AS28725 CETIN-AS CETIN a.s.

CETIN-AS CETIN a.s. · registered in Czechia

IPv4 addresses134,4007 prefixes · 0.004% of announced IPv4

Rank in Czechia#9largest network in CZ by IPv4 space, of 570 · 1.62% of CZ

Rank worldwide#1,455of 79,396 networks with IPv4

IPv69 x /32 (589,824 x /48)2 prefixes

CountryCzechia599 ASNs registered there

Open AS28725 in ASN lookup Look up an IP in this network (80.78.150.1) All networks in Czechia

IPv4 prefixes

All 7 prefixes, in address order.

80.78.150.0/24
85.162.0.0/15
136.238.226.0/24
185.218.92.0/23
194.50.64.0/22
194.147.12.0/22
212.96.180.0/24

IPv6 prefixes

All 2 prefixes.

2a07:1f40::/29
2a0b:bb40::/32

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AS25512#11 CDT-AS CD-Telematika a.s.117,760

AS44546#12 ALFATELECOM-AS ALFA TELECOM s.r.o.110,848

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