subnet.im

AS209155Onehostplanet s.r.o.

CzechiaRegistryRIPE NCC

As of 11th November 2026, AS209155 (Onehostplanet s.r.o.), a network registered in Czechia with RIPE NCC, originates 13 IPv4 prefixes covering 4.1k addresses and 1 IPv6 prefix. By IPv4 address space that makes it the 17,379th-largest of the 80,747 networks we see originating IPv4, and the 138th-largest of 576 in Czechia. It is seen behind 10 upstream networks, most often AS30058 (FDCservers.net) and AS50263 (A-Systems Sp. z o.o.), and in front of 5 downstream networks. 57% 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

13

IPv6 prefixes

1

IPv4 addresses

4.1k

IPv6 /64s

65.5k

Upstream graph

The networks AS209155 is seen behind, one and two hops out, drawn from real AS paths.

AS209155Toward the internet core
Upstream graph for AS209155: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS209155Onehostplanet s.r…This networkAS6939Hurricane Electri…AS15895"Kyivstar" PJSCAS30058FDCservers.netAS50263A-Systems Sp. z o…AS61297Ante Mediam LLCAS1299Arelion (fka. Tel…AS9002RETN LimitedAS6453TATA Communicatio…AS2914NTT America, Inc.AS7768Nuh Ahmet Firat t…AS174Cogent Communicat…AS1820WNET TELECOM USA …

Networks observed one and two hops upstream of AS209155 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

55

adjacent networks

Upstreams
1018%
Peers
4073%
Downstreams
59%

Networks carrying this one's traffic toward the rest of the internet.

Upstreams of AS209155
NetworkCountryRelationshipPathsVantage pts
AS30058FDCservers.netUSPeer68476
AS50263A-Systems Sp. z o.o.PLPeer276105
AS15895"Kyivstar" PJSCUAPeer18137
AS61297Ante Mediam LLCUAPeer15075
AS6939Hurricane Electric LLCUSPeer3515
AS24482SG.GSSGPeer143
AS32590Valve CorporationUSPeer82
AS132337AxclusiveSGAdjacent82
AS24940Hetzner Online GmbHDEPeer82
AS262355VSX NetworksBRPeer11

Prefixes

The largest blocks AS209155 originates, widest first.

Largest prefixes originated by AS209155
PrefixAddressesVisibility
2.59.220.0/221k75/76
45.156.158.0/2425676/76
91.211.89.0/2425676/76
91.211.90.0/2425676/76
91.211.91.0/2425675/76
94.131.217.0/2425676/76
158.173.161.0/2425676/76
185.16.230.0/2425676/76
185.16.231.0/2425676/76
185.237.106.0/2425676/76

Routing health

How AS209155'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

  • Valid57.1%8
  • Invalid0.0%0
  • No ROA42.9%6

Propagation

  • Globally propagated90% of full-feed peers or more100.0%14
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 13 prefixes

IPv6 — 1 prefixes

  • /4865.5k × /64100.0%1

Recent changes

Announcements that started or stopped since 12th Oct 2026.

Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.