asn.dev

Observed topology

AS12357 COMUNITEL VODAFONE ESPANA S.A.U.

Mobile RIPE

Upstreams 2 carry this network
Downstreams 95 this network carries
Adjacent (IPv4) 96
Adjacent (IPv6) 8
Upstream graph Who carries AS12357, and who carries them, drawn as a map up to the transit-free core. 0 exchanges Where AS12357 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS12357: 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
AS12430VODAFONE ESPANA S.A.U.MobileIPv4780
AS32787Akamai Technologies, Inc.HostingIPv4244

Transit

Downstream networks

All 95

Networks for which AS12357 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS51487Networksland SLUnclassifiedIPv41,245
AS209087Oeste Digital S.L.UnclassifiedIPv41,140
AS39155JETNET WIMAX S.AUnclassifiedIPv41,043
AS201748INFOTELECOM NETWORKS SLUnclassifiedIPv41,007
AS206487NEXVOLMAR S.L.UnclassifiedIPv4956
AS57656ALTIA CONSULTORES S.A.UnclassifiedIPv4 IPv6786
AS8311Redestel Networks S.L.UnclassifiedIPv4612
AS206837Air Wifi S.L.UnclassifiedIPv4377
AS212097VIM TELECOMUNICACIONES SLUnclassifiedIPv4 IPv6364
AS29337Dragonet Comunicaciones SLUnclassifiedIPv4292

All 95 downstreams →

Adjacency

Adjacent networks

All 97

Every AS seen directly next to AS12357 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS12430VODAFONE ESPANA S.A.U.MobileIPv4 IPv616,159
AS51487Networksland SLUnclassifiedIPv41,245
AS209087Oeste Digital S.L.UnclassifiedIPv41,140
AS201748INFOTELECOM NETWORKS SLUnclassifiedIPv41,067
AS39155JETNET WIMAX S.AUnclassifiedIPv41,043
AS206487NEXVOLMAR S.L.UnclassifiedIPv4956
AS57656ALTIA CONSULTORES S.A.UnclassifiedIPv4 IPv6786
AS8311Redestel Networks S.L.UnclassifiedIPv4629
AS201746Olivenet Network S.L.ResidentialIPv4627
AS212097VIM TELECOMUNICACIONES SLUnclassifiedIPv4 IPv6491

All 97 adjacent →

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.