AS31615 — ODIDO

Network type: mobile

AS31615 announces 6 IPv4 prefixes covering 475,136 addresses and 0 IPv6 prefixes.

About this network

O2 Czech Republic — a major Czech mobile and fixed operator and former national incumbent.

What it's used for

• Mobile data plus fixed broadband and IPTV for a large Czech subscriber base.

Notable

• A major "eyeball" network — addresses are a mix of mobile devices behind carrier-grade NAT and fixed home connections.
• Owned by the PPF group; its physical network was spun off into the separate infrastructure company CETIN.

Interesting

• Once part of Telefónica, the company kept the O2 brand after PPF acquired it, then separated ownership of the network layer from the retail operator.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 84.241.192.0/18
• 89.205.128.0/17
• 91.141.128.0/17
• 178.225.0.0/16
• 178.227.0.0/16
• 178.228.0.0/14

Upstream networks

• AS50266 Odido Netherlands B.V.

Adjacent networks

• AS50266 Odido Netherlands B.V.

Internet exchanges

• AMS-IX Amsterdam — Amsterdam, Netherlands