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AS201132Mateusz Sikorski trading as MSCode

PolandRegistryRIPE NCCTypeContent

As of 27th September 2026, AS201132 (Mateusz Sikorski trading as MSCode), a content network registered in Poland with RIPE NCC, originates 2 IPv4 prefixes covering 512 addresses and 3 IPv6 prefixes. By IPv4 address space that makes it the 48,558th-largest of the 79,525 networks we see originating IPv4, and the 1,066th-largest of 2,096 in Poland. It is seen behind 1 upstream network, most often AS214762 (Sebastian Stefanek trading as MatHost.eu), and in front of 1 downstream network. 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

2

IPv6 prefixes

3

IPv4 addresses

512

IPv6 /64s

1.2M

Upstream graph

The networks AS201132 is seen behind, one and two hops out, drawn from real AS paths.

AS201132Toward the internet core
Upstream graph for AS201132: 3 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS201132Mateusz Sikorski …This networkAS214762Sebastian Stefane…AS6204TMRC GROUP SRLAS6939Hurricane Electri…

Networks observed one and two hops upstream of AS201132 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

4

adjacent networks

Upstreams
125%
Peers
250%
Downstreams
125%

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

Upstreams of AS201132
NetworkCountryRelationshipPathsVantage pts
AS214762Sebastian Stefanek trading as MatHost.euPLPeer414144

Prefixes

The largest blocks AS201132 originates, widest first.

Largest prefixes originated by AS201132
PrefixAddressesVisibility
89.144.44.0/2425681/81
188.114.94.0/2425681/81
2a07:54c1:c010::/441M × /6463/64
2a06:9801:50::/4865.5k × /6463/64
2a13:9500:136::/4865.5k × /6463/64

Routing health

How AS201132'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%5
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more100.0%5
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 2 prefixes

IPv6 — 3 prefixes

  • /441M × /6433.3%1
  • /4865.5k × /6466.7%2

Recent changes

Announcements that started or stopped since 28th Aug 2026.

No announcement by AS201132 started or stopped in this period.

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