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Data as of Nov 7, 2026

83.208.128.0/19

8 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
8
0.10% of its addresses · 30 days
Spread
3 of 32
/24s with at least one exit
Providers
34
selling exits here
Oct 8, 2026 – Nov 6, 2026

Exits seen per day

1.7K observations

/24s with the most always-on exits

/24Always-on exitsProxy exits
83.208.132.0/2405
83.208.133.0/2402
83.208.152.0/2401

Proxy providers listing exits

  • 2Captcha
  • AnyIP
  • BirdProxies
  • BottingTools
  • ByteProxies
  • Byteful
  • CliProxy
  • Decodo
  • EnigmaProxy
  • FastProxy
  • FlashProxy
  • GonzoProxy
  • HydraProxy
  • IPOasis
  • Infatica
  • LightningProxies
  • MangoProxy
  • NodeProxy
  • NovaProxy
  • Oxylabs
  • Proxiware
  • Proxy-Seller
  • ProxyEmpire
  • ProxyHat
  • Proxyma
  • RainProxy
  • Shifter
  • Thordata
  • ThunderProxy
  • VantageProxies
  • VibeProxies
  • VitalExclusive
  • VitalProxy
  • Webshare

Announcements

Less specific

Covering announcements

PrefixOriginTypeProxy exitsHolderRPKI
83.208.0.0/16
since May 2005
AS5610Residential287
21 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
└ 83.208.128.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PASep 7, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.129.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PASep 7, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.130.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PASep 7, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.131.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PASep 7, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.132.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PASep 7, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.133.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PASep 7, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.134.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PASep 7, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.135.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PASep 7, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.136.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PASep 7, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.137.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PASep 7, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.138.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PASep 7, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.139.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PASep 7, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.140.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PASep 7, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.141.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PASep 7, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.142.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PASep 7, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.143.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PASep 7, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.144.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAOct 7, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.145.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAOct 7, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.146.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAOct 7, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.147.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAOct 7, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.148.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAOct 7, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.149.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAOct 7, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.150.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAOct 7, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.151.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAOct 7, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.152.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAOct 7, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.153.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAOct 7, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.154.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAOct 7, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.155.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAOct 7, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.156.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAOct 7, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.157.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAOct 7, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.158.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAOct 7, 2004abuse@o2.cz
via CZ-CZNET-20040302
└ 83.208.159.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAOct 7, 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