PIN code 689643 belongs to Elanthur East BO (Branch Post Office), located in Pathanamthitta district, Kerala. It falls under the Southern Postal Region and is served by 7 post offices in total.
| Post office | Type | Full name |
|---|---|---|
| Elanthur East BO | BO | Branch Post Office |
| Elanthur Pariyaram BO | BO | Branch Post Office |
| Karamvely BO | BO | Branch Post Office |
| Nellikala BO | BO | Branch Post Office |
| Elanthur SO | SO | Sub Post Office |
| Edapariyaram BO | BO | Branch Post Office |
| Prakkanam BO | BO | Branch Post Office |
