An E-Mail to Phone Number Resolution for Mobile to Mobile, Mobile to Landline, And PC to Mobile Communications comprising of a plurality of profiles associated with a plurality of email addresses and mapped to phone numbers. Callers subscribe to the service platform to initiate a call to a called party. The call is directed to an email address and not a phone number. The email address is resolved to a phone number by the service platform and the call is established between the caller and the called party. The phone number of the caller is masked by the service platform so that the called party is unable to determine the originating phone number.