asn.dev

Observed topology

AS8637 SPAINWISP SpainWISP, S.L.

Unclassified RIPE

Upstreams 32 carry this network
Downstreams 23 this network carries
Adjacent (IPv4) 53
Adjacent (IPv6) 34
Upstream graph Who carries AS8637, and who carries them, drawn as a map up to the transit-free core. 6 exchanges Where AS8637 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 32

Networks observed carrying traffic for AS8637: 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
AS1299Arelion Sweden ABTransitIPv4 IPv666
AS3356Level 3 Parent, LLCTransitIPv4 IPv654
AS6939Hurricane Electric LLCTransitIPv4 IPv652
AS174Cogent Communications, LLCTransitIPv4 IPv620
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv620
AS1836green.ch AGResidentialIPv4 IPv68
AS3333Reseaux IP Europeens Network Coordination Centre (RIPE NCC)UnclassifiedIPv4 IPv68
AS17639Converge ICT Solutions Inc.UnclassifiedIPv4 IPv68
AS24482SG.GSHostingIPv4 IPv68
AS37721Virtual Technologies & SolutionsResidentialIPv4 IPv68

All 32 upstreams →

Transit

Downstream networks

All 23

Networks for which AS8637 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS200064Red digital de telecomunicaciones de las Islas Baleares S.LUnclassifiedIPv4 IPv61,463
AS57910Soluciones Corporativas IP, SLResidentialIPv4 IPv61,302
AS200810CONECTA 3 TELECOM S.L.UnclassifiedIPv4 IPv61,146
AS62412Borecom Networks, S.L.UnclassifiedIPv4 IPv6890
AS207174Jeyca Tecnologica Y Medio Ambiente SLUnclassifiedIPv4837
AS204581MOVIMIENTO TELEVISIVO S.A.UnclassifiedIPv4812
AS203187WGR TELECOMUNICACIONES VALLE DE LOS PEDROCHES SAUnclassifiedIPv4 IPv6634
AS202205FIBRA A LA PORTA, S.L.UnclassifiedIPv4627
AS205823Iwi Telecom S.LUnclassifiedIPv4627
AS202913CLOUDWIFI, SLUnclassifiedIPv4 IPv6612

All 23 downstreams →

Adjacency

Adjacent networks

All 57

Every AS seen directly next to AS8637 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS3356Level 3 Parent, LLCTransitIPv4 IPv62,419
AS1299Arelion Sweden ABTransitIPv4 IPv62,014
AS200064Red digital de telecomunicaciones de las Islas Baleares S.LUnclassifiedIPv4 IPv61,463
AS174Cogent Communications, LLCTransitIPv4 IPv61,417
AS57910Soluciones Corporativas IP, SLResidentialIPv4 IPv61,302
AS6939Hurricane Electric LLCTransitIPv4 IPv61,247
AS200810CONECTA 3 TELECOM S.L.UnclassifiedIPv4 IPv61,146
AS62412Borecom Networks, S.L.UnclassifiedIPv4 IPv6890
AS207174Jeyca Tecnologica Y Medio Ambiente SLUnclassifiedIPv4837
AS204581MOVIMIENTO TELEVISIVO S.A.UnclassifiedIPv4812

All 57 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-08 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.00M 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.