Upstream networks
AS36671 TWOSIGMA2
Unclassified ARIN
Transit
Upstream networks
Networks observed carrying traffic for AS36671: 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 |
|---|---|---|---|---|
| AS174 | Cogent Communications, LLC | Transit | IPv4 IPv6 | 253 |
| AS3356 | Level 3 Parent, LLC | Transit | IPv4 IPv6 | 210 |
| AS1299 | Arelion Sweden AB | Transit | IPv4 | 173 |
| AS3257 | GTT Communications Inc. | Transit | IPv4 | 73 |
| AS3491 | PCCW Global (HK) Ltd. | Transit | IPv4 | 66 |
| AS701 | Verizon Business | Residential | IPv4 | 38 |
| AS6461 | Zayo Bandwidth | Transit | IPv4 | 38 |
| AS7018 | AT&T Enterprises, LLC | Residential | IPv4 | 35 |
| AS25956 | Logix | Unclassified | 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 2026-10-24 16:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.19M route entries. These are observations from those vantage points, not a complete or authoritative view of the internet.