Thailand
| Company | Advance Telecom System Co. Ltd |
| Contact | Poondatch Chaichan |
| Address | 222/224 Ruammitrpattana Moo 3 Ramintra Road Tharang, Bangkhen Bangkok 10220 |
| Phone | + [66] 2 905 8127 |
| Fax | +[66} 2 905 8126 |
| Company | Advance Telecom System Co. Ltd |
| Contact | Poondatch Chaichan |
| Address | 222/224 Ruammitrpattana Moo 3 Ramintra Road Tharang, Bangkhen Bangkok 10220 |
| Phone | + [66] 2 905 8127 |
| Fax | +[66} 2 905 8126 |