asn.dev

Observed topology

AS42927 S-NET-AS S-NET Sp. z o.o.

Unclassified RIPE

Upstreams 8 carry this network
Downstreams 22 this network carries
Adjacent (IPv4) 28
Adjacent (IPv6) 13
Upstream graph Who carries AS42927, and who carries them, drawn as a map up to the transit-free core. 2 exchanges Where AS42927 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS42927: the AS immediately before it in a routing path. Ranked by how many paths showed the relationship, which reflects how widely it is used, not how much traffic crosses it.

ASNetworkTypeFamiliesPaths seen
AS9002RETN LimitedUnclassifiedIPv4 IPv6895
AS3356Level 3 Parent, LLCTransitIPv4 IPv6863
AS6939Hurricane Electric LLCTransitIPv4 IPv6291
AS201054Stowarzyszenie e-PoludnieUnclassifiedIPv4 IPv638
AS24482SG.GSHostingIPv4 IPv634
AS29632Netassist International EOODUnclassifiedIPv63
AS24115EquinixHostingIPv42
AS5617Orange Polska Spolka AkcyjnaMobileIPv41

Transit

Downstream networks

All 22

Networks for which AS42927 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS41931EURONET NORBERT SANIEWSKI SPOLKA JAWNAResidentialIPv4207
AS15541Marcin Bochenek trading as CETI s.c.HostingIPv4182
AS197113MAGDALENA ZANETA MARCZUK trading as LCS SYSTEMY TELEINFORMATYCZNEResidentialIPv4 IPv6111
AS57608FIBO SAUnclassifiedIPv4 IPv6110
AS35174Network For Business Sp z o.o.UnclassifiedIPv498
AS199409FarmaProm Polska Sp. z o.o. Sp. KUnclassifiedIPv482
AS204841AVSystem sp. z o. o.UnclassifiedIPv4 IPv682
AS48487LoVo Sp. z o.o.UnclassifiedIPv464
AS203066Aporia Rafal KaczmarczykUnclassifiedIPv460
AS39174Walstead Krakow Sp. z o.o.UnclassifiedIPv459

All 22 downstreams →

Adjacency

Adjacent networks

All 30

Every AS seen directly next to AS42927 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS3356Level 3 Parent, LLCTransitIPv4 IPv61,607
AS9002RETN LimitedUnclassifiedIPv4 IPv61,367
AS6939Hurricane Electric LLCTransitIPv4 IPv6546
AS41931EURONET NORBERT SANIEWSKI SPOLKA JAWNAResidentialIPv4207
AS15541Marcin Bochenek trading as CETI s.c.HostingIPv4194
AS57608FIBO SAUnclassifiedIPv4 IPv6152
AS197113MAGDALENA ZANETA MARCZUK trading as LCS SYSTEMY TELEINFORMATYCZNEResidentialIPv4 IPv6111
AS35174Network For Business Sp z o.o.UnclassifiedIPv498
AS199409FarmaProm Polska Sp. z o.o. Sp. KUnclassifiedIPv482
AS204841AVSystem sp. z o. o.UnclassifiedIPv4 IPv682

All 30 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-11 10:00 UTC by route-views2,rrc00, as seen from 74 BGP vantage points across 73.24M route entries. These are observations from those vantage points, not a complete or authoritative view of the internet.

Inferred from path position, not from any declaration by either party. A network appearing here is carrying these routes; whether that is a paid transit arrangement, a backup, or something else is not something routing data can tell you. Adjacency is not the same as peering. Being next to each other in a path covers paid transit, settlement-free peering and customer connections alike, and routing data cannot distinguish them. Treat this as "these networks exchange routes", nothing more specific.

Cross-check against RIPEstat or BGP.tools, which observe from a different and larger set of vantage points.