These frequencies have been adopted into the bandplans of each IARU region 
to be a focus for emergency communications in their areas. They are not 
'absolute' frequencies but instead are 'centres of activity' and emergency 
communications may be found ±20kHz from these centres. Some countries may 
maintain other emergency frequencies in their own bandplans due to local 
requirements, QRM etc.
Region 1        Region 2                Region 3
3760            3750 or 3985            3600
7110            7060, 7240 or 7275      7110
14300           14300                   14300
18160           18160                   18160
21360           21360                   21360