Haldwani-I STD Code
| City | Haldwani-I |
| STD Code | 05946 |
| District | Nainital |
| State | Uttar Pradesh - West |
STD Code of Haldwani-I is 05946. This city is located in Nainital district of Uttar Pradesh - West state in India. To call landline phones of Haldwani-I, you must add 05946 before the number.