Systems and methods to accelerate transactions made via mobile communications. In one aspect, a system includes: a data storage facility to store information associated with past payment transactions and an interchange coupled with the data storage facility. The interchange includes a common format processor and a plurality of converters to interface with a plurality of controllers. The converters are configured to communicate with the controllers in different formats, and to communicate with the common format processor in a common format. After a payment request identifying the phone number is received in the interchange, the common format processor is to determine whether to skip mobile communications with a mobile phone at the phone number to confirm/authenticate the request, based on real time information about the current transaction, the historical transaction data related to the phone number, and other data such as social graph data related to the user of the phone number.