Upstream networks
AS15541 CETI-AS CETI ISP, Poland
Hosting RIPE
Transit
Upstream networks
Networks observed carrying traffic for AS15541: 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 |
|---|---|---|---|---|
| AS9141 | P4 Sp. z o.o. | Mobile | IPv4 | 815 |
| AS42927 | S-NET Sp. z o.o. | Unclassified | IPv4 | 147 |
| AS33891 | Core-Backbone GmbH | Hosting | IPv4 | 53 |
| AS24482 | SG.GS | Hosting | IPv4 | 18 |
| AS6939 | Hurricane Electric LLC | Transit | IPv4 | 11 |
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 2026-10-23 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.15M route entries. These are observations from those vantage points, not a complete or authoritative view of the internet.