AS29321 O2 Czech Republic, a.s. 🇨🇿 CZ
Announcing 6 prefixes, seen at the RIS collectors.
IPv4 prefixes
5
15,360 (60 × /24)
IPv6 prefixes
1
1 × /32
Upstreams
1
transit providers observed
Peers
0
settlement-free adjacencies
Downstreams
0
transit customers observed
Customer cone
0
ASes reachable through it
Registry and operator data
- AS number
- AS29321
- Name
- O2 Czech Republic, a.s.
- Organisation
- CentroNet
- Country
- 🇨🇿 CZ
- RIR
- RIPENCC
- Allocated
- 2003-07-31
- Network type
- Cable/DSL/ISP
- Traffic levels
- 10-20Gbps
- Scope
- Europe
- Peering policy
- Open
- Website
- http://www.centronet.cz/
- PeeringDB
- net/14751
- Facilities
- 1
RPKI coverage of this AS
Its own announcements, validated against the current ROA set
Announced prefixes
6 in total
| Prefix | RPKI | Peers | Sample path | First seen |
|---|---|---|---|---|
| 80.243.96.0/20 v4 | RPKI valid | 42 | 20229756101624629321 | 2026-09-18 |
| 94.143.168.0/21 v4 | RPKI valid | 42 | 20229756101624629321 | 2026-09-18 |
| 109.239.64.0/20 v4 | RPKI valid | 42 | 20229756101624629321 | 2026-09-18 |
| 194.59.240.0/22 v4 | RPKI valid | 42 | 20229756101624629321 | 2026-09-18 |
| 217.195.160.0/20 v4 | RPKI valid | 42 | 20229756101624629321 | 2026-09-18 |
| 2a02:b20::/32 v6 | RPKI valid | 33 | 20229756101624629321 | 2026-09-18 |