asn.dev

Observed topology

AS12540 IDECNET-AS IdecNet S.A.

Unclassified RIPE

Upstreams 6 carry this network
Downstreams 4 this network carries
Adjacent (IPv4) 10
Adjacent (IPv6) 2
Upstream graph Who carries AS12540, and who carries them, drawn as a map up to the transit-free core. 3 exchanges Where AS12540 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS12540: 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
AS29119AIRE NETWORKS DEL MEDITERRANEO SL UNIPERSONALUnclassifiedIPv4 IPv659
AS3356Level 3 Parent, LLCTransitIPv412
AS174Cogent Communications, LLCTransitIPv411
AS6939Hurricane Electric LLCTransitIPv48
AS3303Swisscom (Schweiz) AGResidentialIPv41
AS37721Virtual Technologies & SolutionsResidentialIPv41

Transit

Downstream networks

inferred

Networks for which AS12540 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS200555WiFi Canarias de Telecomunicaciones y Fibra SLUnclassifiedIPv4854
AS44998GOBIERNO DE CANARIASUnclassifiedIPv4 IPv6382
AS202211Manuel Mariposa Consulting SLUnclassifiedIPv4300
AS62104Computer Service Internet Service Provider S.L.UnclassifiedIPv4162

Adjacency

Adjacent networks

observed

Every AS seen directly next to AS12540 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS29119AIRE NETWORKS DEL MEDITERRANEO SL UNIPERSONALUnclassifiedIPv4 IPv61,163
AS200555WiFi Canarias de Telecomunicaciones y Fibra SLUnclassifiedIPv4854
AS202211Manuel Mariposa Consulting SLUnclassifiedIPv4605
AS44998GOBIERNO DE CANARIASUnclassifiedIPv4 IPv6382
AS174Cogent Communications, LLCTransitIPv4358
AS3356Level 3 Parent, LLCTransitIPv4324
AS6939Hurricane Electric LLCTransitIPv4200
AS62104Computer Service Internet Service Provider S.L.UnclassifiedIPv4162
AS3303Swisscom (Schweiz) AGResidentialIPv425
AS37721Virtual Technologies & SolutionsResidentialIPv425

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-13 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 74.40M 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.