| Office Name | Kallambalam S.O |
| Pincodes | 695605 |
| Area | Kallambalam |
| Office Status | Sub Post Office |
| Postal Circle | Kerala |
| Postal Division | Trivandrum North |
| Postal Region | Trivandrum Hq |
| District | Thiruvananthapuram |
| State | Kerala |
| Telephone No. | 0470-2692099 |
| Office Name | Karavaram B.O |
| Pincodes | 695605 |
| Area | Karavaram |
| Office Status | Branch Post Office |
| Postal Circle | Kerala |
| Postal Division | Trivandrum North |
| Postal Region | Trivandrum Hq |
| District | Thiruvananthapuram |
| State | Kerala |
| Telephone No. | Na |
| Office Name | Puthusserimukku B.O |
| Pincodes | 695605 |
| Area | Puthusserimukku |
| Office Status | Branch Post Office |
| Postal Circle | Kerala |
| Postal Division | Trivandrum North |
| Postal Region | Trivandrum Hq |
| District | Thiruvananthapuram |
| State | Kerala |
| Telephone No. | Na |
| Office Name | Thottakkad B.O |
| Pincodes | 695605 |
| Area | Thottakkad |
| Office Status | Branch Post Office |
| Postal Circle | Kerala |
| Postal Division | Trivandrum North |
| Postal Region | Trivandrum Hq |
| District | Thiruvananthapuram |
| State | Kerala |
| Telephone No. | Na |