Country code: +66
Official White Pages from TOT, the state owned telecoms company. In Thai. Select from the drop down options in the TOT Phonebook search box - the first option is the name of the person, second is businesses and companies, the third is government and the fourth option is reverse search by telephone number. Click on ค้นหา to search.
Good Yellow Pages site for Thailand. In Thai and English.
People search in the Yellow Pages site - only in Thai. Select the last tab ค้นหาบุคคล and click on search ค้นหา.