AS5610 O2 Czech Republic, a.s. 🇨🇿 CZ
Announcing 72 prefixes, seen at the RIS collectors.
IPv4 prefixes
67
2,327,808 (9,093 × /24)
IPv6 prefixes
5
12 × /32
Upstreams
4
transit providers observed
Peers
11
settlement-free adjacencies
Downstreams
41
transit customers observed
Customer cone
82
ASes reachable through it
Registry and operator data
- AS number
- AS5610
- Name
- O2 Czech Republic, a.s.
- Organisation
- O2 Czech Republic
- Country
- 🇨🇿 CZ
- RIR
- RIPENCC
- Allocated
- 1996-04-25
- Network type
- Cable/DSL/ISP
- Traffic levels
- 1-5Tbps
- Scope
- Regional
- Peering policy
- Selective
- IRR as-set
- RIPE::AS-CTIOL
- Website
- https://www.o2.cz
- PeeringDB
- net/39893
- Exchanges
- 1
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 |
|---|---|---|---|---|---|
| AS1299 Arelion (fka. Telia Carrier) | 🇸🇪 SE | 68,730 | 130 | 5,850 | CAIDA |
| AS174 Cogent Communications, LLC | 🇺🇸 US | 65,253 | 3,876 | 2,141 | CAIDA |
| AS199803 ComSource s.r.o. | 🇨🇿 CZ | 65 | 2 | 168 | inferred |
Peers
Adjacencies that look settlement-free rather than transit
| Network | Country | Cone | IPv4 prefixes | Paths | Source |
|---|---|---|---|---|---|
| AS6939 Hurricane Electric LLC | 🇺🇸 US | 53,010 | 235 | 2,150 | CAIDA |
| AS6461 Zayo Bandwidth | 🇺🇸 US | 52,682 | 210 | 52 | CAIDA |
| AS33891 Core-Backbone GmbH | 🇩🇪 DE | 24,590 | 1 | 22 | CAIDA |
| AS39392 SH.cz s.r.o. | 🇨🇿 CZ | 15,815 | 12 | 5 | CAIDA |
| AS24482 SG.GS | 🇸🇬 SG | 4,745 | 45 | 268 | CAIDA |
| AS1764 Next Layer Telecommunications | 🇦🇹 AT | 388 | 70 | 200 | CAIDA |
| AS16019 Vodafone Czech Republic a.s. | 🇨🇿 CZ | 158 | 90 | 1 | CAIDA |
| AS47232 ISP Alliance a.s. | 🇨🇿 CZ | 76 | 10 | 13 | CAIDA |
| AS15935 ha-vel internet s.r.o. | 🇨🇿 CZ | 33 | 13 | 2 | CAIDA |
| AS202297 Skylon Solutions Limited | 🇬🇧 GB | 2 | 2 | 266 | CAIDA |
| AS199490 INTERCONNECT s.r.o. | 🇨🇿 CZ | 2 | 1 | 3 | CAIDA |
| AS29504 Freenet Liberec, z.s. | 🇨🇿 CZ | 0 | 1 | 290 | CAIDA |
Downstreams
Networks this one appears to provide transit to
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.