However , not all Reporting Body Identifiers follow this tendency .
The numbers are loosely based on the telephone country code ( CC ) of the organization identified , as most approving nations used a single approval body endorsed by their national GSM Association chapter .
Not all Reporting Body Identifiers follow this tendency .
The numbers are loosely based on the telephone country code ( CC ) of the organization identified , as most approving nations used a single approval body endorsed by their national GSM Association chapter .