asn.dev

Observed topology

AS8374 PLUSNET Plus network operator in Poland

Mobile ARIN Cable/DSL/ISP

Upstreams 18 carry this network
Downstreams 29 this network carries
Adjacent (IPv4) 48
Adjacent (IPv6) 17
Upstream graph Who carries AS8374, and who carries them, drawn as a map up to the transit-free core. 4 exchanges Where AS8374 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 18

Networks observed carrying traffic for AS8374: 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
AS12741Netia SAResidentialIPv4 IPv6340
AS174Cogent Communications, LLCTransitIPv4 IPv6336
AS6939Hurricane Electric LLCTransitIPv4 IPv6139
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv635
AS24482SG.GSHostingIPv4 IPv618
AS34019Hivane AssociationUnclassifiedIPv4 IPv618
AS48362Stadtwerke FeldkirchResidentialIPv4 IPv618
AS212024Marc SchmittUnclassifiedIPv4 IPv618
AS1836green.ch AGResidentialIPv4 IPv617
AS6797GlobalConnect ABUnclassifiedIPv416

All 18 upstreams →

Transit

Downstream networks

All 29

Networks for which AS8374 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS41476Cyfrowy Polsat S.A.UnclassifiedIPv4174
AS204246IN9 MOBILE Sp. z o.o.UnclassifiedIPv4116
AS47672CENTRUM ZASOBOW CYBERPRZESTRZENI SIL ZBROJNYCHUnclassifiedIPv490
AS41004Cyfrowy Polsat S.A.UnclassifiedIPv474
AS21243Polkomtel Sp. z o.o.UnclassifiedIPv459
AS197124Plus Bank S.A.UnclassifiedIPv459
AS39403CMC Poland Sp. z o.o.UnclassifiedIPv458
AS47303Cyfrowy Polsat S.A.UnclassifiedIPv458
AS199069KAPPA Tomasz Kicowski, Beata Staron-KicowskaUnclassifiedIPv458
AS198838VECTOR sp. z o.o.UnclassifiedIPv454

All 29 downstreams →

Adjacency

Adjacent networks

All 51

Every AS seen directly next to AS8374 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS12741Netia SAResidentialIPv4 IPv6837
AS174Cogent Communications, LLCTransitIPv4 IPv6730
AS6939Hurricane Electric LLCTransitIPv4 IPv6270
AS41476Cyfrowy Polsat S.A.UnclassifiedIPv4174
AS204246IN9 MOBILE Sp. z o.o.UnclassifiedIPv4116
AS47672CENTRUM ZASOBOW CYBERPRZESTRZENI SIL ZBROJNYCHUnclassifiedIPv490
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv682
AS41004Cyfrowy Polsat S.A.UnclassifiedIPv474
AS21243Polkomtel Sp. z o.o.UnclassifiedIPv459
AS197124Plus Bank S.A.UnclassifiedIPv459

All 51 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.