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AS201640Patryk Kulikowski trading as psHost

PolandRegistryRIPE NCCTypeContent

As of 12th November 2026, AS201640 (Patryk Kulikowski trading as psHost), a content network registered in Poland with RIPE NCC, originates 1 IPv4 prefix covering 256 addresses and 3 IPv6 prefixes. By IPv4 address space that makes it the 59,995th-largest of the 80,772 networks we see originating IPv4, and the 1,351st-largest of 2,109 in Poland. It is seen behind 2 upstream networks, most often AS214762 (Sebastian Stefanek trading as MatHost.eu) and AS401896 (MISIU LLC), and in front of 5 downstream networks. 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

1

IPv6 prefixes

3

IPv4 addresses

256

IPv6 /64s

33.7M

Upstream graph

The networks AS201640 is seen behind, one and two hops out, drawn from real AS paths.

AS201640Toward the internet core
Upstream graph for AS201640: 5 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS201640Patryk Kulikowski…This networkAS214762Sebastian Stefane…AS401896MISIU LLCAS6204INTERKVM HOST SRLAS6939Hurricane Electri…AS20473The Constant Comp…

Networks observed one and two hops upstream of AS201640 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

15

adjacent networks

Upstreams
213%
Peers
853%
Downstreams
533%

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

Upstreams of AS201640
NetworkCountryRelationshipPathsVantage pts
AS214762Sebastian Stefanek trading as MatHost.euPLPeer454141
AS401896MISIU LLCUSPeer12763

Prefixes

The largest blocks AS201640 originates, widest first.

Largest prefixes originated by AS201640
PrefixAddressesVisibility
96.62.223.0/2425678/78
2a14:7584:2200::/3933.6M × /6463/64
2a06:9801:23::/4865.5k × /6463/64
2a06:9801:1568::/4865.5k × /6463/64

Routing health

How AS201640'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

  • /3933.6M × /6433.3%1
  • /4865.5k × /6466.7%2

Recent changes

Announcements that started or stopped since 13th Oct 2026.

No announcement by AS201640 started or stopped in this period.

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