Valliyoor STD Code
| City | Valliyoor |
| STD Code | 04637 |
| District | Tirunelvelli |
| State | Tamilnadu |
STD Code of Valliyoor is 04637. This city is located in Tirunelvelli district of Tamilnadu state in India. To call landline phones of Valliyoor, you must add 04637 before the number.