asn.dev

Observed topology

AS212261 Stowarzyszenie e-Poludnie

Unclassified RIPE

Upstreams 0 carry this network
Downstreams 16 this network carries
Adjacent (IPv4) 18
Adjacent (IPv6) 8
Upstream graph Who carries AS212261, and who carries them, drawn as a map up to the transit-free core. 0 exchanges Where AS212261 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS212261: 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.

No upstream observed. Typical for a tier-1 network that buys transit from nobody.

Transit

Downstream networks

All 16

Networks for which AS212261 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS15969Systemia.pl Sp. z o.o.UnclassifiedIPv4 IPv6208
AS51944DARIUSZ WESOLOWSKI trading as PROMEDIA NOWICKI WESOLOWSKI Sp.J.ResidentialIPv4 IPv6196
AS59444Andrzej Szreter AMSNETResidentialIPv4175
AS198906Grabowski MariuszUnclassifiedIPv4113
AS197961Stowarzyszenie e-PoludnieUnclassifiedIPv4 IPv693
AS3169Jacek Pasek BRK Network DevicesResidentialIPv434
AS198537Kamil Turon trading as KAMNETResidentialIPv428
AS57536MICROLINK Laszczyk MichalResidentialIPv4 IPv627
AS202478Malborskie Swiatlowody sp. z o. o.ResidentialIPv420
AS203255NETResidentialIPv615

All 16 downstreams →

Adjacency

Adjacent networks

All 19

Every AS seen directly next to AS212261 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS3356Level 3 Parent, LLCTransitIPv4 IPv6591
AS201053Stowarzyszenie e-PoludnieUnclassifiedIPv4 IPv6259
AS15969Systemia.pl Sp. z o.o.UnclassifiedIPv4 IPv6208
AS51944DARIUSZ WESOLOWSKI trading as PROMEDIA NOWICKI WESOLOWSKI Sp.J.ResidentialIPv4 IPv6196
AS59444Andrzej Szreter AMSNETResidentialIPv4175
AS198906Grabowski MariuszUnclassifiedIPv4113
AS197961Stowarzyszenie e-PoludnieUnclassifiedIPv4 IPv693
AS9141P4 Sp. z o.o.MobileIPv4 IPv689
AS3169Jacek Pasek BRK Network DevicesResidentialIPv436
AS198537Kamil Turon trading as KAMNETResidentialIPv430

All 19 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-26 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.14M 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.