Abstract: Systems and methods are disclosed for providing addressing strings formats and associated system implementations to minimize the number of different addressing strings used for communicating across different communication applications. The systems and methods receive a valid address string that can be inputted into a communication applications selected from a collection of communication applications wherein the same address string can be input for any selected communication application from that collection.

Abstract: A method for registering entries in a DNS (Domain Name System) type database, comprises the steps (21) of providing a registration identifier (1), said registration identifier (1) being a string of characters; automatically determining a first domain name identifier, said first domain name identifier being a character string comprising at least a first substring that is algorithmically derived from at least a substring of the registration identifier (1); automatically determining a second domain name identifier, said second domain name identifier being a character string comprising at least a second substring that is algorithmically derivable from at least a substring of the registration identifier (1) or from at least a substring of the first domain name identifier; and registering (2, 3), in the DNS type database, domain names according to the first domain name identifier and to the second domain name identifier.