Upstream networks
AS11528 PHOTRONICS
Unclassified ARIN
Transit
Upstream networks
Networks observed carrying traffic for AS11528: 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 | 177 |
| AS17408 | AboveNet Communications Taiwan | Unclassified | IPv4 | 66 |
| AS4766 | Korea Telecom | Mobile | IPv4 | 63 |
| AS3462 | Data Communication Business Group | Residential | IPv4 | 61 |
| AS15372 | IBH connect GmbH | Unclassified | IPv4 | 61 |
| AS2856 | British Telecommunications Limited | Residential | IPv4 | 60 |
| AS7385 | Allstream Business US, LLC | Unclassified | IPv4 | 60 |
| AS42973 | Convergence Group (Wireless) Networks Limited | Unclassified | IPv4 | 60 |
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 2026-10-30 10:00 UTC by route-views2,rrc00, as seen from 76 BGP vantage points across 74.49M route entries. These are observations from those vantage points, not a complete or authoritative view of the internet.