AS197393 ASRUDOLFNET ISP Alliance a.s.

ASRUDOLFNET ISP Alliance a.s. · registered in Czechia

IPv4 addresses2,0482 prefixes · <0.001% of announced IPv4

Rank in Czechia#193largest network in CZ by IPv4 space, of 570 · 0.02% of CZ

Rank worldwide#21,348of 79,396 networks with IPv4

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

CountryCzechia599 ASNs registered there

Open AS197393 in ASN lookup Look up an IP in this network (185.138.68.1) All networks in Czechia

IPv4 prefixes

All 2 prefixes, in address order.

185.138.68.0/22
193.138.152.0/22

IPv6 prefixes

All 1 prefix.

2a07:bc0::/29

Similar-sized networks in Czechia

ASNNameIPv4 addresses

AS206420#190 KabelServis KABEL servis Praha spol. s r.o.2,048

AS34049#191 WOSACZ-AS H-data, spol. s r.o.2,048

AS44712#192 eHAMnet-AS eHAMnet, s.r.o.2,048

AS205400#194 Vivoconnection VIVO CONNECTION spol. s r.o.2,048

AS206429#195 Corsat CORSAT s.r.o2,048

AS208906#196 SYNOT-CZ SYNOT ICT Services, a.s.2,048

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