AS44070 MCnet-AS O2 Czech Republic, a.s.

MCnet-AS O2 Czech Republic, a.s. · registered in Czechia

IPv4 addresses4,0962 prefixes · <0.001% of announced IPv4

Rank in Czechia#122largest network in CZ by IPv4 space, of 570 · 0.05% of CZ

Rank worldwide#14,930of 79,396 networks with IPv4

IPv68 x /32 (524,288 x /48)1 prefixes

CountryCzechia599 ASNs registered there

Open AS44070 in ASN lookup Look up an IP in this network (78.41.8.1) All networks in Czechia

IPv4 prefixes

All 2 prefixes, in address order.

78.41.8.0/21
89.31.8.0/21

IPv6 prefixes

All 1 prefix.

2a10:c540::/29

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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