Country codes: B
 Bahamas
 Bahamas
    
 Bahamas
 Bahamas| ISO 3166-1 numeric 044 | ISO 3166-1 alpha-3 BHS | ISO 3166-1 alpha-2 BS | ICAO airport code prefix MY | 
| E.164 code 1 | IOC country code BAH | Country code top-level domain .bs | ICAO aircraft regis. prefix C6- | 
| E.212 mobile country code 364 | NATO three-letter code BHS | NATO two-letter code BF | LOC MARC code BF | 
| ITU Maritime ID 308, 309, 311 | ITU letter code BAH | FIPS country code BF | License plate code BS | 
| GS1 GTIN prefix — | UNDP country code BHA | WMO country code BA | ITU callsign prefixes C6A-C6Z | 
 Bahrain
 Bahrain
    
 Bahrain
 Bahrain| ISO 3166-1 numeric 048 | ISO 3166-1 alpha-3 BHR | ISO 3166-1 alpha-2 BH | ICAO airport code prefix OB | 
| E.164 code 973 | IOC country code BRN | Country code top-level domain .bh | ICAO aircraft regis. prefix A9C- | 
| E.212 mobile country code 426 | NATO three-letter code BHR | NATO two-letter code BA | LOC MARC code BA | 
| ITU Maritime ID 408 | ITU letter code BHR | FIPS country code BA | License plate code BRN | 
| GS1 GTIN prefix 608 | UNDP country code BAH | WMO country code BN | ITU callsign prefixes A9A-A9Z | 
 Bangladesh
 Bangladesh
    
 Bangladesh
 Bangladesh| ISO 3166-1 numeric 050 | ISO 3166-1 alpha-3 BGD | ISO 3166-1 alpha-2 BD | ICAO airport code prefix VG | 
| E.164 code 880 | IOC country code BAN | Country code top-level domain .bd | ICAO aircraft regis. prefix S2- | 
| E.212 mobile country code 470 | NATO three-letter code BGD | NATO two-letter code BG | LOC MARC code BG | 
| ITU Maritime ID 405 | ITU letter code BGD | FIPS country code BG | License plate code BD | 
| GS1 GTIN prefix — | UNDP country code BGD | WMO country code BW | ITU callsign prefixes S2A-S3Z | 
 Barbados
 Barbados
    
 Barbados
 Barbados| ISO 3166-1 numeric 052 | ISO 3166-1 alpha-3 BRB | ISO 3166-1 alpha-2 BB | ICAO airport code prefix TB | 
| E.164 code 1 | IOC country code BAR | Country code top-level domain .bb | ICAO aircraft regis. prefix 8P- | 
| E.212 mobile country code 342 | NATO three-letter code BRB | NATO two-letter code BB | LOC MARC code BB | 
| ITU Maritime ID 314 | ITU letter code BRB | FIPS country code BB | License plate code BDS | 
| GS1 GTIN prefix — | UNDP country code BAR | WMO country code BR | ITU callsign prefixes 8PA-8PZ | 
 Belarus
 Belarus
    
 Belarus
 Belarus| ISO 3166-1 numeric 112 | ISO 3166-1 alpha-3 BLR | ISO 3166-1 alpha-2 BY | ICAO airport code prefix UM | 
| E.164 code 375 | IOC country code BLR | Country code top-level domain .by | ICAO aircraft regis. prefix EW- | 
| E.212 mobile country code 257 | NATO three-letter code BLR | NATO two-letter code BO | LOC MARC code BW | 
| ITU Maritime ID 206 | ITU letter code BLR | FIPS country code BO | License plate code BY | 
| GS1 GTIN prefix 481 | UNDP country code BYE | WMO country code BY | ITU callsign prefixes EUA-EWZ | 
.svg.png.webp) Belgium
 Belgium
    
.svg.png.webp) Belgium
 Belgium| ISO 3166-1 numeric 056 | ISO 3166-1 alpha-3 BEL | ISO 3166-1 alpha-2 BE | ICAO airport code prefix EB | 
| E.164 code 32 | IOC country code BEL | Country code top-level domain .be | ICAO aircraft regis. prefix OO- | 
| E.212 mobile country code 206 | NATO three-letter code BEL | NATO two-letter code BE | LOC MARC code BE | 
| ITU Maritime ID 205 | ITU letter code BEL | FIPS country code BE | License plate code B | 
| GS1 GTIN prefix 540-549 | UNDP country code BEL | WMO country code BX | ITU callsign prefixes ONA-OTZ | 
 Belize
 Belize
    
 Belize
 Belize| ISO 3166-1 numeric 084 | ISO 3166-1 alpha-3 BLZ | ISO 3166-1 alpha-2 BZ | ICAO airport code prefix MZ | 
| E.164 code 501 | IOC country code BIZ | Country code top-level domain .bz | ICAO aircraft regis. prefix V3- | 
| E.212 mobile country code 702 | NATO three-letter code BLZ | NATO two-letter code BH | LOC MARC code BH | 
| ITU Maritime ID 312 | ITU letter code BLZ | FIPS country code BH | License plate code BH | 
| GS1 GTIN prefix — | UNDP country code BZE | WMO country code BH | ITU callsign prefixes V3A-V3Z | 
 Benin
 Benin
    
 Benin
 Benin| ISO 3166-1 numeric 204 | ISO 3166-1 alpha-3 BEN | ISO 3166-1 alpha-2 BJ | ICAO airport code prefix DB | 
| E.164 code 229 | IOC country code BEN | Country code top-level domain .bj | ICAO aircraft regis. prefix TY- | 
| E.212 mobile country code 616 | NATO three-letter code BEN | NATO two-letter code BN | LOC MARC code DM | 
| ITU Maritime ID 610 | ITU letter code BEN | FIPS country code BN | License plate code DY | 
| GS1 GTIN prefix — | UNDP country code BEN | WMO country code BJ | ITU callsign prefixes TYA-TYZ | 
 Bermuda (British territory)
 Bermuda (British territory)
    
 Bermuda (British territory)
 Bermuda (British territory)| ISO 3166-1 numeric 060 | ISO 3166-1 alpha-3 BMU | ISO 3166-1 alpha-2 BM | ICAO airport code prefix TX | 
| E.164 code 1 | IOC country code BER | Country code top-level domain .bm | ICAO aircraft regis. prefix VP-B-, VQ-B- | 
| E.212 mobile country code 350 | NATO three-letter code BMU | NATO two-letter code BD | LOC MARC code BM | 
| ITU Maritime ID 310 | ITU letter code BER | FIPS country code BD | License plate code — | 
| GS1 GTIN prefix — | UNDP country code BER | WMO country code BE | ITU callsign prefixes — | 
 Bhutan
 Bhutan
    
 Bhutan
 Bhutan| ISO 3166-1 numeric 064 | ISO 3166-1 alpha-3 BTN | ISO 3166-1 alpha-2 BT | ICAO airport code prefix VQ | 
| E.164 code 975 | IOC country code BHU | Country code top-level domain .bt | ICAO aircraft regis. prefix A5- | 
| E.212 mobile country code 402 | NATO three-letter code BTN | NATO two-letter code BT | LOC MARC code BT | 
| ITU Maritime ID 410 | ITU letter code BTN | FIPS country code BT | License plate code BHT (unofficial) | 
| GS1 GTIN prefix — | UNDP country code BHU | WMO country code B2 | ITU callsign prefixes A5A-A5Z | 
.svg.png.webp) Bolivia
 Bolivia
    
.svg.png.webp) Bolivia
 Bolivia| ISO 3166-1 numeric 068 | ISO 3166-1 alpha-3 BOL | ISO 3166-1 alpha-2 BO | ICAO airport code prefix SL | 
| E.164 code 591 | IOC country code BOL | Country code top-level domain .bo | ICAO aircraft regis. prefix CP- | 
| E.212 mobile country code 736 | NATO three-letter code BOL | NATO two-letter code BL | LOC MARC code BO | 
| ITU Maritime ID 720 | ITU letter code BOL | FIPS country code BL | License plate code BOL | 
| GS1 GTIN prefix 777 | UNDP country code BOL | WMO country code BO | ITU callsign prefixes CPA-CPZ | 
 Bosnia and Herzegovina
 Bosnia and Herzegovina
    
 Bosnia and Herzegovina
 Bosnia and Herzegovina| ISO 3166-1 numeric 070 | ISO 3166-1 alpha-3 BIH | ISO 3166-1 alpha-2 BA | ICAO airport code prefix LQ | 
| E.164 code 387 | IOC country code BIH | Country code top-level domain .ba | ICAO aircraft regis. prefix T9- | 
| E.212 mobile country code 218 | NATO three-letter code BIH | NATO two-letter code BK | LOC MARC code BN | 
| ITU Maritime ID 478 | ITU letter code BIH | FIPS country code BK | License plate code BIH | 
| GS1 GTIN prefix 387 | UNDP country code BIH | WMO country code BG | ITU callsign prefixes E7A-E7Z | 
 Botswana
 Botswana
    
 Botswana
 Botswana| ISO 3166-1 numeric 072 | ISO 3166-1 alpha-3 BWA | ISO 3166-1 alpha-2 BW | ICAO airport code prefix FB | 
| E.164 code 267 | IOC country code BOT | Country code top-level domain .bw | ICAO aircraft regis. prefix A2- | 
| E.212 mobile country code 652 | NATO three-letter code BWA | NATO two-letter code BC | LOC MARC code BS | 
| ITU Maritime ID 611 | ITU letter code BOT | FIPS country code BC | License plate code BW | 
| GS1 GTIN prefix — | UNDP country code BOT | WMO country code BC | ITU callsign prefixes 8OA-8OZ, A2A-A2Z | 
 Bouvet Island (dependency of Norway)
 Bouvet Island (dependency of Norway)
    
 Bouvet Island (dependency of Norway)
 Bouvet Island (dependency of Norway)| ISO 3166-1 numeric 074 | ISO 3166-1 alpha-3 BVT | ISO 3166-1 alpha-2 BV | ICAO airport code prefix — | 
| E.164 code — | IOC country code — | Country code top-level domain .bv | ICAO aircraft regis. prefix LN- | 
| E.212 mobile country code 242 | NATO three-letter code BVT | NATO two-letter code BV | LOC MARC code BV | 
| ITU Maritime ID — | ITU letter code BVT | FIPS country code BV | License plate code — | 
| GS1 GTIN prefix — | UNDP country code — | WMO country code BV | ITU callsign prefixes — | 
 Brazil
 Brazil
    
 Brazil
 Brazil| ISO 3166-1 numeric 076 | ISO 3166-1 alpha-3 BRA | ISO 3166-1 alpha-2 BR | ICAO airport code prefix SB, SD, SN, SS, SW | 
| E.164 code 55 | IOC country code BRA | Country code top-level domain .br | ICAO aircraft regis. prefix PP-, PR-, PT-, PU- | 
| E.212 mobile country code 724 | NATO three-letter code BRA | NATO two-letter code BR | LOC MARC code BL | 
| ITU Maritime ID 710 | ITU letter code B | FIPS country code BR | License plate code BR | 
| GS1 GTIN prefix 789-790 | UNDP country code BRA | WMO country code BZ | ITU callsign prefixes PPA-PYZ, ZVA-ZZZ | 
 British Indian Ocean Territory (Also, overseas territory)
 British Indian Ocean Territory (Also, overseas territory)
    
 British Indian Ocean Territory (Also, overseas territory)
 British Indian Ocean Territory (Also, overseas territory)| ISO 3166-1 numeric 086 | ISO 3166-1 alpha-3 IOT | ISO 3166-1 alpha-2 IO | ICAO airport code prefix FJ | 
| E.164 code 246 | IOC country code — | Country code top-level domain .io | ICAO aircraft regis. prefix G- | 
| E.212 mobile country code — | NATO three-letter code IOT | NATO two-letter code IO | LOC MARC code BI | 
| ITU Maritime ID — | ITU letter code BIO | FIPS country code IO | License plate code — | 
| GS1 GTIN prefix — | UNDP country code — | WMO country code BT | ITU callsign prefixes — | 
 Brunei
 Brunei
    
 Brunei
 Brunei| ISO 3166-1 numeric 096 | ISO 3166-1 alpha-3 BRN | ISO 3166-1 alpha-2 BN | ICAO airport code prefix WB | 
| E.164 code 673 | IOC country code BRU | Country code top-level domain .bn | ICAO aircraft regis. prefix V8- | 
| E.212 mobile country code 528 | NATO three-letter code BRN | NATO two-letter code BX | LOC MARC code BX | 
| ITU Maritime ID 508 | ITU letter code BRU | FIPS country code BX | License plate code BRU | 
| GS1 GTIN prefix 623 | UNDP country code BRU | WMO country code BD | ITU callsign prefixes V8A-V8Z | 
 Bulgaria
 Bulgaria
    
 Bulgaria
 Bulgaria| ISO 3166-1 numeric 100 | ISO 3166-1 alpha-3 BGR | ISO 3166-1 alpha-2 BG | ICAO airport code prefix LB | 
| E.164 code 359 | IOC country code BUL | Country code top-level domain .bg | ICAO aircraft regis. prefix LZ- | 
| E.212 mobile country code 284 | NATO three-letter code BGR | NATO two-letter code BU | LOC MARC code BU | 
| ITU Maritime ID 207 | ITU letter code BUL | FIPS country code BU | License plate code BG | 
| GS1 GTIN prefix 380 | UNDP country code BUL | WMO country code BU | ITU callsign prefixes LZA-LZZ | 
 Burkina Faso
 Burkina Faso
    
 Burkina Faso
 Burkina Faso| ISO 3166-1 numeric 854 | ISO 3166-1 alpha-3 BFA | ISO 3166-1 alpha-2 BF | ICAO airport code prefix DF | 
| E.164 code 226 | IOC country code BUR | Country code top-level domain .bf | ICAO aircraft regis. prefix XT- | 
| E.212 mobile country code 613 | NATO three-letter code BFA | NATO two-letter code UV | LOC MARC code UV | 
| ITU Maritime ID 633 | ITU letter code BFA | FIPS country code UV | License plate code BF | 
| GS1 GTIN prefix — | UNDP country code BKF | WMO country code HV | ITU callsign prefixes XTA-XTZ | 
 Burundi
 Burundi
    
 Burundi
 Burundi| ISO 3166-1 numeric 108 | ISO 3166-1 alpha-3 BDI | ISO 3166-1 alpha-2 BI | ICAO airport code prefix HB | 
| E.164 code 257 | IOC country code BDI | Country code top-level domain .bi | ICAO aircraft regis. prefix 9U- | 
| E.212 mobile country code 642 | NATO three-letter code BDI | NATO two-letter code BY | LOC MARC code BD | 
| ITU Maritime ID 609 | ITU letter code BDI | FIPS country code BY | License plate code RU | 
| GS1 GTIN prefix — | UNDP country code BDI | WMO country code BI | ITU callsign prefixes 9UA-9UZ |