BANGKOK
NORTHERN
SOUTHERN
EASTERN
NORTHEASTERN
DTAC
Level 2
"อา.-พฤ. 10.00 - 21.00 น. ศ.-ส. 10.00 - 22.00 น. วันหยุดนักขัตฤกษ์ 10.00 - 22.00 น"
Mobile phone service business By beginning mobile phone service in the 800 MHz and 1800 MHz frequencies under a joint operating agreement in the form of "Build-transfer-operate" from CAT Telecom Public Company Limited (formerly the Communications Authority of Thailand)