AS199133Yanislav Basiuk
As of 11th November 2026, AS199133 (Yanislav Basiuk), a network registered in Russia with RIPE NCC, originates 2 IPv4 prefixes covering 512 addresses and 9 IPv6 prefixes. By IPv4 address space that makes it the 49,318th-largest of the 80,743 networks we see originating IPv4, and the 2,647th-largest of 4,983 in Russia. It is seen behind 1 upstream network, most often AS200993 (Yanislav Basiuk), and in front of 1 downstream network. 91% of its announcements have 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 AS199133 is seen behind, one and two hops out, drawn from real AS paths.
Networks observed one and two hops upstream of AS199133 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
5
adjacent networks
- Upstreams
- 120%
- Peers
- 360%
- Downstreams
- 120%
Networks carrying this one's traffic toward the rest of the internet.
| Network | Country | Relationship | Paths | Vantage pts |
|---|---|---|---|---|
| AS200993Yanislav Basiuk | Peer | 899 | 139 |
Prefixes
The largest blocks AS199133 originates, widest first.
| Prefix | Addresses | Visibility |
|---|---|---|
| 5.175.134.0/24 | 256 | 76/76 |
| 5.175.236.0/24 | 256 | 76/76 |
| 2a14:7583:a000::/38 | 67.1M × /64 | 63/63 |
| 2a0d:d940:1100::/40 | 16.8M × /64 | 63/63 |
| 2a0d:d940:1300::/40 | 16.8M × /64 | 63/63 |
| 2a0d:d940:1f00::/40 | 16.8M × /64 | 63/63 |
| 2a12:4141:fb00::/40 | 16.8M × /64 | 62/63 |
| 2a0d:d940:50::/47 | 131k × /64 | 61/63 |
| 2a0d:d940:52::/47 | 131k × /64 | 61/63 |
| 2a06:de00:a3::/48 | 65.5k × /64 | 62/63 |
Routing health
How AS199133'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
- Valid90.9%10
- Invalid0.0%0
- No ROA9.1%1
Propagation
- Globally propagated90% of full-feed peers or more100.0%11
- Partially propagated40% to 90%0.0%0
- Seen by few peersUnder 40%0.0%0
Prefix sizes
IPv4 — 2 prefixes
IPv6 — 9 prefixes
- /3867.1M × /6411.1%1
- /4016.8M × /6444.4%4
- /47131k × /6422.2%2
- /4865.5k × /6422.2%2
Recent changes
Announcements that started or stopped since 12th Oct 2026.
- Announced2a06:de00:a3::/4825th Oct 2026
- Announced2a0d:d940:50::/4725th Oct 2026
- Announced2a0d:d940:52::/4725th Oct 2026
- Announced2a12:4141:fb00::/4025th Oct 2026
- Withdrawn2a06:de00:a3::/4825th Oct 2026
- Withdrawn2a0d:d940:50::/4725th Oct 2026
- Withdrawn2a0d:d940:52::/4725th Oct 2026
- Withdrawn2a12:4141:fb00::/4025th Oct 2026
- Announced2a0d:d940:1100::/4019th Oct 2026
- Announced2a0d:d940:1300::/4019th Oct 2026
- Announced2a0d:d940:1f00::/4019th Oct 2026
- Withdrawn2a0d:d940:5e::/4819th Oct 2026
9 announced and 11 withdrawn in all; the most recent are shown.
Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.