Countries
- AC - Ascension Island
- AD - Andorra
- AE - United Arab Emirates
- AF - Afghanistan
- AG - Antigua and Barbuda
- AI - Anguilla
- AL - Albania
- AM - Armenia
- AN - Netherlands Antilles
- AO - Angola
- AQ - Antarctica
- AR - Argentina
- AS - American Samoa
- AT - Austria
- AU - Australia
- AW - Aruba
- AX - Åland Islands
- AZ - Azerbaijan
- BA - Bosnia and Herzegovina
- BB - Barbados
- BD - Bangladesh
- BE - Belgium
- BF - Burkina Faso
- BG - Bulgaria
- BH - Bahrain
- BI - Burundi
- BJ - Benin
- BL - Saint Barthélemy
- BM - Bermuda
- BN - Brunei
- BO - Bolivia
- BQ - British Antarctic Territory
- BR - Brazil
- BS - Bahamas
- BT - Bhutan
- BV - Bouvet Island
- BW - Botswana
- BY - Belarus
- BZ - Belize
- CA - Canada
- CC - Cocos [Keeling] Islands
- CD - Congo - Kinshasa
- CD - Congo [DRC]
- CF - Central African Republic
- CG - Congo - Brazzaville
- CG - Congo [Republic]
- CH - Switzerland
- CI - Côte d’Ivoire
- CI - Ivory Coast
- CK - Cook Islands
- CL - Chile
- CM - Cameroon
- CN - China
- CO - Colombia
- CP - Clipperton Island
- CR - Costa Rica
- CS - Serbia and Montenegro
- CT - Canton and Enderbury Islands
- CU - Cuba
- CV - Cabo Verde
- CX - Christmas Island
- CY - Cyprus
- CZ - Czech Republic
- DE - Germany
- DG - Diego Garcia
- DJ - Djibouti
- DK - Denmark
- DM - Dominica
- DO - Dominican Republic
- DZ - Algeria
- EA - Ceuta and Melilla
- EC - Ecuador
- EE - Estonia
- EG - Egypt
- EH - Western Sahara
- ER - Eritrea
- ES - Spain
- ET - Ethiopia
- FI - Finland
- FJ - Fiji
- FK - Falkland Islands
- FK - Falkland Islands [Islas Malvinas]
- FM - Micronesia
- FO - Faroe Islands
- FQ - French Southern and Antarctic Territories
- FR - France
- FX - Metropolitan France
- GA - Gabon
- GB - United Kingdom
- GD - Grenada
- GE - Georgia
- GF - French Guiana
- GG - Guernsey
- GH - Ghana
- GI - Gibraltar
- GL - Greenland
- GM - Gambia
- GN - Guinea
- GP - Guadeloupe
- GQ - Equatorial Guinea
- GR - Greece
- GS - South Georgia and the South Sandwich Islands
- GT - Guatemala
- GU - Guam
- GW - Guinea-Bissau
- GY - Guyana
- HK - Hong Kong
- HM - Heard Island and McDonald Islands
- HN - Honduras
- HR - Croatia
- HT - Haiti
- HU - Hungary
- IC - Canary Islands
- ID - Indonesia
- IE - Ireland
- IL - Israel
- IM - Isle of Man
- IN - India
- IO - British Indian Ocean Territory
- IQ - Iraq
- IR - Iran
- IS - Iceland
- IT - Italy
- JE - Jersey
- JM - Jamaica
- JO - Jordan
- JP - Japan
- JT - Johnston Island
- KE - Kenya
- KG - Kyrgyzstan
- KH - Cambodia
- KI - Kiribati
- KM - Comoros
- KN - Saint Kitts and Nevis
- KP - North Korea
- KR - South Korea
- KW - Kuwait
- KY - Cayman Islands
- KZ - Kazakhstan
- LA - Laos
- LB - Lebanon
- LC - Saint Lucia
- LI - Liechtenstein
- LK - Sri Lanka
- LR - Liberia
- LS - Lesotho
- LT - Lithuania
- LU - Luxembourg
- LV - Latvia
- LY - Libya
- MA - Morocco
- MC - Monaco
- MD - Moldova
- ME - Montenegro
- MF - Saint Martin
- MG - Madagascar
- MH - Marshall Islands
- MI - Midway Islands
- MK - Macedonia
- MK - Macedonia [FYROM]
- ML - Mali
- MM - Myanmar [Burma]
- MN - Mongolia
- MO - Macau SAR China
- MO - Macau
- MP - Northern Mariana Islands
- MQ - Martinique
- MR - Mauritania
- MS - Montserrat
- MT - Malta
- MU - Mauritius
- MV - Maldives
- MW - Malawi
- MX - Mexico
- MY - Malaysia
- MZ - Mozambique
- NA - Namibia
- NC - New Caledonia
- NE - Niger
- NF - Norfolk Island
- NG - Nigeria
- NI - Nicaragua
- NL - Netherlands
- NO - Norway
- NP - Nepal
- NQ - Dronning Maud Land
- NR - Nauru
- NU - Niue
- NZ - New Zealand
- OM - Oman
- PA - Panama
- PC - Pacific Islands Trust Territory
- PE - Peru
- PF - French Polynesia
- PG - Papua New Guinea
- PH - Philippines
- PK - Pakistan
- PL - Poland
- PM - Saint Pierre and Miquelon
- PN - Pitcairn Islands
- PR - Puerto Rico
- PS - Palestinian Territories
- PT - Portugal
- PU - U.S. Miscellaneous Pacific Islands
- PW - Palau
- PY - Paraguay
- PZ - Panama Canal Zone
- QA - Qatar
- QO - Outlying Oceania
- RE - Réunion
- RO - Romania
- RS - Serbia
- RU - Russia
- RW - Rwanda
- SA - Saudi Arabia
- SB - Solomon Islands
- SC - Seychelles
- SD - Sudan
- SE - Sweden
- SG - Singapore
- SH - Saint Helena
- SI - Slovenia
- SJ - Svalbard and Jan Mayen
- SK - Slovakia
- SL - Sierra Leone
- SM - San Marino
- SN - Senegal
- SO - Somalia
- SR - Suriname
- ST - São Tomé and Príncipe
- SV - El Salvador
- SY - Syria
- SZ - Swaziland
- TA - Tristan da Cunha
- TC - Turks and Caicos Islands
- TD - Chad
- TF - French Southern Territories
- TG - Togo
- TH - Thailand
- TJ - Tajikistan
- TK - Tokelau
- TL - Timor-Leste
- TL - East Timor
- TM - Turkmenistan
- TN - Tunisia
- TO - Tonga
- TR - Turkey
- TT - Trinidad and Tobago
- TV - Tuvalu
- TW - Taiwan
- TZ - Tanzania
- UA - Ukraine
- UG - Uganda
- UM - U.S. Minor Outlying Islands
- US - United States
- UY - Uruguay
- UZ - Uzbekistan
- VA - Vatican City
- VC - Saint Vincent and the Grenadines
- VD - North Vietnam
- VE - Venezuela
- VG - British Virgin Islands
- VI - U.S. Virgin Islands
- VN - Vietnam
- VU - Vanuatu
- WF - Wallis and Futuna
- WK - Wake Island
- WS - Samoa
- YD - People's Democratic Republic of Yemen
- YE - Yemen
- YT - Mayotte
- ZA - South Africa
- ZM - Zambia
- ZW - Zimbabwe
Canadian Provinces
- AB - Alberta
- BC - British Columbia
- MB - Manitoba
- NB - New Brunswick
- NL - Newfoundland
- NT - Northwest Territories
- NS - Nova Scotia
- NU - Nunavut
- ON - Ontario
- PE - Prince Edward Island
- QC - Quebec
- SK - Saskatchewan
- YT - Yukon
U.S. States
- AL - Alabama
- AK - Alaska
- AS - America Samoa
- AZ - Arizona
- AR - Arkansas
- AA - Armed Forces Americas
- AE - Armed Forces
- AP - Armed Forces Pacific
- CA - California
- CO - Colorado
- CT - Connecticut
- DE - Delaware
- DC - District of Columbia
- FM - Federated States of Micronesia
- FL - Florida
- GA - Georgia
- GU - Guam
- HI - Hawaii
- ID - Idaho
- IL - Illinois
- IN - Indiana
- IA - Iowa
- KS - Kansas
- KY - Kentucky
- LA - Louisiana
- ME - Maine
- MH - Marshall Islands
- MD - Maryland
- MA - Massachusetts
- MI - Michigan
- MN - Minnesota
- MS - Mississippi
- MO - Missouri
- MT - Montana
- NE - Nebraska
- NV - Nevada
- NH - New Hampshire
- NJ - New Jersey
- NM - New Mexico
- NY - New York
- NC - North Carolina
- ND - North Dakota
- MP - Northern Mariana Islands
- OH - Ohio
- OK - Oklahoma
- OR - Oregon
- PA - Pennsylvania
- PR - Puerto Rico
- PW - Palau
- RI - Rhode Island
- SC - South Carolina
- SD - South Dakota
- TN - Tennessee
- TX - Texas
- UT - Utah
- VA - Virginia
- VI - Virgin Islands
- VT - Vermont
- WA - Washington
- WI - Wisconsin
- WV - West Virginia
- WY - Wyoming