| Office Name | Jonai S.O |
| Pincodes | 787060 |
| Area | Jonai |
| Office Status | Sub Post Office |
| Postal Circle | Assam |
| Postal Division | Dibrugarh |
| Postal Region | Dibrugarh |
| District | Dhemaji |
| State | Assam |
| Telephone No. | 03758-222244 |
| Office Name | Jonai B.O |
| Pincodes | 283124 |
| Area | Jonai |
| Office Status | Branch Post Office |
| Postal Circle | Uttar Pradesh |
| Postal Division | Agra |
| Postal Region | Agra |
| District | Agra |
| State | Uttar Pradesh |
| Telephone No. | Na |