AS43037 Seznam.cz, a.s. 🇨🇿 CZ
Announcing 12 prefixes, seen at the RIS collectors.
IPv4 prefixes
6
3,072 (12 × /24)
IPv6 prefixes
6
1 × /32
Upstreams
6
transit providers observed
Peers
14
settlement-free adjacencies
Downstreams
1
transit customers observed
Customer cone
2
ASes reachable through it
Registry and operator data
- AS number
- AS43037
- Name
- Seznam.cz, a.s.
- Organisation
- Seznam.cz, a.s.
- Country
- 🇨🇿 CZ
- RIR
- RIPENCC
- Allocated
- 2007-05-29
- Network type
- Content
- Traffic levels
- 100-200Gbps
- Scope
- Europe
- Peering policy
- Open
- IRR as-set
- AS-SEZNAM-CZ
- Website
- https://www.seznam.cz
- PeeringDB
- net/9895
- Exchanges
- 3
RPKI coverage of this AS
Its own announcements, validated against the current ROA set
Announced prefixes
12 in total
| Prefix | RPKI | Peers | Sample path | First seen |
|---|---|---|---|---|
| 77.75.72.0/23 v4 | RPKI valid | 44 | 3454943037 | 2026-09-18 |
| 77.75.74.0/24 v4 | RPKI valid | 44 | 3454943037 | 2026-09-18 |
| 77.75.75.0/24 v4 | RPKI valid | 44 | 3454943037 | 2026-09-18 |
| 77.75.76.0/23 v4 | RPKI valid | 44 | 3454943037 | 2026-09-18 |
| 77.75.78.0/23 v4 | RPKI valid | 44 | 3454943037 | 2026-09-18 |
| 185.66.188.0/22 v4 | RPKI valid | 44 | 3454943037 | 2026-09-18 |
| 2a02:598::/32 v6 | RPKI valid | 34 | 3454943037 | 2026-09-18 |
| 2a02:598:2::/48 v6 | RPKI valid | 34 | 3454943037 | 2026-09-18 |
| 2a02:598:a::/48 v6 | RPKI valid | 34 | 3454943037 | 2026-09-18 |
| 2a02:598:b::/48 v6 | RPKI valid | 34 | 3454943037 | 2026-09-18 |
| 2a02:598:3333::/48 v6 | RPKI valid | 34 | 3454943037 | 2026-09-18 |
| 2a02:598:4444::/48 v6 | RPKI valid | 34 | 3454943037 | 2026-09-18 |