AS201730 DataSpring Cloud4com s.r.o.

DataSpring Cloud4com s.r.o. · registered in Czechia

IPv4 addresses5,3766 prefixes · <0.001% of announced IPv4

Rank in Czechia#103largest network in CZ by IPv4 space, of 570 · 0.06% of CZ

Rank worldwide#13,049of 79,396 networks with IPv4

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

CountryCzechia599 ASNs registered there

Open AS201730 in ASN lookup Look up an IP in this network (37.221.88.1) All networks in Czechia

IPv4 prefixes

All 6 prefixes, in address order.

37.221.88.0/22
185.65.92.0/22
185.78.100.0/22
185.138.244.0/22
185.146.148.0/22
194.169.252.0/24

IPv6 prefixes

All 1 prefix.

2a03:1aa0::/32

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AS41453#105 TRESTEL-CZ-ASN SITEL spol. s r.o.5,120

AS31349#106 a-net a-net Liberec s.r.o.5,120

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