Today is the deadline for the registration of SIM cards, Thakorn Tantasit, secretary general of the National Broadcast Telecommunication Commission, said.
He is encouraging prepaid users to visit their service provider and register by tonight. Customers must provide their ID cards at the counter when registering..
In addition to service provider outlets, registration can be made at district and local administration offices across the country. Nearly 80 per cent of mobile phone users in Thailand use prepaid plans.
The registration was initated after bombers in the south used unregistered mobile phones to trigger explosions.