AS2852 CESNET z.s.p.o. 🇨🇿 CZ
Announcing 27 prefixes, seen at the RIS collectors.
IPv4 prefixes
26
858,112 (3,352 × /24)
IPv6 prefixes
1
8 × /32
Upstreams
10
transit providers observed
Peers
24
settlement-free adjacencies
Downstreams
18
transit customers observed
Customer cone
33
ASes reachable through it
Registry and operator data
- AS number
- AS2852
- Name
- CESNET z.s.p.o.
- Organisation
- CESNET
- Country
- 🇨🇿 CZ
- RIR
- RIPENCC
- Allocated
- 1993-12-20
- Network type
- Educational/Research
- Traffic levels
- 500-1000Gbps
- Scope
- Europe
- Peering policy
- Selective
- IRR as-set
- RIPE::AS2852:AS-CESNET-GOOGLE
- Website
- https://www.cesnet.cz
- Looking glass
- https://lg.cesnet.cz
- PeeringDB
- net/660
- Exchanges
- 3
RPKI coverage of this AS
Its own announcements, validated against the current ROA set
Announced prefixes
1 in total
| Prefix | RPKI | Peers | Sample path | First seen |
|---|---|---|---|---|
| 2001:718::/29 v6 | RPKI valid | 37 | 33332852 | 2026-09-18 |