IRA is the national member society representing Iceland in the International Amateur Radio Union.

"There are symbols for things like the semicolon," said Larry Price, the president of the International Amateur Radio Union.

The rules of the sport and international competitions are organized by the International Amateur Radio Union.

RL is the national member society representing Luxembourg in the International Amateur Radio Union.

The organisation is the national society representing Australia in the International Amateur Radio Union.

For a full list of countries using 6-meters refer to the bandplan of the International Amateur Radio Union.

The award is sponsored by the International Amateur Radio Union.

ARM is the member society representing Macau in the International Amateur Radio Union.

In 1936, the International Radio Union recognized Vatican Radio as a "special case" and authorized its broadcasting without any geographical limits.

As of February, 2009, the International Amateur Radio Union is composed of 162 national member societies.