Country codes: J–K
 Jamaica
    
| ISO 3166-1 numeric 388  | 
ISO 3166-1 alpha-3 JAM  | 
ISO 3166-1 alpha-2 JM  | 
ICAO airport code prefix(es) MK  | 
| E.164 code(s) +1 876  | 
IOC country code JAM  | 
Country code top-level domain .jm  | 
ICAO aircraft regis. prefix(es) 6Y-  | 
| E.212 mobile country code(s) 338  | 
NATO Three-letter code JAM  | 
NATO Two-letter code (obsolete) JM  | 
LOC MARC code(s) JM  | 
| ITU Maritime ID(s) 339  | 
ITU letter code(s) JMC  | 
FIPS country code(s) JM  | 
License plate code JA  | 
| GS1 GTIN prefix(es) —  | 
UNDP country code JAM  | 
WMO country code(s) JM  | 
ITU callsign prefixes 6YA-6YZ  | 
 Japan
    
| ISO 3166-1 numeric 392  | 
ISO 3166-1 alpha-3 JPN  | 
ISO 3166-1 alpha-2 JP  | 
ICAO airport code prefix(es) RJ, RO  | 
| E.164 code(s) +81  | 
IOC country code JPN  | 
Country code top-level domain .jp  | 
ICAO aircraft regis. prefix(es) JA-  | 
| E.212 mobile country code(s) 441  | 
NATO Three-letter code JPN  | 
NATO Two-letter code (obsolete) JA  | 
LOC MARC code(s) JA  | 
| ITU Maritime ID(s) 431, 432  | 
ITU letter code(s) J  | 
FIPS country code(s) JA  | 
License plate code J  | 
| GS1 GTIN prefix(es) 450-459, 490-499  | 
UNDP country code JPN  | 
WMO country code(s) JP  | 
ITU callsign prefixes 7JA-7NZ,8JA-8NZ,JAA-JSZ  | 
 Jersey
    
| ISO 3166-1 numeric 832  | 
ISO 3166-1 alpha-3 JEY  | 
ISO 3166-1 alpha-2 JE  | 
ICAO airport code prefix(es) EG  | 
| E.164 code(s) +44  | 
IOC country code —  | 
Country code top-level domain .je  | 
ICAO aircraft regis. prefix(es) ZJ—  | 
| E.212 mobile country code(s) —  | 
NATO Three-letter code —  | 
NATO Two-letter code (obsolete) —  | 
LOC MARC code(s) —  | 
| ITU Maritime ID(s) —  | 
ITU letter code(s) —  | 
FIPS country code(s) JE  | 
License plate code GBJ  | 
| GS1 GTIN prefix(es) —  | 
UNDP country code —  | 
WMO country code(s) —  | 
ITU callsign prefixes —  | 
 Jordan
    
| ISO 3166-1 numeric 400  | 
ISO 3166-1 alpha-3 JOR  | 
ISO 3166-1 alpha-2 JO  | 
ICAO airport code prefix(es) OJ  | 
| E.164 code(s) +962  | 
IOC country code JOR  | 
Country code top-level domain .jo  | 
ICAO aircraft regis. prefix(es) JY-  | 
| E.212 mobile country code(s) 416  | 
NATO Three-letter code JOR  | 
NATO Two-letter code (obsolete) JO  | 
LOC MARC code(s) JO  | 
| ITU Maritime ID(s) 438  | 
ITU letter code(s) JOR  | 
FIPS country code(s) JO  | 
License plate code HKJ  | 
| GS1 GTIN prefix(es) 625  | 
UNDP country code JOR  | 
WMO country code(s) JD  | 
ITU callsign prefixes JYA-JYZ  | 
 Kazakhstan
    
| ISO 3166-1 numeric 398  | 
ISO 3166-1 alpha-3 KAZ  | 
ISO 3166-1 alpha-2 KZ  | 
ICAO airport code prefix(es) UA  | 
| E.164 code(s) +7  | 
IOC country code KAZ  | 
Country code top-level domain .kz  | 
ICAO aircraft regis. prefix(es) UN-  | 
| E.212 mobile country code(s) 401  | 
NATO Three-letter code KAZ  | 
NATO Two-letter code (obsolete) KZ  | 
LOC MARC code(s) KZ  | 
| ITU Maritime ID(s) 436  | 
ITU letter code(s) KAZ  | 
FIPS country code(s) KZ  | 
License plate code KZ  | 
| GS1 GTIN prefix(es) 487  | 
UNDP country code KAZ  | 
WMO country code(s) KZ  | 
ITU callsign prefixes UNA-UQZ  | 
 Kenya
    
| ISO 3166-1 numeric 404  | 
ISO 3166-1 alpha-3 KEN  | 
ISO 3166-1 alpha-2 KE  | 
ICAO airport code prefix(es) HK  | 
| E.164 code(s) +254  | 
IOC country code KEN  | 
Country code top-level domain .ke  | 
ICAO aircraft regis. prefix(es) 5Y-  | 
| E.212 mobile country code(s) 639  | 
NATO Three-letter code KEN  | 
NATO Two-letter code (obsolete) KE  | 
LOC MARC code(s) KE  | 
| ITU Maritime ID(s) 634  | 
ITU letter code(s) KEN  | 
FIPS country code(s) KE  | 
License plate code EAK  | 
| GS1 GTIN prefix(es) 616  | 
UNDP country code KEN  | 
WMO country code(s) KN  | 
ITU callsign prefixes 5YA-5ZZ  | 
 Kiribati
    
| ISO 3166-1 numeric 296  | 
ISO 3166-1 alpha-3 KIR  | 
ISO 3166-1 alpha-2 KI  | 
ICAO airport code prefix(es) NG  | 
| E.164 code(s) +686  | 
IOC country code KIR  | 
Country code top-level domain .ki  | 
ICAO aircraft regis. prefix(es) T3-  | 
| E.212 mobile country code(s) 545  | 
NATO Three-letter code KIR  | 
NATO Two-letter code (obsolete) KR  | 
LOC MARC code(s) GB  | 
| ITU Maritime ID(s) 529  | 
ITU letter code(s) KIR  | 
FIPS country code(s) KR  | 
License plate code KIR (unofficial)  | 
| GS1 GTIN prefix(es) —  | 
UNDP country code KIR  | 
WMO country code(s) KB  | 
ITU callsign prefixes T3A-T3Z  | 
 North Korea
    
| ISO 3166-1 numeric 408  | 
ISO 3166-1 alpha-3 PRK  | 
ISO 3166-1 alpha-2 KP  | 
ICAO airport code prefix(es) ZK  | 
| E.164 code(s) +850  | 
IOC country code PRK  | 
Country code top-level domain .kp  | 
ICAO aircraft regis. prefix(es) P-  | 
| E.212 mobile country code(s) 467  | 
NATO Three-letter code PRK  | 
NATO Two-letter code (obsolete) KN  | 
LOC MARC code(s) KN  | 
| ITU Maritime ID(s) 445  | 
ITU letter code(s) KRE  | 
FIPS country code(s) KN  | 
License plate code KP (unofficial)  | 
| GS1 GTIN prefix(es) 867  | 
UNDP country code DRK[notes 1]  | 
WMO country code(s) KR  | 
ITU callsign prefixes HMA-HMZ, P5A-P9Z  | 
 South Korea
    
| ISO 3166-1 numeric 410  | 
ISO 3166-1 alpha-3 KOR  | 
ISO 3166-1 alpha-2 KR  | 
ICAO airport code prefix(es) RK  | 
| E.164 code(s) +82  | 
IOC country code KOR  | 
Country code top-level domain .kr  | 
ICAO aircraft regis. prefix(es) HL-  | 
| E.212 mobile country code(s) 450  | 
NATO Three-letter code KOR  | 
NATO Two-letter code (obsolete) KS  | 
LOC MARC code(s) KO  | 
| ITU Maritime ID(s) 440, 441  | 
ITU letter code(s) KOR  | 
FIPS country code(s) KS  | 
License plate code ROK  | 
| GS1 GTIN prefix(es) 880  | 
UNDP country code ROK[notes 2]  | 
WMO country code(s) KO  | 
ITU callsign prefixes 6KA-6NZ, D7A-D9Z  | 
 Kosovo
    
| ISO 3166-1 numeric -  | 
ISO 3166-1 alpha-3 -  | 
ISO 3166-1 alpha-2 -  | 
ICAO airport code prefix(es) BK  | 
| E.164 code(s) +383  | 
IOC country code KOS  | 
Country code top-level domain -  | 
ICAO aircraft regis. prefix(es) Z6  | 
| E.212 mobile country code(s) 212  | 
NATO Three-letter code -  | 
NATO Two-letter code (obsolete) -  | 
LOC MARC code(s) KV  | 
| ITU Maritime ID(s) -  | 
ITU letter code(s) -  | 
FIPS country code(s) KV  | 
License plate code RKS  | 
| GS1 GTIN prefix(es) -  | 
UNDP country code KOS  | 
WMO country code(s) -  | 
ITU callsign prefixes -  | 
 Kuwait
    
| ISO 3166-1 numeric 414  | 
ISO 3166-1 alpha-3 KWT  | 
ISO 3166-1 alpha-2 KW  | 
ICAO airport code prefix(es) OK  | 
| E.164 code(s) +965  | 
IOC country code KUW  | 
Country code top-level domain .kw  | 
ICAO aircraft regis. prefix(es) 9K-  | 
| E.212 mobile country code(s) 419  | 
NATO Three-letter code KWT  | 
NATO Two-letter code (obsolete) KU  | 
LOC MARC code(s) KU  | 
| ITU Maritime ID(s) 447  | 
ITU letter code(s) KWT  | 
FIPS country code(s) KU  | 
License plate code KWT  | 
| GS1 GTIN prefix(es) 627  | 
UNDP country code KUW  | 
WMO country code(s) KW  | 
ITU callsign prefixes 9KA-9KZ  | 
 Kyrgyzstan
    
| ISO 3166-1 numeric 417  | 
ISO 3166-1 alpha-3 KGZ  | 
ISO 3166-1 alpha-2 KG  | 
ICAO airport code prefix(es) UC  | 
| E.164 code(s) +996  | 
IOC country code KGZ  | 
Country code top-level domain .kg  | 
ICAO aircraft regis. prefix(es) EX-  | 
| E.212 mobile country code(s) 437  | 
NATO Three-letter code KGZ  | 
NATO Two-letter code (obsolete) KG  | 
LOC MARC code(s) KG  | 
| ITU Maritime ID(s) —  | 
ITU letter code(s) KGZ  | 
FIPS country code(s) KG  | 
License plate code KS  | 
| GS1 GTIN prefix(es) 470  | 
UNDP country code KYR  | 
WMO country code(s) KY  | 
ITU callsign prefixes EXA-EXZ  | 
Notes
    
- Democratic [People's] Republic of Korea
 - Republic of Korea