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Data as of Nov 7, 2026

80.251.240.0/20

29 residential-proxy exits · 30 days

O2 Czech Republic, a.s.

Announcement
this exact prefix
RPKI valid
Announced by
AS42908
Type
Residential
Risk
0 / 100 · Low

Residential-proxy exits

Proxy exits
29
0.71% of its addresses · 30 days
Always-on exits
4
14% of its exits
Spread
6 of 16
/24s with at least one exit
Providers
58
selling exits here
Oct 8, 2026 – Nov 6, 2026

Exits seen per day

17K observations

/24s with the most always-on exits

/24Always-on exitsProxy exits
80.251.244.0/24217
80.251.252.0/2414
80.251.253.0/2411
80.251.254.0/2404
80.251.255.0/2402
80.251.250.0/2401

Proxy providers listing exits

  • 2Captcha
  • 711Proxy
  • Ake.net
  • AnyIP
  • BirdProxies
  • BottingTools
  • ByteProxies
  • Byteful
  • CatProxies
  • CliProxy
  • DataImpulse
  • Decodo
  • EnigmaProxy
  • Evomi
  • FastProxy
  • FlashProxy
  • FloppyData
  • GSocks
  • Geonix
  • Geonode
  • GloryCloud
  • GoProxies
  • GonzoProxy
  • HydraProxy
  • IPFly
  • IPOasis
  • Infatica
  • InfiniteProxies
  • KindProxy
  • LemonBright
  • LemonLabs
  • LightningProxies
  • MangoProxy
  • NodeMaven
  • NodeProxy
  • NovaProxy
  • Oxylabs
  • Proxiware
  • Proxy-Seller
  • ProxyEmpire
  • ProxyGeo
  • ProxyHat
  • ProxyWing
  • Proxyma
  • PuraRoute
  • RainProxy
  • RapidProxy
  • Shifter
  • Smartproxy
  • StrikeProxy
  • SwiftProxy
  • Thordata
  • VantageProxies
  • VibeProxies
  • VitalData
  • VitalExclusive
  • VitalProxy
  • Webshare

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
80.251.240.0/204,096CZ-CZNET-20051121O2 Czech Republic, a.s. (ORG-STAN1-RIPE) · CZALLOCATED PAApr 1, 2025abuse@o2.cz
└ 80.251.240.0/212,048CZ-NORDICTELECOMREGIONAL-20051121unknownASSIGNED PAFeb 13, 2006abuse@o2.cz
via CZ-CZNET-20051121
└ 80.251.248.0 - 80.251.253.2551,536CZ-NORDICTELECOMREGIONAL-20051121unknownASSIGNED PAFeb 23, 2006abuse@o2.cz
via CZ-CZNET-20051121
└ 80.251.254.0/23512CZ-NORDICTELECOMREGIONAL-20051121unknownASSIGNED PAFeb 23, 2007abuse@o2.cz
via CZ-CZNET-20051121

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

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