AS50398 FASTCOMMUNICATIONS Fast Communication, s.r.o.

FASTCOMMUNICATIONS Fast Communication, s.r.o. · registered in Czechia

IPv4 addresses3,0722 prefixes · <0.001% of announced IPv4

Rank in Czechia#172largest network in CZ by IPv4 space, of 570 · 0.04% of CZ

Rank worldwide#18,502of 79,396 networks with IPv4

IPv61 x /481 prefixes

CountryCzechia599 ASNs registered there

Open AS50398 in ASN lookup Look up an IP in this network (91.219.44.1) All networks in Czechia

IPv4 prefixes

All 2 prefixes, in address order.

91.219.44.0/22
91.245.0.0/21

IPv6 prefixes

All 1 prefix.

2001:67c:1260::/48

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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