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Data as of Nov 7, 2026

80.251.250.0/24

1 residential-proxy exit · 30 days

O2 Czech Republic, a.s.

Announcement
80.251.240.0/20
RPKI valid
Announced by
AS42908
Type
Residential
Risk
0 / 100 · Low

Residential-proxy exits

Proxy exits
1
0.39% of its addresses · 30 days
Providers
2
selling exits here
Oct 8, 2026 – Nov 6, 2026

Exits seen per day

16 observations

Proxy providers listing exits

  • RainProxy
  • Shifter

Registrations in this block

The registry's network records over this block, widest first, each 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
└ 80.251.248.0 - 80.251.253.2551,536CZ-NORDICTELECOMREGIONAL-20051121unknownASSIGNED PAFeb 23, 2006abuse@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
Announced by

Covering announcement 80.251.240.0/20

Prefix
80.251.240.0/20
Announced by
AS42908 O2 Czech Republic, a.s.
Type
Residential
Proxy exits
29
Always-on exits
4
RPKI
RPKI valid
Netname
CZ-CZNET-20051121
Registrant
O2 Czech Republic, a.s.
RIR
RIPE NCC
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