AS203208 CTU_AS4_2 Czech Telecommunication Office

CTU_AS4_2 Czech Telecommunication Office · registered in Czechia

IPv4 addresses7682 prefixes · <0.001% of announced IPv4

Rank in Czechia#420largest network in CZ by IPv4 space, of 570 · <0.01% of CZ

Rank worldwide#42,555of 79,396 networks with IPv4

IPv67 x /32 (458,752 x /48)3 prefixes

CountryCzechia599 ASNs registered there

Open AS203208 in ASN lookup Look up an IP in this network (185.68.212.1) All networks in Czechia

IPv4 prefixes

All 2 prefixes, in address order.

185.68.212.0/23
185.68.214.0/24

IPv6 prefixes

All 3 prefixes.

2a05:1c40::/30
2a05:1c44::/31
2a05:1c46::/32

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IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources