AS51521 ASKMNET Resident Control Telco s.r.o.

ASKMNET Resident Control Telco s.r.o. · registered in Czechia

IPv4 addresses5121 prefixes · <0.001% of announced IPv4

Rank in Czechia#465largest network in CZ by IPv4 space, of 570 · <0.01% of CZ

Rank worldwide#52,244of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryCzechia599 ASNs registered there

Open AS51521 in ASN lookup Look up an IP in this network (91.217.96.1) All networks in Czechia

IPv4 prefixes

All 1 prefix, in address order.

91.217.96.0/23

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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