Upstream networks
AS51681 DATIUM SINEASEN S.L.
Residential RIPE Cable/DSL/ISP
Transit
Upstream networks
Networks observed carrying traffic for AS51681: 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.
| AS | Network | Type | Families | Paths seen |
|---|---|---|---|---|
| AS29119 | AIRE NETWORKS DEL MEDITERRANEO SL UNIPERSONAL | Unclassified | IPv4 | 243 |
| AS3356 | Level 3 Parent, LLC | Transit | IPv4 | 183 |
| AS6939 | Hurricane Electric LLC | Transit | IPv4 | 72 |
| AS34549 | meerfarbig GmbH & Co. KG | Hosting | IPv4 | 27 |
| AS24482 | SG.GS | Hosting | IPv4 | 9 |
| AS37721 | Virtual Technologies & Solutions | Residential | IPv4 | 9 |
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 2026-11-11 10:00 UTC by route-views2,rrc00, as seen from 74 BGP vantage points across 73.24M route entries. These are observations from those vantage points, not a complete or authoritative view of the internet.