asn.dev

Observed topology

AS51505 DEI-AS Dimosia Epicheirisi Ilektrismou Anonymi Etaireia

Unclassified RIPE Cable/DSL/ISP

Upstreams 25 carry this network
Downstreams 1 this network carries
Adjacent (IPv4) 23
Adjacent (IPv6) 14
Upstream graph Who carries AS51505, and who carries them, drawn as a map up to the transit-free core. 4 exchanges Where AS51505 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 25

Networks observed carrying traffic for AS51505: 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
AS3491PCCW Global (HK) Ltd.TransitIPv4 IPv690
AS57463NetIX Communications JSCUnclassifiedIPv4 IPv654
AS6939Hurricane Electric LLCTransitIPv426
AS6762TELECOM ITALIA SPARKLE S.p.A.TransitIPv423
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv69
AS3333Reseaux IP Europeens Network Coordination Centre (RIPE NCC)UnclassifiedIPv4 IPv65
AS8280SYNAPSECOM S.A. Provider of Telecommunications and Internet ServicesHostingIPv4 IPv65
AS24482SG.GSHostingIPv4 IPv65
AS48185team.blue NVUnclassifiedIPv4 IPv65
AS48362Stadtwerke FeldkirchResidentialIPv4 IPv65

All 25 upstreams →

Transit

Downstream networks

inferred

Networks for which AS51505 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS47180Dei Optikes Epikoinonies Monoprosopi AEUnclassifiedIPv4 IPv6157

Adjacency

Adjacent networks

All 26

Every AS seen directly next to AS51505 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS47180Dei Optikes Epikoinonies Monoprosopi AEUnclassifiedIPv4 IPv6157
AS3491PCCW Global (HK) Ltd.TransitIPv4 IPv6135
AS57463NetIX Communications JSCUnclassifiedIPv4 IPv699
AS6939Hurricane Electric LLCTransitIPv438
AS6762TELECOM ITALIA SPARKLE S.p.A.TransitIPv435
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv614
AS3333Reseaux IP Europeens Network Coordination Centre (RIPE NCC)UnclassifiedIPv4 IPv68
AS8280SYNAPSECOM S.A. Provider of Telecommunications and Internet ServicesHostingIPv4 IPv68
AS24482SG.GSHostingIPv4 IPv68
AS50300CustodianDC LimitedUnclassifiedIPv4 IPv68

All 26 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.