asn.dev

Observed topology

AS37575 TMAIS

Unclassified AFRINIC Cable/DSL/ISP

Upstreams 6 carry this network
Downstreams 3 this network carries
Adjacent (IPv4) 8
Adjacent (IPv6) 5
Upstream graph Who carries AS37575, and who carries them, drawn as a map up to the transit-free core. 3 exchanges Where AS37575 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS37575: 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
AS6939Hurricane Electric LLCTransitIPv4 IPv6487
AS8657SERVICOS DE COMUNICACOES E MULTIMEDIA S.A.UnclassifiedIPv4 IPv6154
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv628
AS24482SG.GSHostingIPv4 IPv610
AS37721Virtual Technologies & SolutionsResidentialIPv410
AS25091IP-Max SAUnclassifiedIPv61

Transit

Downstream networks

inferred

Networks for which AS37575 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS328440Banco BAI Cabo Verde, SAUnclassifiedIPv466
AS329138Banco Caboverdiano de Negócios, SA - BCN - Banco Caboverdiano de Negócios, SAUnclassifiedIPv466
AS329173Associação Cabo Verde Internet Exchange PointUnclassifiedIPv466

Adjacency

Adjacent networks

observed

Every AS seen directly next to AS37575 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS6939Hurricane Electric LLCTransitIPv4 IPv6646
AS8657SERVICOS DE COMUNICACOES E MULTIMEDIA S.A.UnclassifiedIPv4 IPv6190
AS328440Banco BAI Cabo Verde, SAUnclassifiedIPv466
AS329138Banco Caboverdiano de Negócios, SA - BCN - Banco Caboverdiano de Negócios, SAUnclassifiedIPv466
AS329173Associação Cabo Verde Internet Exchange PointUnclassifiedIPv466
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv628
AS37721Virtual Technologies & SolutionsResidentialIPv413
AS24482SG.GSHostingIPv4 IPv610
AS25091IP-Max SAUnclassifiedIPv61

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-30 10:00 UTC by route-views2,rrc00, as seen from 76 BGP vantage points across 74.49M 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.