Upstream networks
AS15997 ITSA ITSA Autonomous System
Residential RIPE
Transit
Upstream networks
Networks observed carrying traffic for AS15997: 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 |
|---|---|---|---|---|
| AS1299 | Arelion Sweden AB | Transit | IPv4 IPv6 | 45 |
| AS3491 | PCCW Global (HK) Ltd. | Transit | IPv4 | 39 |
| AS6939 | Hurricane Electric LLC | Transit | IPv4 IPv6 | 38 |
| AS174 | Cogent Communications, LLC | Transit | IPv4 IPv6 | 31 |
| AS12741 | Netia SA | Residential | IPv4 | 30 |
| AS3356 | Level 3 Parent, LLC | Transit | IPv4 IPv6 | 20 |
| AS24482 | SG.GS | Hosting | IPv4 IPv6 | 4 |
| AS29632 | Netassist International EOOD | Unclassified | IPv6 | 2 |
| AS201054 | Stowarzyszenie e-Poludnie | Unclassified | IPv6 | 1 |
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 2026-10-12 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.21M route entries. These are observations from those vantage points, not a complete or authoritative view of the internet.