Data as of Nov 9, 2026

217.194.160.0/20

No anonymizer space · no proxy exits in 30 days

O2 Czech Republic, a.s.

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

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
217.194.160.0/204,096CZ-CZNET-20090402O2 Czech Republic, a.s. (ORG-STAN1-RIPE) · CZALLOCATED PANov 14, 2017abuse@o2.cz
└ 217.194.160.0/24256CZ-TERMSNETTERMSnet - ServerHousing subnetASSIGNED PASep 21, 2009abuse@o2.cz
via CZ-CZNET-20090402
└ 217.194.162.0/24256CZ-TERMSNETTERMSnet - 1st O2-DSL customer dynamic IP pool (4th part)ASSIGNED PADec 14, 2009abuse@o2.cz
via CZ-CZNET-20090402
└ 217.194.163.0/24256CZ-TERMSNETTERMSnet - 1st O2-DSL customer dynamic IP pool (5th part)ASSIGNED PADec 14, 2009abuse@o2.cz
via CZ-CZNET-20090402
└ 217.194.164.0/24256CZ-TERMSNETTERMSnet - 1st O2-DSL customer dynamic IP pool (6th part)ASSIGNED PAApr 14, 2010abuse@o2.cz
via CZ-CZNET-20090402
└ 217.194.165.0/24256CZ-TERMSNETTERMSnet - 1st O2-DSL customer dynamic IP pool (7th part)ASSIGNED PAApr 14, 2010abuse@o2.cz
via CZ-CZNET-20090402
└ 217.194.166.0/24256CZ-TERMSNETTERMSnet - 1st O2-DSL customer dynamic IP pool (8th part))ASSIGNED PANov 30, 2012abuse@o2.cz
via CZ-CZNET-20090402
└ 217.194.167.0/24256CZ-TERMSNETTERMSnet - 1st O2-DSL customer dynamic IP pool (9th part))ASSIGNED PAJan 21, 2013abuse@o2.cz
via CZ-CZNET-20090402
└ 217.194.169.0/24256CZ-HOLUBOVNETVaclav KUDLACEK - Holubov-NETASSIGNED PAFeb 16, 2010abuse@o2.cz
via CZ-CZNET-20090402
└ 217.194.173.0/24256CZ-PCINET08Martin Bina - PCINET08ASSIGNED PAApr 10, 2009abuse@o2.cz
via CZ-CZNET-20090402
└ 217.194.174.0/23512CZ-KNIZEKJiri Knizek - PC SERVIS PCKBASSIGNED PAApr 9, 2009abuse@o2.cz
via CZ-CZNET-20090402

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

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