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 IPv6900
AS3356Level 3 Parent, LLCTransitIPv4 IPv6892
AS6939Hurricane Electric LLCTransitIPv4 IPv6291
AS201054Stowarzyszenie e-PoludnieUnclassifiedIPv4 IPv638
AS24482SG.GSHostingIPv4 IPv634
AS29632Netassist International EOODUnclassifiedIPv66
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.HostingIPv4165
AS57608FIBO SAUnclassifiedIPv4 IPv6109
AS197113MAGDALENA ZANETA MARCZUK trading as LCS SYSTEMY TELEINFORMATYCZNEResidentialIPv4 IPv6103
AS35174Network For Business Sp z o.o.UnclassifiedIPv494
AS204841AVSystem sp. z o. o.UnclassifiedIPv4 IPv690
AS199409FarmaProm Polska Sp. z o.o. Sp. KUnclassifiedIPv484
AS48487LoVo Sp. z o.o.UnclassifiedIPv468
AS43472HostingMax LTDUnclassifiedIPv461
AS203066Aporia Rafal KaczmarczykUnclassifiedIPv461

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 IPv61,634
AS9002RETN LimitedUnclassifiedIPv4 IPv61,401
AS6939Hurricane Electric LLCTransitIPv4 IPv6530
AS41931EURONET NORBERT SANIEWSKI SPOLKA JAWNAResidentialIPv4207
AS15541Marcin Bochenek trading as CETI s.c.HostingIPv4179
AS57608FIBO SAUnclassifiedIPv4 IPv6151
AS197113MAGDALENA ZANETA MARCZUK trading as LCS SYSTEMY TELEINFORMATYCZNEResidentialIPv4 IPv6103
AS35174Network For Business Sp z o.o.UnclassifiedIPv494
AS204841AVSystem sp. z o. o.UnclassifiedIPv4 IPv690
AS199409FarmaProm Polska Sp. z o.o. Sp. KUnclassifiedIPv484

All 30 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-01 10:00 UTC by route-views2,rrc00, as seen from 76 BGP vantage points across 74.48M 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.