Entry Requirements To Thailand
A VISA IS NOT REQUIRED for a stay of up to 21 days, but is needed for longer stays.
Passport Note: Everyone entering Thailand must have a passport valid for at least six months beyond the intended period of stay.

Health:
No special Vaccination Certificates are required for Thailand.
No Injections are needed Before you Leave

Telephone Services :
At present, all telephone numbers (for local calls and long distance calls within the country) have nine digits.
For Bangkok calls, 02 is added to the existing numbers i.e. 0 2694 1222 .
For provincial calls, an area code is added to the existing numbers. For example, area code for Chiang Mai is 053 = 0 5324 8604 ; area code for Phuket is 076 = 0 7621 1036 .
For mobile phones, 01 or 09 is added to the existing numbers.
The new system has no effect on international phone calls.
The international dialing code for Thailand is 66.
When making international calls to Thailand, add 66 and omit the leading 0.
When making international calls from Thailand, first dial 001+country code+area code+telephone number
If calling Laos or Malaysia, there is a special code which is charged at a semi-domestic rate.
When calling Laos, first dial 007+856+area code+telephone number
When calling Malaysia, first dial 09+06+area code+telephone number
Direct assistance: 1133 (local), 100 (international)

Emergency Telephone Numbers
Central Emergency (Police, Ambulance, Fire) : 191
Highway Patrol : 1193
Crime Suppression : 195 or (662) 513 3844
Tourist Police (English, French and German spoken) : 1155
Tourism Authority of Thailand (TAT) Call Centre : 1672