AS12570 O2 Czech Republic, a.s. 🇨🇿 CZ
Announcing 13 prefixes, seen at the RIS collectors.
IPv4 prefixes
11
53,760 (210 × /24)
IPv6 prefixes
2
9 × /32
Upstreams
2
transit providers observed
Peers
0
settlement-free adjacencies
Downstreams
10
transit customers observed
Customer cone
16
ASes reachable through it
Registry and operator data
- AS number
- AS12570
- Name
- O2 Czech Republic, a.s.
- Organisation
- itself s.r.o.
- Country
- 🇨🇿 CZ
- RIR
- RIPENCC
- Allocated
- 1999-07-28
- Network type
- NSP
- Scope
- Europe
- Peering policy
- Selective
- IRR as-set
- AS-NEJCZ-TRANSIT
- Website
- http://www.itself.cz/
- PeeringDB
- net/4348
- Exchanges
- 1
- Facilities
- 7
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 |
|---|---|---|---|---|---|
| AS47232 ISP Alliance a.s. | 🇨🇿 CZ | 76 | 10 | 1 | CAIDA |
| AS16246 O2 Czech Republic, a.s. | 🇨🇿 CZ | 28 | 13 | 1,269 | CAIDA |
Peers
Adjacencies that look settlement-free rather than transit
No peers observed at the collectors.
Downstreams
Networks this one appears to provide transit to
| Network | Country | Cone | IPv4 prefixes | Paths | Source |
|---|---|---|---|---|---|
| AS25192 CZ.NIC, z.s.p.o. | 🇨🇿 CZ | 6 | 8 | 30 | CAIDA |
| AS202979 NGA Services, spol. s r.o. | 🇨🇿 CZ | 2 | 1 | 1 | CAIDA |
| AS213354 INTERNATIONAL HOSTING SOLUTIONS LLP | 🇬🇧 GB | 0 | 6 | 281 | CAIDA |
| AS51424 Jiri Sperl | 🇨🇿 CZ | 0 | 6 | 167 | CAIDA |
| AS204886 Metropolitni sit Humpolec spol. s r.o. | 🇨🇿 CZ | 0 | 1 | 75 | CAIDA |
| AS197798 Net-Connect s.r.o. | 🇨🇿 CZ | 0 | 2 | 63 | CAIDA |
| AS198620 Bralu Jurjanu biedriba | 🇱🇻 LV | 0 | 1 | 42 | CAIDA |
| AS196815 LAN servis s.r.o. | 🇨🇿 CZ | 0 | 1 | 42 | CAIDA |
| AS211334 MASTER IT Technologies, a.s. | 🇨🇿 CZ | 0 | 1 | 41 | 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.