The IP API The IP API
// ASN

AS203365

OPTETNETWORK, CZ

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

ASN
AS203365
Organization
CZ-OPTETNETWORK-20160202
Description
OPTETNETWORK, CZ
Country
CZ
Registry (RIR)
RIPE
Created
2016-12-13
Updated
2025-05-21
IPv4 Prefixes
1
IPv6 Prefixes
1

IPv4 Prefixes

1 total
185.136.196.0/22

IPv6 Prefixes

1 total
2a06:fe80::/29

What is AS203365?

AS203365 is an Autonomous System Number (ASN) assigned to CZ-OPTETNETWORK-20160202. An ASN identifies a network or group of IP prefixes operated under a common routing policy in the BGP protocol.

Looking for more ASN data?

Use our ASN Lookup Tool for real-time WHOIS queries, or explore our API documentation to integrate ASN data into your applications.