Common Short Code Administration (CSCA) is an organization that administers the common short code registry for a particular country/region. CSCAs are predominantly in Canada, China, the United Kingdom and the United States. Local mobile carriers and short code aggregators are the administrators of CSC registry in other countries. It acts as central point for reserving five and six digit short codes across all participating carriers. The Common Short Code Registry system allows brands, content providers, application developers and other companies to advertise a single number that can be accessed carrier. In other words, it allows organizations to connect with their audiences to offer promotions, information and other marketing messages.