System level identity object

A method, system, and computer accessible medium for maintaining and sharing identity information for identities. Multiple types of identity information, including communication-related information, for multiple identities may be aggregated, stored in, and accessed through, a corresponding shared identity objects. Aggregated identity information for an identity may be stored in a corresponding shared identity object. Aggregated identity information may be accessed by applications through shared identity objects. Communication-related information may include indications of communication mechanisms. Communication with an identity may be initiated through a corresponding shared identity object using the communication mechanisms. The communication related information may also include an indication of the reach-ability of the identity through each of the communication mechanisms and may be requested and received form remote system associated with the identity.