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Enterprise Customer Department

Location
99 Moo 3 CAT Customer Service Bld. 5th floor, Chang Watthana Rd., Thung Song Hong, Laksi, Bangkok 10210-0298
Office Hours
Mon-Fri 08.30 - 16.30 hrs.
Telephone
0 2104 4408-11, 0 2104 4845-7
Fax
0 2104 4098, 0 2104 4715

Government Sector Customer Department

Location
99 Moo 3 CAT Customer Service Bld., 4th Floor,. Chang Watthana Rd., Thung Son Hong, Laksi, Bangkok 10210-0298
Office Hours
Mon-Fri 08.30-16.30 hrs.
Telephone
0 2104 4401-3, 0 2104 4776-82
Fax
0 2104 4406, 0 2104 4575

Private Sector Customer Department

Location
99 Moo 3 CAT Customer Service Bld., 2nd Floor, Chang Watthana Rd., Thung Song Hong, Laksi, Bangkok 10210-0298
Office Hours
Mon-Fri 08.30-16.30 hrs.
Telephone
0 2104 4750-1, 0 2104 4753-8, 0 2104 4760-5
Fax
0 2104 3509, 0 2104 4579, 0 2104 4717

CAT Customer Service Department : Metropolitan Region

Location
99 Moo 3 CAT Customer Service Bld. 2nd Floor, Chang Watthana Rd., Thung Song Hong, Laksi, Bangkok 10210-0298
Office Hours
Mon-Fri 08.30-16.30 hrs.
Telephone
0 2104 4649, 0 2104 3099
Fax
0 2104 4810

CAT Tower

Location
72 CAT Tower Bld., Soi Maungkae, Charoenkrung Rd. Bang Rak, Bangkok 10500
Office Hours
Mon-Fri 08.30-16.30 hrs.
Telephone
0 2104 1000

Nonthaburi Telecommunication Center

Location
53/58 Moo 8 Tiwanon Rd., Tambon Bang Krasor, Amphoe Mueang, Nonthaburi 11000
Office Hours
Mon-Fri 08.30-16.30 hrs.
Telephone
0 2104 7011, 0 2104 7168-9
Fax
0 2104 7170