CESNET

Data as of 2026-07-26
BGP inherited
Cluster stats
Netblocks10
IPv6 4 prefixes (largest 2001:7f8:14::1:1/128)
Registered in Czechia (4) · Germany (1) · Netherlands (1)
All fragments 371 blocks across 46 clusters
Cluster ID214583002
RegistryPEERINGDB
Customersfind customers using this network →
Evidence & provenance ?
Attribution BGP parent (inherited)
Shared handles clustered on 4 shared RIR contact/maintainer handles
Registry names 2 distinct registrant names across these blocks
full provenance (JSON) → · how attribution works · report an issue

Footprint over time

6 weekly snapshots · JSON
10 0 netblocks since 2026-07-05
2026-07-05 peak 10 2026-07-26

IP Ranges (10)

⬇ export CSV
CIDR Org name Registry Status Confidence
80.81.194.214/32 CESNET PEERINGDB ASSIGNED ● high
80.249.209.106/32 CESNET PEERINGDB ASSIGNED ● high
91.210.16.190/32 CESNET PEERINGDB ASSIGNED ● high
91.210.16.191/32 CESNET PEERINGDB ASSIGNED ● high
2001:7f8::b24:0:1/128 CESNET PEERINGDB ASSIGNED ● high
2001:7f8:1::a500:2852:1/128 CESNET PEERINGDB ASSIGNED ● high
2001:7f8:14::1:1/128 CESNET PEERINGDB ASSIGNED ● high
2001:7f8:14::1:2/128 CESNET PEERINGDB ASSIGNED ● high
213.151.92.144/30 CESNET RIPE ASSIGNED PA ● low
213.175.50.192/29 CESNET RIPE ASSIGNED PA ● low

IPv6 ranges (4)

CIDR
2001:7f8:14::1:1/128
2001:7f8:14::1:2/128
2001:7f8:1::a500:2852:1/128
2001:7f8::b24:0:1/128

Network trust

what's this?
RPKI hygiene: A how networks compare →
100.0% of checked blocks have valid RPKI ROA coverage (10 of 10)
No discrepancies found among checked blocks.

NIC Handles

AS2852 DIALTELECOM-MNT DUMY-RIPE DUMY-RIPE