| Office Name | Arinallur S.O |
| Pincodes | 690538 |
| Area | Arinallur |
| Office Status | Sub Post Office |
| Postal Circle | Kerala |
| Postal Division | Quilon |
| Postal Region | Trivandrum Hq |
| District | Kollam |
| State | Kerala |
| Telephone No. | 03476-2872064 |
| Office Name | Arinallur South B.O |
| Pincodes | 690538 |
| Area | Arinallur South |
| Office Status | Branch Post Office |
| Postal Circle | Kerala |
| Postal Division | Quilon |
| Postal Region | Trivandrum Hq |
| District | Kollam |
| State | Kerala |
| Telephone No. | Na |
| Office Name | Perungalam B.O |
| Pincodes | 690538 |
| Area | Perungalam |
| Office Status | Branch Post Office |
| Postal Circle | Kerala |
| Postal Division | Quilon |
| Postal Region | Trivandrum Hq |
| District | Kollam |
| State | Kerala |
| Telephone No. | Na |