Upstream networks
AS19661 SUSQ-BALA - Susquehanna International Group, LLP
Unclassified ARIN
Transit
Upstream networks
Networks observed carrying traffic for AS19661: 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 |
|---|---|---|---|---|
| AS3356 | Level 3 Parent, LLC | Transit | IPv4 IPv6 | 362 |
| AS6939 | Hurricane Electric LLC | Transit | IPv4 | 225 |
| AS6461 | Zayo Bandwidth | Transit | IPv4 | 84 |
| AS9255 | Singapore Telecom | Unclassified | IPv4 | 59 |
| AS38195 | Superloop | Unclassified | IPv4 | 42 |
| AS46887 | Crown Castle Fiber LLC | Unclassified | IPv4 | 34 |
| AS2764 | AAPT Limited | Unclassified | IPv4 | 16 |
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 2026-11-05 10:00 UTC by route-views2,rrc00, as seen from 76 BGP vantage points across 73.57M route entries. These are observations from those vantage points, not a complete or authoritative view of the internet.