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Data as of Nov 6, 2026

90.176.170.0/24

No anonymizer space · no proxy exits in 30 days

O2 Czech Republic, a.s.

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

Announcements

Less specific

Covering announcements

PrefixOriginTypeProxy exitsHolderRPKI
90.176.128.0/17
since Feb 2019
AS5610Residential110
10 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
90.176.32.0 - 90.183.255.255516,096CZ-CZNET-20061017O2 Czech Republic, a.s. (ORG-STAN1-RIPE) · CZALLOCATED PANov 4, 2015abuse@o2.cz
└ 90.176.170.0/24256NEXTEL-XDSLXDSL Network-ADSLASSIGNED PAMar 11, 2008abuse@o2.cz
via CZ-CZNET-20061017

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
Registry

Holder

Organization
O2 Czech Republic, a.s.
Handle
ORG-STAN1-RIPE
Range
90.176.32.0 - 90.183.255.255
Registration type
ALLOCATED PA
Record created
Nov 4, 2015
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