def region_code_for_country_code(country_code):
 regions = COUNTRY_CODE_TO_REGION_CODE.get(country_code, None)
 if (regions is None):
  return UNKNOWN_REGION
 else:
  return regions[0]

def region_code_for_country_code ( country_code ) : regions = COUNTRY_CODE_TO_REGION_CODE . get ( country_code , None ) if ( regions is None ) : return UNKNOWN_REGION else : return regions [ 0 ]
returns the region code that matches a specific country calling code .