A
| Country | Number |
| Australia | 0 2344 6300 |
| Australia (Chiangmai branch) | 0-5349-2480 |
| Australia (Phuket branch) | 0-7637-2600 |
| Australia (Surat Thani Branch) | 0-7792-0281 |
| Austria | 0 2105 6700-09 |
B
| Country | Number |
| Bangladesh | 02 266 6565 |
| Belgium | 02 108 1810 |
| Bhutan | 0 2274 4740-2 |
| Brazil | 0 2679 8567-8 |
| Brunei | 0 2714 7395-99 |
C
| Country | Number |
| Cambodia | 0 2957 5851-2 |
| Cambodia (Sakaeo Branch) | 0-3723-0204 |
| Canada | 0 2646 4300 |
| Chile | 0 2260 0045-8 |
| China | 0 2245 0088 |
| China (Chiangmai Branch) | 0 5327 6457 |
| China (Khon Kaen Branch) | 0 432 26873 |
| China (Phuket Branch) | 076 304 180 |
| Cuba | 0 2665 2803 |
| Czech | 0 2250 9223-4 |
D
| Country | Number |
| Democratic People?s Republic of Korea | 0 2319 2686 |
| Denmark | 0 2343 1100 |
E
| Country | Number |
| EGYPT | 0 2726 9831-3 |
F
| Country | Number |
| Finland | 0 2207 8700 |
| France | 0 2657 5100 |
| France (Chiangmai Branch) | 0-5328-1466 |
| France (Phuket Branch) | 0-7627-3511 |
| France (Surat Thani Branch) | 0-7796-1711 |
G
| Country | Number |
| Germany | 0 2287 9000 |
| Germany (Chiangmai Branch) | 0-5383-8735 |
| Germany (Pattaya Branch) | 0-3871-3613 |
| Germany (Phuket Branch) | 0-7661-0407 |
| Greece | 0 2667 0090-2 |
H
| Country | Number |
| Holy See | 0 2212 5853-4 |
| Hungary | 0 2118 9600 |
I
| Country | Number |
| India | 0 2258 0300-6 |
| India (Chiangmai Branch) | 0-5324-3066 |
| India (Song Khla Branch) | 0-7430-7313 |
| Indonesia | 0 2252 3135-40 |
| Indonesia (Song Khla Branch) | 0-7431-1544 |
| Iran | 0 2390 0871-3 |
| Ireland | 02 016 1360 |
| Israel | 0 2204 9200 |
| Italy | 0 2250 4970 |
| Italy (Chiangmai Branch) | 0-5321-2925 |
| Italy (Phuket Branch) | 08-6689-6819 |
J
| Country | Number |
| Japan | 0 2696 3000 |
| Japan (Chiangmai Branch) | 0-5320-3367 |
K
| Country | Number |
| Kazakhstan | 0 2254 3043-5 |
| Kenya | 0 2712 5721 |
L
| Country | Number |
| Laos | 0 2539 6679 |
| Laos (Khon Kaen Branch) | 0-4324-2858 |
| Libya | 02 672 9200 |
| Luxembourg | 0 2677 7360 |
M
| Country | Number |
| Malaysia | 0 2629 6800 |
| Malaysia (Song Khla Branch) | 0-7431-1062 |
| Malta | 0 2771 7597 |
| Mexico | 0 2285 0995 |
| Mongolia | 0 2381 1400 |
| Morocco | 0 2679 5604-6 |
N
| Country | Number |
| Nepal | 0 2391 7240 |
| Netherlands | 0 2309 5200 |
| Netherlands (Chiangmai Branch) | 0-5380-6816 |
| Netherlands (Phuket Branch) | 0-7630-4096-97 |
| New Zealand | 0 2254 2530 |
| Nigeria | 0 2711 3076-8 |
| Norway | 0 2204 6500 |
| Norway (Pattaya Branch) | 0-3823-1630 |
| Norway (Phuket Branch) | 0-7623-7156 |
O
| Country | Number |
| Oman | 0 2639 9380-2 |
P
| Country | Number |
| Pakistan | 0 2253 0288-9 |
| Panama | 0 2679 7988-90 |
| Peru | 0 2260 6243 |
| Poland | 0 2645 0367 |
| Portugal | 0 2234 2123 |
Q
| Country | Number |
| Qatar | 0 2660 1111 |
R
| Country | Number |
| Republic of Korea | 0 2247 7537-39 |
| Republic of Korea (Chiangmai branch) | 0-5322-3120 |
| Republic of Korea (Phuket branch) | 0-7623-4452 |
| Romania | 0 2240 2522 |
| Russia | 0 2234 9824 |
| Russia (Pattaya Branch) | 0-3825-0141 |
| Russia (Phuket Branch) | 0-7628-4767 |
S
| Country | Number |
| Saudi Arabia | 0 2639 2999 |
| Singapore | 0 2286 2111 |
| Slovakia | 0 2677 3445-6 |
| South Africa | 0 2659 2900 |
| Spain | 0 2661 8284-6 |
| Sri Lanka | 0 2261 1938 |
| Sweden | 0 2263 7200 |
| Sweden (Chiangmai Branch) | 0-5329-8632 |
| Sweden (Pattaya Branch) | 0-3836-4485 |
| Switzerland | 0 2674 6900 |
T
| Country | Number |
| The Republic of the Philippines | 0 2259 0139-40 |
| Turkey | 0 2355 5486-87 |
U
| Country | Number |
| Ukraine | 0 2685 3216 |
| Union of Myanmar | 0 2234 0278 |
| United Arab Emirates | 0 2402 4000 |
| United Kingdom | 0 2305 8333 |
| United Kingdom (Chiangmai Branch) | 0-5326-3015 |
| United Kingdom (Phuket Branch) | 0-7631-8188 |
| United Kingdom (Surat Thani Branch) | 08-6941-0649 |
| United States of America | 02-205-4000 |
| United States of America (Chiangmai Branch) | 0-5325-2629 |
| Uzbekistan | 0-2675-3995 |
V
| Country | Number |
| Vietnam | 0 2251 5838 |
| Vietnam (Khon Kaen Branch) | 0-4324-2190 |