asn.dev

Observed topology

AS3352 TELEFONICA_DE_ESPANA

Mobile RIPE Cable/DSL/ISP

Upstreams 1 carry this network
Downstreams 94 this network carries
Adjacent (IPv4) 95
Adjacent (IPv6) 4
Upstream graph Who carries AS3352, and who carries them, drawn as a map up to the transit-free core. 2 exchanges Where AS3352 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS3352: 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
AS12956TELEFONICA GLOBAL SOLUTIONS SLTransitIPv4 IPv613,048

Transit

Downstream networks

All 94

Networks for which AS3352 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS16371acens Technologies, S.L.HostingIPv46,753
AS2134Santander Global Technology and Operations, S.L.UnclassifiedIPv43,306
AS200521Ministerio de Transformacion Digital y de la Funcion PublicaUnclassifiedIPv41,014
AS42147Sociedad Estatal Correos y Telegrafos S.A.UnclassifiedIPv4840
AS44707Unicaja Banco SAUnclassifiedIPv4660
AS6813TELEFONICA DE ESPANA S.A.U.UnclassifiedIPv4630
AS202997Bankinter Global Services SAUnclassifiedIPv4539
AS210158AGENCIA PARA LA ADMINITRACION DIGITAL DE LA COMUNIDAD DE MADRIDUnclassifiedIPv4360
AS29661AGENCIA NOTARIAL DE CERTIFICACION S.LUnclassifiedIPv4304
AS31418Telefonica Audiovisual Digital S.L.U.UnclassifiedIPv4300

Adjacency

Adjacent networks

All 95

Every AS seen directly next to AS3352 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS12956TELEFONICA GLOBAL SOLUTIONS SLTransitIPv4 IPv634,879
AS16371acens Technologies, S.L.HostingIPv46,757
AS2134Santander Global Technology and Operations, S.L.UnclassifiedIPv43,306
AS200521Ministerio de Transformacion Digital y de la Funcion PublicaUnclassifiedIPv41,014
AS42147Sociedad Estatal Correos y Telegrafos S.A.UnclassifiedIPv4840
AS44707Unicaja Banco SAUnclassifiedIPv4660
AS6813TELEFONICA DE ESPANA S.A.U.UnclassifiedIPv4630
AS39551Centre de Telecomunicacions i Tecnologies de la Informacio de la Generalitat de CatalunyaUnclassifiedIPv4602
AS202997Bankinter Global Services SAUnclassifiedIPv4539
AS210158AGENCIA PARA LA ADMINITRACION DIGITAL DE LA COMUNIDAD DE MADRIDUnclassifiedIPv4360

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-29 10:00 UTC by route-views2,rrc00, as seen from 76 BGP vantage points across 74.36M 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.