AS201594 CTU_AS4 Czech Telecommunication Office

CTU_AS4 Czech Telecommunication Office · registered in Czechia

IPv4 addresses2561 prefixes · <0.001% of announced IPv4

Rank in Czechia#496largest network in CZ by IPv4 space, of 570 · <0.01% of CZ

Rank worldwide#59,271of 79,396 networks with IPv4

IPv61 x /32 (65,536 x /48)1 prefixes

CountryCzechia599 ASNs registered there

Open AS201594 in ASN lookup Look up an IP in this network (185.68.215.1) All networks in Czechia

IPv4 prefixes

All 1 prefix, in address order.

185.68.215.0/24

IPv6 prefixes

All 1 prefix.

2a05:1c47::/32

Similar-sized networks in Czechia

ASNNameIPv4 addresses

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AS200474#495 CRFreeNet CRFreeNet, z.s.256

AS203299#497 IHNET NetX Networks a.s.256

AS206159#498 cz-fresh Fresh Data s.r.o.256

AS206468#499 TREBORADICENET-AS Treboradice.net z.s.256

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