Upstream networks
AS31817 PSC - Progress Software Corp - CSG
Unclassified ARIN
Transit
Upstream networks
Networks observed carrying traffic for AS31817: 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 |
|---|---|---|---|---|
| AS17378 | TierPoint, LLC | Hosting | IPv4 | 86 |
| AS46887 | Crown Castle Fiber LLC | Unclassified | IPv4 | 28 |
| AS7018 | AT&T Enterprises, LLC | Residential | IPv4 | 4 |
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 2026-11-11 10:00 UTC by route-views2,rrc00, as seen from 74 BGP vantage points across 73.24M route entries. These are observations from those vantage points, not a complete or authoritative view of the internet.