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AS213633SEBEK sp. z o.o

PolandRegistryRIPE NCC

As of 27th September 2026, AS213633 (SEBEK sp. z o.o), a network registered in Poland with RIPE NCC, originates 2 IPv4 prefixes covering 512 addresses. By IPv4 address space that makes it the 48,558th-largest of the 79,523 networks we see originating IPv4, and the 1,066th-largest of 2,096 in Poland. It is seen behind 2 upstream networks, most often AS56694 (LLC Smart Ape) and AS216129 (SEBEK sp. z o.o). Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. 50% of its routes reach at least 90% of full-feed peers, and 1 prefix is also originated by another network.

At a glance

IPv4 prefixes

2

IPv6 prefixes

0

IPv4 addresses

512

IPv6 /64s

0

Upstream graph

The networks AS213633 is seen behind, one and two hops out, drawn from real AS paths.

AS213633Toward the internet core
Upstream graph for AS213633: 6 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS213633SEBEK sp. z o.oThis networkAS56694LLC Smart ApeAS216129SEBEK sp. z o.oAS9002RETN LimitedAS20764CJSC RASCOMAS48729ServerKing B.V.AS60068Datacamp Limited …

Networks observed one and two hops upstream of AS213633 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
240%
Peers
360%
Downstreams
00%

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

Upstreams of AS213633
NetworkCountryRelationshipPathsVantage pts
AS56694LLC Smart ApeRUPeer11181
AS216129SEBEK sp. z o.oPLPeer2323

Prefixes

The largest blocks AS213633 originates, widest first.

Largest prefixes originated by AS213633
PrefixAddressesVisibility
31.57.117.0/2425653/81
213.152.43.0/2425681/81

Routing health

How AS213633'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%2
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more50.0%1
  • Partially propagated40% to 90%50.0%1
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 2 prefixes

Recent changes

Announcements that started or stopped since 28th Aug 2026.

No announcement by AS213633 started or stopped in this period.

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