech Republic, a.s.
83.208.64.0/18
since May 2005
AS5610Residential91
8 always on
O2 Czech Republic, a.s.
83.208.128.0/19
since May 2005
AS5610Residential8O2 Czech Republic, a.s.
83.208.220.0/22
since Aug 2025
AS5610Residential1O2 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
└ 83.208.200.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAOct 7, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.201.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAOct 7, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.202.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAOct 7, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.203.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAOct 7, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.204.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAOct 7, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.205.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAOct 7, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.206.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAOct 7, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.207.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAOct 7, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.217.0/24256RLANObchodni 1800ASSIGNED PAFeb 24, 2014abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.218.0/24256RLANObchodni 1800ASSIGNED PAFeb 24, 2014abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.219.0/24256RLANObchodni 1800ASSIGNED PAFeb 24, 2014abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.252.0/24256PROfi_Internet_AKTIV_HDU lesa 870ASSIGNED PASep 7, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.253.0/24256KABTELKARVINAU lesa 870ASSIGNED PASep 7, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.254.0/24256KABTELKARVINAU lesa 870ASSIGNED PASep 7, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.255.0/24256KABTELKARVINAU lesa 870ASSIGNED PASep 7, 2004abuse@o2.cz
via CZ-CZNET-20040302
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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