TSTT: Service, billing, Payment & general inquiries | 800-2455(BILL) | 18 Park Street Port of Spain |
Residential Services | 824-8788(TSTT) | 18 Park Street Port of Spain |
| 1 Edward Street Port of Spain | ||
| 10 St James Street San Fernando | ||
| Peters Road Point Fortin | ||
| Penco Street Chaguanas | ||
| Caroline Building Wilson Road Scarborough, Tobago | ||
Corporate Customer Services1 | 824-8788(TSTT) | 52 Jerningham Avenue Belmont |
| 22-26 St James Street San Fernando | ||
| Caroline Building Wilson Road Scarborough, Tobago | ||
Cellular Services | 824-8788(TSTT) | 114 Frederick Street Port of Spain |
| D.S.N. Mall Chaguanas | ||
| 22-26 St James Street San Fernando | ||
| Trinvity Mall Level 2 Trincity | ||
| West Mall Level 2 West Mooring | ||
| Caroline Building Wilson Road Scarborough, Tobago | ||
TSTT Telephone | 824-8788(TSTT) | 114 Frederick Street Port of Spain |
| notes: | ||