subnet.im

AS216129SEBEK sp. z o.o

PolandRegistryRIPE NCC

As of 12th November 2026, AS216129 (SEBEK sp. z o.o), a network registered in Poland with RIPE NCC, originates 25 IPv4 prefixes covering 6.4k addresses and 8 IPv6 prefixes. By IPv4 address space that makes it the 13,921st-largest of the 80,772 networks we see originating IPv4, and the 225th-largest of 2,109 in Poland. It is seen behind 7 upstream networks, most often AS60068 (Datacamp Limited (CDN77 / DataPacket)) and AS48729 (ServerKing B.V.), and in front of 1 downstream network. Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. 97% 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

25

IPv6 prefixes

8

IPv4 addresses

6.4k

IPv6 /64s

4.3B

Upstream graph

The networks AS216129 is seen behind, one and two hops out, drawn from real AS paths.

AS216129Toward the internet core
Upstream graph for AS216129: 11 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS216129SEBEK sp. z o.oThis networkAS48729ServerKing B.V.AS50979ROUTE 95 LLCAS59796StormWall s.r.o.AS60068Datacamp Limited …AS204957ROUTE 95 LLCAS50263A-Systems Sp. z o…AS1299Arelion (fka. Tel…AS2914NTT America, Inc.AS9002RETN LimitedAS174Cogent Communicat…AS8254GREEN FLOID LLC

Networks observed one and two hops upstream of AS216129 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

17

adjacent networks

Upstreams
741%
Peers
953%
Downstreams
16%

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

Upstreams of AS216129
NetworkCountryRelationshipPathsVantage pts
AS60068Datacamp Limited (CDN77 / DataPacket)GBPeer1,091141
AS48729ServerKing B.V.NLPeer588141
AS59796StormWall s.r.o.SKPeer23478
AS204957ROUTE 95 LLCUSPeer142142
AS50979ROUTE 95 LLCUSPeer141141
AS201814MEVSPACE sp. z o.o.PLPeer141141
AS44901Belcloud LTDBGPeer7878

Prefixes

All 33

The largest blocks AS216129 originates, widest first.

Largest prefixes originated by AS216129
PrefixAddressesVisibility
2.27.253.0/2425677/78
31.56.180.0/2425677/78
31.57.13.0/2425678/78
31.57.117.0/2425626/78
31.58.85.0/2425678/78
31.58.155.0/2425677/78
31.77.241.0/2425678/78
104.234.24.0/2425678/78
107.161.154.0/2425678/78
143.20.155.0/2425678/78

Routing health

How AS216129'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%33
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more97.0%32
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%3.0%1

Prefix sizes

IPv4 — 25 prefixes

IPv6 — 8 prefixes

  • /324.3B × /6412.5%1
  • /4865.5k × /6487.5%7

Recent changes

Announcements that started or stopped since 13th Oct 2026.

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