asn.dev

Upstream networks

AS203501 EMARSYS-US-AS Emarsys North America, Inc

Hosting RIPE Content

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS203501: 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
AS199236EMARSYS eMarketing Systems GmbHHostingIPv4885
AS1299Arelion Sweden ABTransitIPv4254
AS6461Zayo BandwidthTransitIPv4218

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.

Derived from routing tables collected at 2026-11-05 10:00 UTC by route-views2,rrc00, as seen from 76 BGP vantage points across 73.57M route entries. These are observations from those vantage points, not a complete or authoritative view of the internet.