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 (, , , , , , , ), while the rest have codes three letters in length.
{| class="wikitable sortable"
|+ ITU country symbols for its member states
!scope=col| Code
!scope=col| Country
|-
!colspan="2"|A
|-
| AFG
|
|-
| AFS
| (Republic of)
|-
| AGL
| (Republic of)
|-
| ALB
| (Republic of)
|-
| ALG
| (People's Democratic Republic of)
|-
| AND
| (Principality of)
|-
| ARG
|
|-
| ARM
| (Republic of)
|-
| ARS
| (Kingdom of)
|-
| ATG
|
|-
| AUS
|
|-
| AUT
|
|-
| AZE
| (Republic of)
|-
!colspan="2"|B
|-
| B
| (Federative Republic of)
|-
| BAH
| (Commonwealth of the)
|-
| BDI
| (Republic of)
|-
| BEL
|
|-
| BEN
| (Republic of)
|-
| BFA
|
|-
| BGD
| (People's Republic of)
|-
| BHR
| (Kingdom of)
|-
| BIH
|
|-
| BLR
| (Republic of)
|-
| BLZ
|
|-
| BOL
| (Plurinational State of)
|-
| BOT
| (Republic of)
|-
| BRB
|
|-
| BRM
| (Union of)
|-
| BRU
|
|-
| BTN
| (Kingdom of)
|-
| BUL
| (Republic of)
|-
!colspan="2"|C
|-
| CAF
|
|-
| CAN
|
|-
| CBG
| (Kingdom of)
|-
| CHL
|
|-
| CHN
| (People's Republic of)
|-
| CLM
| (Republic of)
|-
| CLN
| (Democratic Socialist Republic of)
|-
| CME
| (Republic of)
|-
| COD
|
|-
| COG
| (Republic of the)
|-
| COM
| (Union of the)
|-
| CPV
| (Republic of)
|-
| CTI
| (Republic of)
|-
| CTR
|
|-
| CUB
|
|-
| CVA
|
|-
| CYP
| (Republic of)
|-
| CZE
|
|-
!colspan="2"|D
|-
| D
| (Federal Republic of)
|-
| DJI
| (Republic of)
|-
| DMA
| (Commonwealth of)
|-
| DNK
|
|-
| DOM
|
|-
!colspan="2"|E
|-
| E
|
|-
| EGY
| (Arab Republic of)
|-
| EQA
|
|-
| ERI
|
|-
| EST
| (Republic of)
|-
| ETH
| (Federal Democratic Republic of)
|-
!colspan="2"|F
|-
| F
|
|-
| FIN
|
|-
| FJI
| (Republic of)
|-
| FSM
| (Federated States of)
|-
!colspan="2"|G
|-
| G
|
|-
| GAB
|
|-
| GEO
|
|-
| GHA
|
|-
| GMB
| (Republic of the)
|-
| GNB
| (Republic of)
|-
| GNE
| (Republic of)
|-
| GRC
|
|-
| GRD
|
|-
| GTM
| (Republic of)
|-
| GUI
| (Republic of)
|-
| GUY
|
|-
!colspan="2"|H
|-
| HND
| (Republic of)
|-
| HNG
|
|- id="HOL"
| HOL
| (Kingdom of the)
|-
| HRV
| (Republic of)
|-
| HTI
| (Republic of)
|-
!colspan="2"|I
|-
| I
|
|-
| IND
| (Republic of)
|-
| INS
| (Republic of)
|-
| IRL
|
|-
| IRN
| (Islamic Republic of)
|-
| IRQ
| (Republic of)
|-
| ISL
|
|-
| ISR
| (State of)
|-
!colspan="2"|J
|-
| J
|
|-
| JMC
|
|-
| JOR
| (Hashemite Kingdom of)
|-
!colspan="2"|K
|-
| KAZ
| (Republic of)
|-
| KEN
| (Republic of)
|-
| KGZ
|
|-
| KIR
| (Republic of)
|-
| KNA
| (Federation of)
|-
| KOR
| (Republic of)
|-
| KRE
| Democratic People's Republic of Korea
|-
| KWT
| (State of)
|-
!colspan="2"|L
|-
| LAO
|
|-
| LBN
|
|-
| LBR
| (Republic of)
|-
| LBY
| (State of)
|-
| LCA
|
|-
| LIE
| (Principality of)
|-
| LSO
| (Kingdom of)
|-
| LTU
| (Republic of)
|-
| LUX
|
|-
| LVA
| (Republic of)
|-
!colspan="2"|M
|-
| MAU
| (Republic of)
|-
| MCO
| (Principality of)
|-
| MDA
| (Republic of)
|-
| MDG
| (Republic of)
|-
| MEX
|
|-
| MHL
| (Republic of the)
|-
| MKD
| (Republic of)
|-
| MLA
|
|-
| MLD
| (Republic of)
|-
| MLI
| (Republic of)
|-
| MLT
|
|-
| MNE
|
|-
| MNG
|
|-
| MOZ
| (Republic of)
|-
| MRC
| (Kingdom of)
|-
| MTN
| (Islamic Republic of)
|-
| MWI
|
|-
!colspan="2"|N
|-
| NCG
|
|-
| NGR
| (Republic of the)
|-
| NIG
| (Federal Republic of)
|-
| NMB
| (Republic of)
|-
| NOR
|
|-
| NPL
| (Federal Democratic Republic of)
|-
| NRU
| (Republic of)
|-
| NZL
|
|-
!colspan="2"|O
|-
| OMA
| (Sultanate of)
|-
!colspan="2"|P
|-
| PAK
| (Islamic Republic of)
|-
| PHL
| (Republic of the)
|-
|PLW
| (Republic of)
|-
| PNG
|
|-
| PNR
| (Republic of)
|-
| POL
| (Republic of)
|-
| POR
|
|-
| PRG
| (Republic of)
|-
| PRU
|
|-
!colspan="2"|Q
|-
| QAT
| (State of)
|-
!colspan="2"|R
|-
| ROU
|
|-
| RRW
| (Republic of)
|-
| RUS
|
|-
!colspan="2"|S
|-
| S
|
|-
| SDN
| (Republic of the)
|-
| SEN
| (Republic of)
|-
| SEY
| (Republic of)
|-
| SLM
|
|-
| SLV
| (Republic of)
|-
| SMO
| (Independent State of)
|-
| SMR
| (Republic of)
|-
| SNG
| (Republic of)
|-
| SOM
| (Federal Republic of)
|-
| SRB
| (Republic of)
|-
| SRL
|
|-
| SSD
| (Republic of)
|-
| STP
| (Democratic Republic of)
|-
| SUI
| (Confederation of)
|-
| SUR
| (Republic of)
|-
| SVK
|
|-
| SVN
| (Republic of)
|-
| SWZ
| (Kingdom of)
|-
| SYR
|
|-
!colspan="2"|T
|-
| TCD
| (Republic of)
|-
| TGO
|
|-
| THA
|
|-
| TJK
| (Republic of)
|-
| TKM
|
|-
| TLS
| (Democratic Republic of)
|-
| TON
| (Kingdom of)
|-
| TRD
|
|-
| TUN
|
|-
| TUR
| (Republic of)
|-
| TUV
|
|-
| TZA
| (United Republic of)
|-
!colspan="2"|U
|-
| UAE
|
|-
| UGA
| (Republic of)
|-
| UKR
|
|-
| URG
| (Eastern Republic of)
|-
| USA
|
|-
| UZB
| (Republic of)
|-
!colspan="2"|V
|-
| VCT
|
|-
| VEN
| (Bolivarian Republic of)
|-
| VTN
| (Socialist Republic of)
|-
| VUT
| (Republic of)
|-
!colspan="2"|W
|-
!colspan="2"|X
|-
!colspan="2"|Y
|-
| YEM
| (Republic of)
|-
!colspan="2"|Z
|-
| ZMB
| (Republic of)
|-
| ZWE
| (Republic of)
|}
The ITU also designates the following codes for other areas around the world that are not member states.
{| class="wikitable sortable"
|+ ITU country symbols for non-member states, areas, organizations and special purposes
!scope=col| Code
!scope=col| Area
|-
!colspan="2"|A
|-
| ABW
|
|-
| AIA
|
|-
| ALS
| (State of)
|-
| AMS
| Saint Paul and Amsterdam Islands
|-
| AOE
| / Western Sahara
|-
| ASC
|
|-
| ATA
|
|-
| AZR
|
|-
!colspan="2"|B
|-
| BER
|
|-
| BIO
| Chagos Islands (Indian Ocean)
|-
| BLM
| (French Department of)
|-
| BVT
|
|-
!colspan="2"|C
|-
| CG7
| CUB(Guantanamo) (7).
|-
| CHR
| (Indian Ocean)
|-
| CKH
|
|-
| CNR
|
|-
| CPT
|
|-
| CRO
| Crozet Archipelago
|-
| CYM
|
|-
!colspan="2"|D
|-
| DGA
| Diego Garcia
|-
!colspan="2"|E
|-
!colspan="2"|F
|-
| FLK
| (Malvinas)
|-
| FRO
|
|-
!colspan="2"|G
|-
| GCA
| (Non-metropolitan) – Region 1
|-
| GCC
| – Region 3
|-
| GIB
|
|-
| GRL
|
|-
| GUF
| (French Department of)
|-
| GUM
|
|-
!colspan="2"|H
|-
| HKG
| (Special Administrative Region of China)
|-
| HMD
|
|-
| HWA
| (State of)
|-
| HWL
|
|-
!colspan="2"|I
|-
| ICO
|
|-
!colspan="2"|J
|-
| JAR
|
|-
| JON
|
|-
!colspan="2"|K
|-
| KER
| Kerguelen Islands
|-
!colspan="2"|L
|-
!colspan="2"|M
|-
| MAC
| (Special Administrative Region of China)
|-
| MDR
|
|-
| MDW
|
|-
| MRA
| (Commonwealth of the)
|-
| MRN
| Marion Island
|-
| MRT
| (French Department of)
|-
| MSR
|
|-
| MYT
| (Territorial Collectivity of)
|-
!colspan="2"|N
|-
| NCL
|
|-
| NFK
|
|-
| NIU
|
|-
!colspan="2"|O
|-
| OCE
|
|-
!colspan="2"|P
|-
| PAQ
|
|-
| PHX
| Phoenix Islands
|-
| PLM
| Palmyra Island
|-
| PTC
|
|-
| PTR
|
|-
!colspan="2"|Q
|-
!colspan="2"|R
|-
| REU
| (French Department of)
|-
| ROD
| Rodrigues
|-
!colspan="2"|S
|-
| SCG
| ex → SRB, MNE
|-
| SHN
|
|-
| SMA
|
|-
| SPM
| (Territorial Collectivity of)
|-
| SWN
| Swan Islands
|-
| SXM
| (Dutch part)
|-
!colspan="2"|T
|-
| TCA
|
|-
| TKL
|
|-
| TRC
|
|-
!colspan="2"|U
|-
!colspan="2"|V
|-
| VIR
|
|-
| VRG
|
|-
!colspan="2"|W
|-
| WAK
|
|-
| WAL
|
|-
!colspan="2"|X
|-
| XAA
| shared throughout the world
|-
| XAX
| shared by several countries, but in a restricted area of the world
|-
| XBR
| special use
|-
| XBY
| / Abyei area
|-
| XCQ
| ex Caroline Islands → FSM + PLW
|-
| XCS
| ex TCH → CZE + SVK
|-
| XGZ
|
|-
| XMM
| inter-ship communications
|-
| XOA
| International Civil Aviation Organization
|-
| XR1
| Region 1 (RR 5.3)
|-
| XR2
| Region 2 (RR 5.4)
|-
| XR3
| Region 3 (RR 5.5)
|-
| XRY
| (RR AP 26/5.2)
|-
| XSC
| ex SCG
|-
| XSD
| ex Republic of the Sudan before 14 July 2011 → SDN + SSD
|-
| XSP
| Spratly Islands
|-
| XSU
| ex URS → RUS + …
|-
| XUN
| '
|-
| XUU
| unknown site
|-
| XWB
|
|-
| XWM
| World Meteorological Organization
|-
| XYU
| ex YUG → SCG… + HRV + BIH + SVN
|-
| XYZ
| pending further developments regarding the administration responsible
|-
| XZZ
| administrative status is subject to special arrangements
|-
!colspan="2"|Y
|-
!colspan="2"|Z
|}
References
External links
- ITU: List of all geographical area designations