List of ITU letter codes
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Template:Short description The radiocommunication division of the International Telecommunication Union uses the following letter codes to identify its member countries. Eight countries are assigned single-letter codes (Template:Flag, Template:Flag, Template:Flag, Template:Flag, Template:Flag, Template:Flag, Template:Flag, Template:Flag), while the rest have codes three letters in length.
| Code | Country |
|---|---|
| A | |
| AFG | Template:Flag |
| AFS | Template:Flag (Republic of) |
| AGL | Template:Flag (Republic of) |
| ALB | Template:Flag (Republic of) |
| ALG | Template:Flag (People's Democratic Republic of) |
| AND | Template:Flag (Principality of) |
| ARG | Template:Flag |
| ARM | Template:Flag (Republic of) |
| ARS | Template:Flag (Kingdom of) |
| ATG | Template:Flag |
| AUS | Template:Flag |
| AUT | Template:Flag |
| AZE | Template:Flag (Republic of) |
| B | |
| B | Template:Flag (Federative Republic of) |
| BAH | Template:Flag (Commonwealth of the) |
| BDI | Template:Flag (Republic of) |
| BEL | Template:Flag |
| BEN | Template:Flag (Republic of) |
| BFA | Template:Flag |
| BGD | Template:Flag (People's Republic of) |
| BHR | Template:Flag (Kingdom of) |
| BIH | Template:Flag |
| BLR | Template:Flag (Republic of) |
| BLZ | Template:Flag |
| BOL | Template:Flag (Plurinational State of) |
| BOT | Template:Flag (Republic of) |
| BRB | Template:Flag |
| BRM | Template:Flag (Union of) |
| BRU | Template:Flag |
| BTN | Template:Flag (Kingdom of) |
| BUL | Template:Flag (Republic of) |
| C | |
| CAF | Template:Flag |
| CAN | Template:Flag |
| CBG | Template:Flag (Kingdom of) |
| CHL | Template:Flag |
| CHN | Template:Flag (People's Republic of) |
| CLM | Template:Flag (Republic of) |
| CLN | Template:Flag (Democratic Socialist Republic of) |
| CME | Template:Flag (Republic of) |
| COD | Template:Flag |
| COG | Template:Flag (Republic of the) |
| COM | Template:Flag (Union of the) |
| CPV | Template:Flag (Republic of) |
| CTI | Template:Flag (Republic of) |
| CTR | Template:Flag |
| CUB | Template:Flag |
| CVA | Template:Flag |
| CYP | Template:Flag (Republic of) |
| CZE | Template:Flag |
| D | |
| D | Template:Flag (Federal Republic of) |
| DJI | Template:Flag (Republic of) |
| DMA | Template:Flag (Commonwealth of) |
| DNK | Template:Flag |
| DOM | Template:Flag |
| E | |
| E | Template:Flag |
| EGY | Template:Flag (Arab Republic of) |
| EQA | Template:Flag |
| ERI | Template:Flag |
| EST | Template:Flag (Republic of) |
| ETH | Template:Flag (Federal Democratic Republic of) |
| F | |
| F | Template:Flag |
| FIN | Template:Flag |
| FJI | Template:Flag (Republic of) |
| FSM | Template:Flag (Federated States of) |
| G | |
| G | Template:Flag |
| GAB | Template:Flag |
| GEO | Template:Flag |
| GHA | Template:Flag |
| GMB | Template:Flag (Republic of the) |
| GNB | Template:Flag (Republic of) |
| GNE | Template:Flag (Republic of) |
| GRC | Template:Flag |
| GRD | Template:Flag |
| GTM | Template:Flag (Republic of) |
| GUI | Template:Flag (Republic of) |
| GUY | Template:Flag |
| H | |
| HND | Template:Flag (Republic of) |
| HNG | Template:Flag |
| HOL | Template:Flag (Kingdom of the) |
| HRV | Template:Flag (Republic of) |
| HTI | Template:Flag (Republic of) |
| I | |
| I | Template:Flag |
| IND | Template:Flag (Republic of) |
| INS | Template:Flag (Republic of) |
| IRL | Template:Flag |
| IRN | Template:Flag (Islamic Republic of) |
| IRQ | Template:Flag (Republic of) |
| ISL | Template:Flag |
| ISR | Template:Flag (State of) |
| J | |
| J | Template:Flag |
| JMC | Template:Flag |
| JOR | Template:Flag (Hashemite Kingdom of) |
| K | |
| KAZ | Template:Flag (Republic of) |
| KEN | Template:Flag (Republic of) |
| KGZ | Template:Flag |
| KIR | Template:Flag (Republic of) |
| KNA | Template:Flag (Federation of) |
| KOR | Template:Flag (Republic of) |
| KRE | Template:Flagdeco Democratic People's Republic of Korea |
| KWT | Template:Flag (State of) |
| L | |
| LAO | Template:Flag |
| LBN | Template:Flag |
| LBR | Template:Flag (Republic of) |
| LBY | Template:Flag (State of) |
| LCA | Template:Flag |
| LIE | Template:Flag (Principality of) |
| LSO | Template:Flag (Kingdom of) |
| LTU | Template:Flag (Republic of) |
| LUX | Template:Flag |
| LVA | Template:Flag (Republic of) |
| M | |
| MAU | Template:Flag (Republic of) |
| MCO | Template:Flag (Principality of) |
| MDA | Template:Flag (Republic of) |
| MDG | Template:Flag (Republic of) |
| MEX | Template:Flag |
| MHL | Template:Flag (Republic of the) |
| MKD | Template:Flag (Republic of) |
| MLA | Template:Flag |
| MLD | Template:Flag (Republic of) |
| MLI | Template:Flag (Republic of) |
| MLT | Template:Flag |
| MNE | Template:Flag |
| MNG | Template:Flag |
| MOZ | Template:Flag (Republic of) |
| MRC | Template:Flag (Kingdom of) |
| MTN | Template:Flag (Islamic Republic of) |
| MWI | Template:Flag |
| N | |
| NCG | Template:Flag |
| NGR | Template:Flag (Republic of the) |
| NIG | Template:Flag (Federal Republic of) |
| NMB | Template:Flag (Republic of) |
| NOR | Template:Flag |
| NPL | Template:Flag (Federal Democratic Republic of) |
| NRU | Template:Flag (Republic of) |
| NZL | Template:Flag |
| O | |
| OMA | Template:Flag (Sultanate of) |
| P | |
| PAK | Template:Flag (Islamic Republic of) |
| PHL | Template:Flag (Republic of the) |
| PNG | Template:Flag |
| PNR | Template:Flag (Republic of) |
| POL | Template:Flag (Republic of) |
| POR | Template:Flag |
| PRG | Template:Flag (Republic of) |
| PRU | Template:Flag |
| Q | |
| QAT | Template:Flag (State of) |
| R | |
| ROU | Template:Flag |
| RRW | Template:Flag (Republic of) |
| RUS | Template:Flag |
| S | |
| S | Template:Flag |
| SDN | Template:Flag (Republic of the) |
| SEN | Template:Flag (Republic of) |
| SEY | Template:Flag (Republic of) |
| SLM | Template:Flag |
| SLV | Template:Flag (Republic of) |
| SMO | Template:Flag (Independent State of) |
| SMR | Template:Flag (Republic of) |
| SNG | Template:Flag (Republic of) |
| SOM | Template:Flag (Federal Republic of) |
| SRB | Template:Flag (Republic of) |
| SRL | Template:Flag |
| SSD | Template:Flag (Republic of) |
| STP | Template:Flag (Democratic Republic of) |
| SUI | Template:Flag (Confederation of) |
| SUR | Template:Flag (Republic of) |
| SVK | Template:Flag |
| SVN | Template:Flag (Republic of) |
| SWZ | Template:Flag (Kingdom of) |
| SYR | Template:Flag |
| T | |
| TCD | Template:Flag (Republic of) |
| TGO | Template:Flag |
| THA | Template:Flag |
| TJK | Template:Flag (Republic of) |
| TKM | Template:Flag |
| TLS | Template:Flag (Democratic Republic of) |
| TON | Template:Flag (Kingdom of) |
| TRD | Template:Flag |
| TUN | Template:Flag |
| TUR | Template:Flag (Republic of) |
| TUV | Template:Flag |
| TZA | Template:Flag (United Republic of) |
| U | |
| UAE | Template:Flag |
| UGA | Template:Flag (Republic of) |
| UKR | Template:Flag |
| URG | Template:Flag (Eastern Republic of) |
| USA | Template:Flag |
| UZB | Template:Flag (Republic of) |
| V | |
| VCT | Template:Flag |
| VEN | Template:Flag (Bolivarian Republic of) |
| VTN | Template:Flag (Socialist Republic of) |
| VUT | Template:Flag (Republic of) |
| W | |
| X | |
| Y | |
| YEM | Template:Flag (Republic of) |
| Z | |
| ZMB | Template:Flag (Republic of) |
| ZWE | Template:Flag (Republic of) |
The ITU also designates the following codes for other areas around the world that are not member states.