Upstream networks
AS19151 BBO-1
Hosting ARIN
Transit
Upstream networks
Networks observed carrying traffic for AS19151: 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 |
|---|---|---|---|---|
| AS2914 | NTT America, Inc. | Transit | IPv4 IPv6 | 756 |
| AS174 | Cogent Communications, LLC | Transit | IPv4 IPv6 | 720 |
| AS6939 | Hurricane Electric LLC | Transit | IPv4 IPv6 | 321 |
| AS9002 | RETN Limited | Unclassified | IPv4 IPv6 | 261 |
| AS3356 | Level 3 Parent, LLC | Transit | IPv4 | 60 |
| AS14907 | Wikimedia Foundation Inc. | Hosting | IPv4 IPv6 | 39 |
| AS24482 | SG.GS | Hosting | IPv4 IPv6 | 39 |
| AS293 | ESnet | Unclassified | IPv4 | 38 |
| AS2152 | CENIC | Unclassified | IPv4 | 38 |
| AS2497 | Internet Initiative Japan Inc. | Unclassified | IPv4 | 38 |
| AS7575 | Australian Academic and Research Network (AARNet) | Education | IPv4 | 38 |
| AS9304 | HGC Global Communications Limited | Hosting | IPv4 IPv6 | 10 |
| AS13030 | Init7 (Switzerland) Ltd. | Hosting | 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 2026-10-13 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.22M route entries. These are observations from those vantage points, not a complete or authoritative view of the internet.