AS210915Dominik Pastorek
CzechiaRegistryRIPE NCCAs of 11th November 2026, AS210915 (Dominik Pastorek), a network registered in Czechia with RIPE NCC, originates 1 IPv4 prefix covering 256 addresses and 3 IPv6 prefixes. By IPv4 address space that makes it the 59,976th-largest of the 80,743 networks we see originating IPv4, and the 490th-largest of 576 in Czechia. It is seen behind 2 upstream networks, most often AS49121 (Infinity Telecom, s.r.o.) and AS37989 (DCS1). Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. 100% of its routes reach at least 90% of full-feed peers.
At a glance
IPv4 prefixes
IPv6 prefixes
IPv4 addresses
IPv6 /64s
Upstream graph
The networks AS210915 is seen behind, one and two hops out, drawn from real AS paths.
Networks observed one and two hops upstream of AS210915 in real AS paths. A thicker line means more vantage points saw that adjacency, so weight tracks how well attested it is — not how much traffic it carries. Adjacency is an observation; whether it is a transit purchase or a settlement-free peering is an inference, and is labelled as one wherever we show it.
Neighbouring networks
11
adjacent networks
- Upstreams
- 218%
- Peers
- 982%
- Downstreams
- 00%
Networks carrying this one's traffic toward the rest of the internet.
| Network | Country | Relationship | Paths | Vantage pts |
|---|---|---|---|---|
| AS49121Infinity Telecom, s.r.o. | CZ | Peer | 258 | 132 |
| AS37989DCS1 |  SG | Peer | 7 | 7 |
Prefixes
The largest blocks AS210915 originates, widest first.
| Prefix | Addresses | Visibility |
|---|---|---|
| 150.251.48.0/24 | 256 | 76/76 |
| 2a0c:b641:638::/45 | 524k × /64 | 63/63 |
| 2a0c:b641:630::/48 | 65.5k × /64 | 63/63 |
| 2a0c:b641:631::/48 | 65.5k × /64 | 63/63 |
Routing health
How AS210915's own announcements validate against RPKI and how far they propagate. The same measures for the whole routing table are on the routing table in numbers.
RPKI origin validation
- Valid100.0%4
- Invalid0.0%0
- No ROA0.0%0
Propagation
- Globally propagated90% of full-feed peers or more100.0%4
- Partially propagated40% to 90%0.0%0
- Seen by few peersUnder 40%0.0%0
Prefix sizes
IPv4 — 1 prefixes
IPv6 — 3 prefixes
- /45524k × /6433.3%1
- /4865.5k × /6466.7%2
Recent changes
Announcements that started or stopped since 12th Oct 2026.
No announcement by AS210915 started or stopped in this period.
Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.