1. A method for distributing service content, comprising the steps of: providing service content; compiling a list of subscribers to which said service content is to be distributed; collecting information about said subscribers by collecting, in a central network operator subsystem, subscriber attributes for said subscribers on said list from operators of a plurality of mobile communication networks, said central network operator subsystem also functioning as a terminating network; and modifying said service content according to said collected subscriber attributes to suit said subscriber attributes; and distributing, to subscribers on said list, said service content by distributing said service content modified according to respective subscriber attributes.