Lahul (Keylong) STD Code
| City | Lahul (Keylong) |
| STD Code | 01900 |
| District | Kullu |
| State | Himachal Pradesh |
STD Code of Lahul (Keylong) is 01900. This city is located in Kullu district of Himachal Pradesh state in India. To call landline phones of Lahul (Keylong), you must add 01900 before the number.