AS25512 CDT-AS CD-Telematika a.s.

CDT-AS CD-Telematika a.s. · registered in Czechia

IPv4 addresses117,76011 prefixes · 0.004% of announced IPv4

Rank in Czechia#11largest network in CZ by IPv4 space, of 570 · 1.42% of CZ

Rank worldwide#1,730of 79,396 networks with IPv4

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

CountryCzechia599 ASNs registered there

Open AS25512 in ASN lookup Look up an IP in this network (81.19.32.1) All networks in Czechia

IPv4 prefixes

All 11 prefixes, in address order.

81.19.32.0/20
82.117.128.0/19
82.202.64.0/18
85.13.64.0/18
85.184.16.0/20
89.203.128.0/17
131.117.192.0/21
185.134.0.0/22
195.146.96.0/19
212.11.96.0/19
213.235.128.0/18

IPv6 prefixes

All 1 prefix.

2001:1a48::/32

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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