Upstream networks
AS53571 PCC-CORP - PRECISION CASTPARTS CORP
Unclassified ARIN
Transit
Upstream networks
Networks observed carrying traffic for AS53571: 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 |
|---|---|---|---|---|
| AS13649 | Flexential Colorado Corp. | Hosting | IPv4 | 472 |
| AS5650 | Frontier Communications of America, Inc. | Residential | IPv4 | 112 |
| AS23132 | Charter Communications LLC | Unclassified | IPv4 | 61 |
| AS33662 | Comcast Cable Communications, LLC | Unclassified | IPv4 | 59 |
| AS2764 | AAPT Limited | Unclassified | IPv4 | 57 |
| AS5413 | Wavenet Limited | Residential | IPv4 | 52 |
| AS3356 | Level 3 Parent, LLC | Transit | IPv4 | 5 |
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 2026-11-06 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.00M route entries. These are observations from those vantage points, not a complete or authoritative view of the internet.