ITU Table of Allocation of International Call Sign Series
International Call Sign Series
Prefix assignments by the International Telecommunications Union (ITU)| Call Sign Series | Allocated to |
| AAA-ALZ | United States of America |
| AMA-AOZ | Spain |
| APA-ASZ | Pakistan (Islamic Republic of) |
| ATA-AWZ | India (Republic of) |
| AXA-AXZ | Australia |
| AYA-AZZ | Argentine Republic |
| A2A-A2Z | Botswana (Republic of) |
| A3A-A3Z | Tonga (Kingdom of) |
| A4A-A4Z | Oman (Sultanate of) |
| A5A-A5Z | Bhutan (Kingdom of) |
| A6A-A6Z | United Arab Emirates |
| A7A-A7Z | Qatar (State of) |
| A8A-A8Z | Liberia (Republic of) |
| A9A-A9Z | Bahrain (State of) |
| BAA-BZZ | China (People's Republic of) |
| CAA-CEZ | Chile |
| CFA-CKZ | Canada |
| CLA-CMZ | Cuba |
| CNA-CNZ | Morocco (Kingdom of) |
| COA-COZ | Cuba |
| CPA-CPZ | Bolivia (Republic of) |
| CQA-CUZ | Portugal |
| CVA-CXZ | Uruguay (Eastern Republic of) |
| CYA-CZZ | Canada |
| C2A-C2Z | Nauru (Republic of) |
| C3A-C3Z | Andorra (Principality of) |
| C4A-C4Z | Cyprus (Republic of) |
