We maintain a selective peering policy for bilateral peering with a baseline requirement of 100Mbps ingress or egress.  When our mutual traffic exchange does not meet these baseline requirements, we offer to exchange routes over the MLPE servers at the respective exchange points.  In some situations we make exceptions for markets in the APAC region and for ASN's which serve origin traffic.  
 
Please contact us with any questions or requests you may have.

Peering Requests: 
peering@twitter.com

Operational Issues
noc@twitter.com