Please visit 
https://peering.google.com/
for Google's (generally open) peering policy and more information about our traffic delivery and management practices.

Related ASNs: 
Google also manages the following ASNs:
AS36040, AS43515, AS36561

Peering Requests: 
Contact peering@google.com

Peering Operational Issues:
Contact noc@google.com 24x7
