LAYER3 INTEL
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Data as of Nov 11, 2026

217.197.149.0/25

No anonymizer space · no proxy exits in 30 days

O2 Czech Republic, a.s.

Announcement
217.197.144.0/20
RPKI valid
Announced by
AS42908
Type
Business
Risk
0 / 100 · Low

Registrations in this block

The registry's network records over this block, widest first, each under its parent.

RangeAddressesNetnameHolderTypeCreatedAbuse contact
217.197.144.0/204,096CZ-CZNET-20041021O2 Czech Republic, a.s. (ORG-STAN1-RIPE) · CZALLOCATED PAApr 1, 2025abuse@o2.cz
└ 217.197.149.0/25128NWT-NETunknownASSIGNED PAOct 23, 2004abuse@o2.cz
via CZ-CZNET-20041021

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
Routing timeline

Who has announced 217.197.144.0/20

217.197.144.0/20

Routing history

Pattern
Rotating
First seen
May 2005
Current origin since
Feb 2025 · 1.8 yr
Origin networks
2
Last change of origin
Feb 2025
Recorded history

History

Handoffs
1