| # | COUNTRY NAME | COUNTRY CODE | BUSINESS FIRST / IDD ADD-ONS | BUSINESS FIRST PLUS & BUSINESS XTREME |
| 1 | Afghanistan | 93 | Yes | Yes |
| 2 | Albania | 355 | No | No |
| 3 | Algeria | 213 | No | No |
| 4 | American Samoa | 1-684 | Yes | Yes |
| 5 | Andorra | 376 | Yes | Yes |
| 6 | Angola | 244 | Yes | Yes |
| 7 | Anguilla | 1-264 | Yes | No |
| 8 | Antigua and Barbuda | 1-268 | No | Yes |
| 9 | Argentina | 54 | Yes | Yes |
| 10 | Armenia | 374 | Yes | No |
| 11 | Aruba | 297 | Yes | No |
| 12 | Ascension | 247 | No | No |
| 13 | Australia | 61 | Yes | Yes |
| 14 | Australian External Territories | 672 | No | No |
| 15 | Austria | 43 | Yes | Yes |
| 16 | Azerbaijan | 994 | Yes | Yes |
| 17 | Bahamas | 1-242 | Yes | Yes |
| 18 | Bahrain | 973 | Yes | Yes |
| 19 | Bangladesh | 880 | Yes | Yes |
| 20 | Barbados | 1-246 | Yes | No |
| 21 | Belarus | 375 | No | No |
| 22 | Belgium | 32 | Yes | Yes |
| 23 | Belize | 501 | No | Yes |
| 24 | Benin | 229 | Yes | No |
| 25 | Bermuda | 1-441 | Yes | Yes |
| 26 | Bhutan | 975 | Yes | Yes |
| 27 | Bolivia | 591 | Yes | Yes |
| 28 | Bosnia and Herzegovina | 387 | Yes | No |
| 29 | Botswana | 267 | Yes | Yes |
| 30 | Brazil | 55 | Yes | Yes |
| 31 | British Indian Ocean Territory | 246 | No | No |
| 32 | Brunei | 673 | Yes | Yes |
| 33 | Bulgaria | 359 | Yes | No |
| 34 | Burkina Faso | 226 | No | No |
| 35 | Burundi | 257 | No | No |
| 36 | Cambodia | 855 | Yes | Yes |
| 37 | Cameroon | 237 | No | No |
| 38 | Canada | 1 | Yes | Yes |
| 39 | Cape Verde | 238 | No | No |
| 40 | Cayman Islands | 1-345 | Yes | Yes |
| 41 | Central African Republic | 236 | No | No |
| 42 | Chad | 235 | No | No |
| 43 | Chile | 56 | Yes | Yes |
| 44 | China | 86 | Yes | Yes |
| 45 | Christmas Island | 61 | Yes | No |
| 46 | Cocos Islands | 61 | Yes | No |
| 47 | Colombia | 57 | Yes | Yes |
| 48 | Comoros | 269 | No | No |
| 49 | Congo | 242 | No | No |
| 50 | Congo, The Democratic Republic | 243 | No | No |
| 51 | Cook Islands | 682 | No | No |
| 52 | Costa Rica | 506 | Yes | Yes |
| 53 | Côte D'ivoire (Ivory Coast) | 225 | No | No |
| 54 | Croatia | 385 | Yes | No |
| 55 | Cuba | 53 | No | No |
| 56 | Curacao | 599 | Yes | No |
| 57 | Cyprus | 357 | Yes | Yes |
| 58 | Czech Republic | 420 | Yes | Yes |
| 59 | Denmark | 45 | Yes | Yes |
| 60 | Djibouti | 253 | No | Yes |
| 61 | Dominica Island | 1-767 | Yes | Yes |
| 62 | Dominican Republic | 1-809, 1-829, 1-849 | Yes | No |
| 63 | Ecuador | 593 | Yes | No |
| 64 | Egypt | 20 | Yes | Yes |
| 65 | El Salvador | 503 | Yes | No |
| 66 | Equatorial Guinea | 240 | No | No |
| 67 | Eritrea | 291 | No | No |
| 68 | Estonia | 372 | Yes | No |
| 69 | Ethiopia | 251 | No | Yes |
| 70 | Falkland Islands (Malvinas) | 500 | No | No |
| 71 | Faroe Islands | 298 | No | Yes |
| 72 | Fiji | 679 | No | No |
| 73 | Finland | 358 | Yes | No |
| 74 | France | 33 | Yes | Yes |
| 75 | French Guiana | 594 | Yes | Yes |
| 76 | French Polynesia | 689 | No | Yes |
| 77 | Gabon | 241 | No | No |
| 78 | Gambia | 220 | No | No |
| 79 | Georgia | 995 | Yes | Yes |
| 80 | Germany | 49 | Yes | Yes |
| 81 | Ghana | 233 | Yes | No |
| 82 | Gibraltar * | 350 | No | Yes |
| 83 | Greece | 30 | Yes | Yes |
| 84 | Greenland * | 299 | No | Yes |
| 85 | Grenada | 1-473 | No | Yes |
| 86 | Guam | 1-671 | Yes | Yes |
| 87 | Guatemala | 502 | Yes | Yes |
| 88 | Guernsey | 44-1481 | Yes | No |
| 89 | Guinea | 224 | No | No |
| 90 | Guinea-Bissau | 245 | No | No |
| 91 | Guyana | 592 | No | Yes |
| 92 | Haiti | 509 | No | No |
| 93 | Honduras | 504 | No | Yes |
| 94 | Hong Kong | 852 | Yes | Yes |
| 95 | Hungary | 36 | Yes | Yes |
| 96 | Iceland | 354 | Yes | Yes |
| 97 | India | 91 | Yes | Yes |
| 98 | Indonesia | 62 | Yes | Yes |
| 99 | Iran | 98 | Yes | Yes |
| 100 | Iraq | 964 | Yes | Yes |
| 101 | Ireland | 353 | Yes | Yes |
| 102 | Isle of Man | 44-1624 | Yes | No |
| 103 | Israel | 972 | Yes | No |
| 104 | Italy | 39 | Yes | Yes |
| 105 | Jamaica | 1-876 | Yes | No |
| 106 | Japan | 81 | Yes | Yes |
| 107 | Jersey | 44-1534 | Yes | No |
| 108 | Jordan | 962 | Yes | Yes |
| 109 | Kazakhstan | 7 | Yes | Yes |
| 110 | Kenya | 254 | Yes | Yes |
| 111 | Kiribati | 686 | No | No |
| 112 | Kosovo | 383 | Yes | No |
| 113 | Kuwait | 965 | Yes | Yes |
| 114 | Kyrgyzstan | 996 | Yes | No |
| 115 | Laos | 856 | Yes | Yes |
| 116 | Latvia | 371 | Yes | No |
| 117 | Lebanon | 961 | Yes | Yes |
| 118 | Lesotho | 266 | No | No |
| 119 | Liberia | 231 | No | No |
| 120 | Libya | 218 | No | Yes |
| 121 | Liechtenstein | 423 | No | Yes |
| 122 | Lithuania | 370 | No | No |
| 123 | Luxembourg | 352 | Yes | Yes |
| 124 | Macau | 853 | Yes | Yes |
| 125 | Macedonia | 389 | No | No |
| 126 | Madagascar | 261 | No | No |
| 127 | Malawi | 265 | No | No |
| 128 | Malaysia | 60 | Yes | Yes |
| 129 | Maldives | 960 | No | No |
| 130 | Mali | 223 | No | No |
| 131 | Malta | 356 | Yes | Yes |
| 132 | Mariana Islands | 1-670 | Yes | Yes |
| 133 | Marshall Islands | 692 | No | No |
| 134 | Martinique * | 596 | No | Yes |
| 135 | Mauritania | 222 | No | No |
| 136 | Mauritius | 230 | Yes | Yes |
| 137 | Mayotte (Réunion) | 262 | No | Yes |
| 138 | Mexico | 52 | Yes | Yes |
| 139 | Micronesia | 691 | No | No |
| 140 | Moldova | 373 | Yes | No |
| 141 | Monaco | 377 | No | No |
| 142 | Mongolia | 976 | Yes | Yes |
| 143 | Montenegro | 382 | No | No |
| 144 | Montserrat | 1-664 | No | Yes |
| 145 | Morocco | 212 | No | Yes |
| 146 | Mozambique | 258 | Yes | No |
| 147 | Myanmar | 95 | No | No |
| 148 | Namibia | 264 | Yes | No |
| 149 | Nauru | 674 | No | No |
| 150 | Nepal | 977 | Yes | Yes |
| 151 | Netherlands | 31 | Yes | Yes |
| 152 | Netherlands Antilles | 599 | Yes | Yes |
| 153 | New Caledonia | 687 | Yes | Yes |
| 154 | New Zealand | 64 | Yes | Yes |
| 155 | Nicaragua | 505 | Yes | Yes |
| 156 | Niger | 227 | No | No |
| 157 | Nigeria | 234 | Yes | Yes |
| 158 | Niue | 683 | No | No |
| 159 | Norfolk Island | 6723 | No | No |
| 160 | North Korea | 850 | No | No |
| 161 | Norway | 47 | Yes | Yes |
| 162 | Oman | 968 | Yes | Yes |
| 163 | Pakistan | 92 | Yes | Yes |
| 164 | Palau | 680 | No | No |
| 165 | Palestine | 970 | Yes | Yes |
| 166 | Panama | 507 | Yes | Yes |
| 167 | Papua New Guinea | 675 | No | No |
| 168 | Paraguay | 595 | Yes | Yes |
| 169 | Peru | 51 | Yes | Yes |
| 170 | Philippines | 63 | Yes | Yes |
| 171 | Pitcairn | 64 | Yes | No |
| 172 | Poland | 48 | Yes | Yes |
| 173 | Portugal | 351 | Yes | Yes |
| 174 | Puerto Rico | 1-787, 1-939 | Yes | No |
| 175 | Qatar | 974 | Yes | Yes |
| 176 | Reunion | 262 | Yes | No |
| 177 | Romania | 40 | Yes | Yes |
| 178 | Russia | 7 | Yes | Yes |
| 179 | Rwanda | 250 | No | Yes |
| 180 | Saint Barthélemy; Guadeloupe * | 590 | No | Yes |
| 181 | Saint Helena And Tristan Da Cunha | 290 | No | No |
| 182 | Saint Kitts and Nevis | 1-869 | No | Yes |
| 183 | Saint Lucia | 1-758 | Yes | No |
| 184 | Saint Martin | 590 | Yes | No |
| 185 | Saint Pierre and Miquelon | 508 | Yes | Yes |
| 186 | Samoa (Western) | 685 | No | No |
| 187 | San Marino | 378 | No | No |
| 188 | Sao Tome and Principe | 239 | Yes | No |
| 189 | Saudi Arabia | 966 | Yes | Yes |
| 190 | Senegal | 221 | Yes | No |
| 191 | Serbia | 381 | No | No |
| 192 | Seychelles | 248 | No | No |
| 193 | Sierra Leone | 232 | No | No |
| 194 | Singapore | 65 | Yes | Yes |
| 195 | Sint Maarten | 1-721 | Yes | No |
| 196 | Slovakia | 421 | Yes | Yes |
| 197 | Slovenia | 386 | Yes | No |
| 198 | Solomon Islands | 677 | No | No |
| 199 | Somalia | 252 | No | No |
| 200 | South Africa | 27 | Yes | Yes |
| 201 | South Korea | 82 | Yes | Yes |
| 202 | South Sudan | 211 | Yes | No |
| 203 | Spain | 34 | Yes | Yes |
| 204 | Sri Lanka | 94 | Yes | Yes |
| 205 | St Vincent The Grenadines | 1-784 | Yes | Yes |
| 206 | Sudan | 249 | Yes | Yes |
| 207 | Suriname | 597 | Yes | No |
| 208 | Svalbard and Jan Mayen | 47 | Yes | No |
| 209 | Swaziland | 268 | Yes | Yes |
| 210 | Sweden | 46 | Yes | Yes |
| 211 | Switzerland | 41 | Yes | Yes |
| 212 | Syria | 963 | Yes | Yes |
| 213 | Taiwan | 886 | Yes | Yes |
| 214 | Tajikistan | 992 | Yes | Yes |
| 215 | Tanzania | 255 | Yes | No |
| 216 | Thailand | 66 | Yes | Yes |
| 217 | Timor-Leste (East Timor) | 670 | No | No |
| 218 | Togo | 228 | Yes | No |
| 219 | Tokelau | 690 | No | No |
| 220 | Tonga | 676 | No | No |
| 221 | Trinidad and Tobago | 1-868 | Yes | No |
| 222 | Tunisia | 216 | No | No |
| 223 | Turkey | 90 | Yes | Yes |
| 224 | Turkmenistan | 993 | Yes | Yes |
| 225 | Turks and Caicos Islands | 1-649 | Yes | Yes |
| 226 | Tuvalu | 688 | No | No |
| 227 | Uganda | 256 | Yes | No |
| 228 | Ukraine | 380 | Yes | No |
| 229 | United Arab Emirates | 971 | Yes | Yes |
| 230 | United Kingdom | 44 | Yes | Yes |
| 231 | United States | 1 | Yes | Yes |
| 232 | Uruguay | 598 | Yes | Yes |
| 233 | Uzbekistan | 998 | Yes | Yes |
| 234 | Vanuatu | 678 | No | No |
| 235 | Vatican | 379 | Yes | No |
| 236 | Venezuela | 58 | Yes | Yes |
| 237 | Vietnam | 84 | Yes | Yes |
| 238 | Virgin Islands (British) | 1-284 | Yes | Yes |
| 239 | Virgin Islands (U.S.) | 1-340 | Yes | Yes |
| 240 | Wallis and Futuna | 681 | No | No |
| 241 | Western Sahara | 212 | Yes | No |
| 242 | Yemen | 967 | Yes | Yes |
| 243 | Zambia | 260 | No | No |
| 244 | Zimbabwe | 263 | No | No |