Kaisarganj-I (Kaiserganj) STD Code
| City | Kaisarganj-I (Kaiserganj) |
| STD Code | 05251 |
| District | Bahraich |
| State | Uttar Pradesh - East |
STD Code of Kaisarganj-I (Kaiserganj) is 05251. This city is located in Bahraich district of Uttar Pradesh - East state in India. To call landline phones of Kaisarganj-I (Kaiserganj), you must add 05251 before the number.