Upstream networks
AS12905 ACS-SK-AS
Unclassified RIPE
Transit
Upstream networks
Networks observed carrying traffic for AS12905: 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 |
|---|---|---|---|---|
| AS31117 | ENERGOTEL a.s. | Unclassified | IPv4 IPv6 | 181 |
| AS3257 | GTT Communications Inc. | Transit | IPv4 IPv6 | 83 |
| AS6939 | Hurricane Electric LLC | Transit | IPv4 | 50 |
| AS3303 | Swisscom (Schweiz) AG | Residential | IPv4 IPv6 | 11 |
| AS31230 | Slovak University of Technology in Bratislava | Unclassified | IPv4 IPv6 | 7 |
| AS24482 | SG.GS | Hosting | IPv4 | 5 |
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 2026-10-21 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.14M route entries. These are observations from those vantage points, not a complete or authoritative view of the internet.