Upstream networks
AS21247 IPSYN-AS
Unclassified RIPE
Transit
Upstream networks
Networks observed carrying traffic for AS21247: 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 |
|---|---|---|---|---|
| AS29075 | IELO-LIAZO SERVICES SAS | Unclassified | IPv4 | 36 |
| AS6939 | Hurricane Electric LLC | Transit | IPv4 IPv6 | 22 |
| AS8218 | Zayo Infrastructure France SA | Unclassified | IPv4 | 15 |
| AS39801 | France IX Services SASU | Unclassified | IPv4 IPv6 | 11 |
| AS9002 | RETN Limited | Unclassified | IPv6 | 4 |
| AS24482 | SG.GS | Hosting | IPv4 IPv6 | 2 |
| AS37721 | Virtual Technologies & Solutions | Residential | IPv4 IPv6 | 2 |
| AS50628 | Leonix Telecom SAS | Unclassified | IPv4 IPv6 | 2 |
| AS25091 | IP-Max SA | Unclassified | IPv6 | 1 |
| AS34019 | Hivane Association | 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 2026-10-28 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.