Upstream networks
AS26651 CAREFUSION-AS - CareFusion Corporation
Unclassified ARIN
Transit
Upstream networks
Networks observed carrying traffic for AS26651: 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 | 997 |
| AS3549 | Level 3 Parent, LLC | Transit | IPv4 | 303 |
| AS3356 | Level 3 Parent, LLC | Transit | IPv4 | 118 |
| AS46887 | Crown Castle Fiber LLC | Unclassified | IPv4 | 77 |
| AS7029 | Windstream Communications LLC | Residential | IPv4 | 57 |
| AS3257 | GTT Communications Inc. | Transit | IPv4 | 4 |
| AS7018 | AT&T Enterprises, LLC | Residential | IPv4 | 2 |
| AS20077 | IPNetZone | Unclassified | IPv4 | 2 |
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 2026-11-02 10:00 UTC by route-views2,rrc00, as seen from 76 BGP vantage points across 74.44M route entries. These are observations from those vantage points, not a complete or authoritative view of the internet.