asn.dev

Observed topology

AS9141 AS9141 P4 Sp. z o.o.

Mobile RIPE Cable/DSL/ISP

Upstreams 2 carry this network
Downstreams 67 this network carries
Adjacent (IPv4) 73
Adjacent (IPv6) 13
Upstream graph Who carries AS9141, and who carries them, drawn as a map up to the transit-free core. 0 exchanges Where AS9141 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS9141: 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
AS1299Arelion Sweden ABTransitIPv4 IPv62,461
AS3356Level 3 Parent, LLCTransitIPv4 IPv62,372

Transit

Downstream networks

All 67

Networks for which AS9141 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS15541Marcin Bochenek trading as CETI s.c.HostingIPv4798
AS35434PirxNet Grzegorz BialasResidentialIPv4 IPv6635
AS15967Nazwa.pl Sp.z.o.o.HostingIPv4265
AS8308PANSTWOWY INSTYTUT BADAWCZYUnclassifiedIPv4238
AS50840Marek Bajerski trading as HITME.PLUnclassifiedIPv4 IPv6218
AS49785P.P.H.U AWISTUnclassifiedIPv4204
AS47544IQ PL Sp. z o.o.HostingIPv4 IPv6202
AS57219Multinet Sp. z o.o.ResidentialIPv4174
AS35174Network For Business Sp z o.o.UnclassifiedIPv4140
AS15470AverTech Sp. z o.o.UnclassifiedIPv4116

All 67 downstreams →

Adjacency

Adjacent networks

All 73

Every AS seen directly next to AS9141 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS3356Level 3 Parent, LLCTransitIPv4 IPv66,497
AS1299Arelion Sweden ABTransitIPv4 IPv66,305
AS8308PANSTWOWY INSTYTUT BADAWCZYUnclassifiedIPv4 IPv61,600
AS35434PirxNet Grzegorz BialasResidentialIPv4 IPv6864
AS15541Marcin Bochenek trading as CETI s.c.HostingIPv4806
AS15967Nazwa.pl Sp.z.o.o.HostingIPv4265
AS47544IQ PL Sp. z o.o.HostingIPv4 IPv6219
AS50840Marek Bajerski trading as HITME.PLUnclassifiedIPv4 IPv6218
AS49785P.P.H.U AWISTUnclassifiedIPv4207
AS50607Stowarzyszenie e-PoludnieUnclassifiedIPv4194

All 73 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-08 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.00M 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.