1-2 Call International Dialling Code for lower cost calls

[MrWorldwide]

Scratch that - found it ...

http://www.ais.co.th/12call/en/service-AIN.html

Dialling Codes for Cheaper International Calls

The general international dialling code from Thailand is 001. However, when using a pre-paid SIM card refer to the websites above or the leaflet provided with your SIM card to check on which prefix code to use for the best rate. For instance, I use DTAC (Happy). To make an international call to a landline number in the UK, if I use the prefix 004 the cost of the call is 5 Baht per minute. If I don’t use the 004 prefix, the call is charged at a premium rate of 17 Baht per minute. Different network providers use different prefixes, for instance True Move currently uses the prefix 006 for first class quality calls and another prefix, 00600, for low cost calls (currently as low as 1.5 Baht to Australia, Canada, UK and USA).

http://www.thaizer.com/basics/how-to-make-an-international-call-from-thailand-using-a-thai-sim-card/

Edited June 25, 2014 by MrWorldwide