Newly released callsign blocks – 4Y1A & C7A

Vienna International Amateur Radio Club (VIARC) proudly announces that VIARC will operate stations under newly released callsigns of C7A and 4Y1A as a host institute. The callsign block C7A-C7Z is allocated to World Meteorological Organization (WMO) and 4YA-4YZ is to International Civil Aviation Organization (ICAO). VIARC is currently operating a UN amateur radio station with…