There are 4 post offices under PIN code 639103.
| Post Office | Office Type | Delivery Status | Taluk | District | Division | Region | State | Circle | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Ettarai B.O | Branch Office | Delivery | Srirangam | Tiruchirappalli | Tiruchirapalli | Tiruchy | Tamil Nadu | Tamilnadu |
| 2 | Inampuliyur B.O | Branch Office | Delivery | Srirangam | Tiruchirappalli | Tiruchirapalli | Tiruchy | Tamil Nadu | Tamilnadu |
| 3 | Koppu B.O | Branch Office | Delivery | Srirangam | Tiruchirappalli | Tiruchirapalli | Tiruchy | Tamil Nadu | Tamilnadu |
| 4 | Kulumani S.O | Sub Office | Delivery | Tiruchirappalli | Tiruchirappalli | Tiruchirapalli | Tiruchy | Tamil Nadu | Tamilnadu |