Siwana (W) STD Code
| City | Siwana (W) |
| STD Code | 02901 |
| District | Barmer |
| State | Rajasthan |
STD Code of Siwana (W) is 02901. This city is located in Barmer district of Rajasthan state in India. To call landline phones of Siwana (W), you must add 02901 before the number.