- COM -US Commercial
- EDU -US Educational
- GOV -US Government
- INT -International
- MIL -US Military
- NET -Network
- ORG -Non-Profit Organization
- NATO -Nato field
- AD -Andorra (+33)
- AE -United Arab Emirates (+971)
- AF -Afghanistan (+93)
- AG -Antigua and Barbuda (+1-268)
- AI -Anguilla (+1-264)
- AL -Albania (+355)
- AM -Armenia
- AN -Netherlands Antilles (+599)
- AO -Antarctica
- AR -Argentina (+54)
- AS -American Samoa (+684)
- AT -Austria (+43)
- AU -Australia (+61)
- AW -Aruba
- AZ -Azerbaijan
- BA -Bosnia and Herzegovina (+387)
- BB -Barbados (+1-246)
- BD -Bangladesh (+880)
- BE -Belgium (+32)
- BF -Burkina Faso (+226)
- BG -Bulgaria (+359)
- BH -Bahrain (+973)
- BI -Burundi (+257)
- BJ -Benin (+229)
- BM -Bermuda (+1-441)
- BN -Brunei Darussalam (+673)
- BO -Bolivia (+591)
- BR -Brazil (+55)
- BS -Bahamas (+1-242)
- BT -Bhutan
- BV -Botswana (+267)
- BY -Belarus (+375)
- BZ -Belize (+501)
- CA -Canada
- CC -Cocos (Keeling) Islands (+672)
- CF -Central African Republic (+236)
- CG -Congo
- CH -Switzerland (+41)
- CI -Cote D'Ivoire (Ivory Coast)
- CK -Cook Islands (+682)
- CL -Chile (+56)
- CM -Cameroon (+237)
- CN -China (+86)
- CO -Colombia (+57)
- CR -Costa Rica (+506)
- CS -Czechoslovakia (former)
- CU -Cuba (+53)
- CV -Cape Verde (+238)
- CX -Christmas Island
- CY -Cyprus (+357)
- CZ -Czech Republic (+420)
- DE -Germany (+49)
- DJ -Djibouti (+253)
- DK -Denmark (+45)
- DM -Dominica (+1-767)
- DO -Dominican Republic (+1-809)
- DZ -Algeria (+21)
- EC -Ecuador (+593)
- EE -Estonia (+372)
- EG -Egypt (+20)
- EH -Western Sahara (+21)
- ER -Eritrea
- ES -Spain (+34)
- ET -Ethiopia (+251)
- FI -Finland (+358)
- FJ -Fiji (+679)
- FK -Falkland Islands (Malvinas) (+500)
- FM -Micronesia
- FO -Faeroe Islands (+298)
- FR -France (+33)
- FX -France, Metropolitan
- GA -Gabon (+241)
- GB -Great Britain (UK)
- GD -Grenada (+1-473)
- GE -Georgia (+995)
- GF -French Guiana (+594)
- GG -Guernsey
- GH -Ghana (+233)
- GI -Gibraltar (+350)
- GL -Greenland (+299)
- GM -Gambia (+220)
- GN -Guinea (+224)
- GP -Guadeloupe
- GQ -Equatorial Guinea (+240)
- GR -Greece (+30)
- GS -S. Georgia and S. Sandwich Isls.
- GT -Guatemala (+502)
- GU -Guam (+1-671, +671)
- GW -Guinea-Bissau (+245)
- GY -Guyana (+592)
- HK -Hong Kong (+852)
- HM -Heard and McDonald Islands
- HN -Honduras (+504)
- HR -Croatia (Hrvatska) (+385)
- HT -Haiti (+509)
- HU -Hungary (+36)
- ID -Indonesia (+62)
- IE -Ireland (+353)
- IL -Israel (+972)
- IM -Isle of Man
- IN -India (+91)
- IO -British Indian Ocean Territory
- IQ -Iraq (+964)
- IR -Iran (+98)
- IS -Iceland (+354)
- IT -Italy (+39)
- JE -Jersey
- JM -Jamaica (+1-876)
- JO -Jordan (+962)
- JP -Japan (+81)
- KE -Kenya (+254)
- KG -Kyrgyzstan
- KH -Cambodia (+855)
- KI -Kiribati Republic (+686)
- KM -Comoros
- KN -Saint Kitts and Nevis (+1-869)
- KP -Korea (North) (+) (+850)
- KR -Korea (South) (+82)
- KW -Kuwait (+965)
- KY -Cayman Islands (+1-345)
- KZ -Kazakhstan
- LA -Laos (+856)
- LB -Lebanon (+961)
- LC -Saint Lucia
- LI -Liechtenstein (+41)
- LK -Sri Lanka (+94)
- LR -Liberia (+231)
- LS -Lesotho (+266)
- LT -Lithuania (+370)
- LU -Luxembourg (+352)
- LV -Latvia (+371)
- LY -Libya (+21)
- MA -Morocco (+212)
- MC -Monaco (+33)
- MD -Moldova
- MG -Madagascar (+261)
- MH -Marshall Islands (+692)
- MK -Macedonia (+389)
- ML -Mali (+223)
- MM -Myanmar (+95)
- MN -Mongolia (+976)
- MO -Macau (+853)
- MP -Northern Mariana Islands
- MQ -Martinique (+596)
- MR -Mauritania (+222)
- MS -Montserrat (+1-664, +1-809)
- MT -Malta (+356)
- MU -Mauritius (+230)
- MV -Maldives (+960)
- MW -Malawi
- MX -Mexico (+52)
- MY -Malaysia (+60)
- MZ -Mozambique (+258)
- NA -Namibia (+264)
- NC -New Caledonia (+687)
- NE -Niger (+227)
- NF -Norfolk Island (+672)
- NG -Nigeria (+234)
- NI -Nicaragua (+505)
- NL -Netherlands (+31)
- NO -Norway (+47)
- NP -Nepal (+977)
- NR -Nauru (+674)
- NT -Neutral Zone
- NU -Niue (+683)
- NZ -New Zealand (Aotearoa) (+64)
- OM -Oman (+968)
- PA -Panama (+507)
- PE -Peru (+51)
- PF -French Polynesia (+689)
- PG -Papua New Guinea (+675)
- PH -Philippines (+63)
- PK -Pakistan (+92)
- PL -land (+48)
- PM -St. Pierre and Miquelon (+508)
- PN -Pitcairn
- PR -Puerto Rico (+1-787)
- PT -Portugal (+351)
- PW -Palau
- PY -Paraguay (+595)
- QA -Qatar (+974)
- RE -Reunion (+262)
- RO -Romania (+40)
- RU -Russian Federation (+7)
- RW -Rwandese Republic (+250)
- SA -Saudi Arabia (+966)
- SB -Solomon Islands (+677)
- SC -Seychelles (+248)
- SD -Sudan (+249)
- SE -Sweden (+46)
- SG -Singapore (+65)
- SH -St. Helena (+247)
- SI -Slovenia (+386)
- SJ -Svalbard and Jan Mayen Islands (+47)
- SK -Slovak Republic (+421)
- SL -Sierra Leone (+232)
- SM -San Marino (+39)
- SN -Senegal (+221)
- SO -Somalia (+252)
- SR -Suriname (+597)
- ST -Sao Tome and Principe (+239)
- SU -USSR (former) (+7)
- SV -El Salvador (+503)
- SY -Syria (+963)
- SZ -Swaziland (+268)
- TC -Turks and Caicos Islands (+1-649)
- TD -Chad (+235)
- TF -French Southern Territories
- TG -Togo
- TH -Thailand (+66)
- TJ -Tajikistan
- TK -Tokelau (+690)
- TM -Turkmenistan
- TN -Tunisia (+21)
- TO -Tonga (+676)
- TP -East Timor (+62)
- TR -Turkey (+90)
- TT -Trinidad and Tobago (+1-868)
- TV -Tuvalu (+688)
- TW -Taiwan (+886)
- TZ -Tanzania (+255)
- UA -Ukraine (+380)
- UG -Uganda (+256)
- UK -United Kingdom (+44)
- UM -US Minor Outlying Islands
- US -United States (+1)
- UY -Uruguay (+598)
- UZ -Uzbekistan
- VA -Vatican City State (Holy See) (+39)
- VC -Saint Vincent and the Grenadines (+1-784)
- VE -Venezuela (+58)
- VG -Virgin Islands (British) (+1-284)
- VI -Virgin Islands (U.S.) (+1-340)
- VN -Vietnam (+84)
- VU -Vanuatu (+678)
- WF -Wallis and Futuna Islands (+681)
- WS -Samoa
- YE -Yemen
- YT -Mayotte
- YU -Yugoslavia (+381)
- ZA -South Africa (+27)
- ZM -Zambia (+260)
- ZR -Zaire (+243)
- ZW -Zimbabwe (+263)