// ASN

AS57728

CEZNET-AS, CZ

Detailed information about the Autonomous System. Need another one? Look up a different ASN.

ASN: AS57728
Organization: CEZNET s.r.o.
Description: CEZNET-AS, CZ
Country: CZ
Registry (RIR): RIPE
Created: 2017-04-28
Updated: 2025-09-12
IPv4 Prefixes: 5
IPv6 Prefixes: 3

IPv4 Prefixes

5 total

109.234.40.0/21
185.255.116.0/22
188.122.192.0/19
81.25.16.0/21
81.25.24.0/21

IPv6 Prefixes

3 total

2a00:1800::/32
2a00:1807::/32
2a0a:b6c0::/32

What is AS57728?

AS57728 is an Autonomous System Number (ASN) assigned to CEZNET s.r.o.. An ASN identifies a network or group of IP prefixes operated under a common routing policy in the BGP protocol.

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