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
13
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
Upstreams
Networks seen providing transit to this one
| Network | Country | Cone | IPv4 prefixes | Paths | Source |
|---|---|---|---|---|---|
| AS33891 Core-Backbone GmbH | 🇩🇪 DE | 24,650 | 1 | 1 | inferred |
| AS29208 Quantcom, a.s. | 🇨🇿 CZ | 107 | 36 | 46 | CAIDA |
| AS5610 O2 Czech Republic, a.s. | 🇨🇿 CZ | 82 | 67 | 177 | CAIDA |
| AS29632 Netassist International EOOD | 🇧🇬 BG | 42 | 0 | 13 | inferred |
| AS213241 TECHIT.BE SRL | 🇧🇪 BE | 0 | 14 | 7 | inferred |
| AS56662 Marcin Gondek | 🇵🇱 PL | 0 | 0 | 7 | inferred |
Peers
Adjacencies that look settlement-free rather than transit
| Network | Country | Cone | IPv4 prefixes | Paths | Source |
|---|---|---|---|---|---|
| AS6939 Hurricane Electric LLC | 🇺🇸 US | 52,892 | 235 | 107 | CAIDA |
| AS20485 TransTeleCom JSC | 🇷🇺 RU | 28,161 | 85 | 7 | CAIDA |
| AS34549 meerfarbig GmbH & Co. KG | 🇩🇪 DE | 15,380 | 48 | 34 | CAIDA |
| AS24482 SG.GS | 🇸🇬 SG | 4,730 | 45 | 14 | CAIDA |
| AS17639 Converge ICT Solutions Inc. | 🇵🇠PH | 274 | 567 | 8 | CAIDA |
| AS47232 ISP Alliance a.s. | 🇨🇿 CZ | 76 | 10 | 7 | CAIDA |
| AS12779 IT.Gate S.p.A. | 🇮🇹 IT | 75 | 25 | 7 | CAIDA |
| AS1836 green.ch AG | 🇨🇠CH | 44 | 78 | 14 | CAIDA |
| AS34019 Hivane Association | 🇫🇷 FR | 38 | 6 | 14 | CAIDA |
| AS12859 BIT BV | 🇳🇱 NL | 37 | 70 | 13 | CAIDA |
| AS48362 Stadtwerke Feldkirch | 🇦🇹 AT | 15 | 8 | 14 | CAIDA |
| AS29504 Freenet Liberec, z.s. | 🇨🇿 CZ | 0 | 1 | 14 | CAIDA |
| AS212024 Marc Schmitt | 🇫🇷 FR | 0 | 1 | 14 | CAIDA |
Downstreams
Networks this one appears to provide transit to
| Network | Country | Cone | IPv4 prefixes | Paths | Source |
|---|---|---|---|---|---|
| AS200600 Seznam.cz datova centra, s.r.o. | 🇨🇿 CZ | 0 | 1 | 74 | CAIDA |
Relationships marked inferred come from where the two networks sit on the AS paths the collectors see, which is a guess and is wrong for some of them. The rest are stated by CAIDA's published inference over a much wider set of collectors.