Upstream networks
AS13628 CENCORA-INTERNET - AMERISOURCEBERGEN
Unclassified ARIN
Transit
Upstream networks
Networks observed carrying traffic for AS13628: 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 | 298 |
| AS6461 | Zayo Bandwidth | Transit | IPv4 | 234 |
| AS7018 | AT&T Enterprises, LLC | Residential | IPv4 | 62 |
| AS32787 | Akamai Technologies, Inc. | Hosting | IPv4 | 60 |
| AS23550 | HUB Advanced Networks, LLC | Unclassified | IPv4 | 56 |
| AS3257 | GTT Communications Inc. | Transit | IPv4 | 38 |
| AS33657 | Comcast Cable Communications, LLC | Unclassified | IPv4 | 24 |
| AS10396 | DATACOM CARIBE, INC. | Residential | 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 2026-11-04 10:00 UTC by route-views2,rrc00, as seen from 76 BGP vantage points across 74.33M route entries. These are observations from those vantage points, not a complete or authoritative view of the internet.