Upstream networks
AS15623 CYBERLINK Cyberlink AG
Unclassified RIPE
Transit
Upstream networks
Networks observed carrying traffic for AS15623: 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 |
|---|---|---|---|---|
| AS4455 | IX Reach Ltd | Unclassified | IPv4 IPv6 | 672 |
| AS3356 | Level 3 Parent, LLC | Transit | IPv4 | 360 |
| AS1299 | Arelion Sweden AB | Transit | IPv4 IPv6 | 348 |
| AS6939 | Hurricane Electric LLC | Transit | IPv4 IPv6 | 318 |
| AS3303 | Swisscom (Schweiz) AG | Residential | IPv4 IPv6 | 312 |
| AS174 | Cogent Communications, LLC | Transit | IPv4 IPv6 | 150 |
| AS24482 | SG.GS | Hosting | IPv4 IPv6 | 42 |
| AS34019 | Hivane Association | Unclassified | IPv4 IPv6 | 42 |
| AS48362 | Stadtwerke Feldkirch | Residential | IPv4 IPv6 | 42 |
| AS1836 | green.ch AG | Residential | IPv4 | 36 |
| AS6730 | Sunrise GmbH | Mobile | IPv4 | 36 |
| AS43531 | BSO Network Solutions SAS | Unclassified | IPv4 | 36 |
| AS9002 | RETN Limited | Unclassified | IPv6 | 12 |
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 2026-10-15 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.09M route entries. These are observations from those vantage points, not a complete or authoritative view of the internet.