AS57728

Name: AS57728 — CEZNET s.r.o.
Creator: ipdex

CEZNET s.r.o. Unknown registered in Czechia

5IPv4 prefixes

3IPv6 prefixes

100%RPKI-valid

#40,219AS Rank

326/327RIS visibility

#77Rank in Czechia

2019-10-21Allocated

CEZNET s.r.o. (AS57728) — Unknown, registered in Czechia. announces 5 IPv4 prefixes + 3 IPv6 prefixes. Rank in Czechia: #77. Allocated: 2019-10-21.

IPv4 5IPv6 3

Announced prefixes · 8

v4 109.234.40.0/21 valid
v4 185.255.116.0/22 valid
v4 188.122.192.0/19 valid
v4 81.25.16.0/21 valid
v4 81.25.24.0/21 valid
v6 2a00:1800::/32 valid
v6 2a00:1807::/32 valid
v6 2a0a:b6c0::/32 valid

RPKI: rpki.cloudflare.com · 2026-06-17

Routing: 5 IPv4 · 3 IPv6 announced · RIS visibility 326/327 RIS peers · RIPEstat · 2026-06-17

Prefix history

Announced prefixes Source: ipdex daily snapshot · sparse rows, value holds until the next change (steps)

Data table

Day	Announced prefixes
2026-06-12	8
2026-06-13	8

AS topology · Customer cone 1

Providers · 1

AS39791 Telco Pro Services, a. s.

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