Keonjhar STD Code
| City | Keonjhar |
| STD Code | 06766 |
| District | Dhenkanal |
| State | Odisha |
STD Code of Keonjhar is 06766. This city is located in Dhenkanal district of Odisha state in India. To call landline phones of Keonjhar, you must add 06766 before the number.