Vizhithiyur B.O is the primary post office registered under PIN code 609607 in Karaikal, Puducherry. This code sits within the Southern Postal Region, with 5 offices operating under it.
| Post office | Type | Full name |
|---|---|---|
| Vizhithiyur B.O | BO | Branch Post Office |
| Sellur B.O | BO | Branch Post Office |
| Karukkangudi B.O | BO | Branch Post Office |
| Surakudi B.O | BO | Branch Post Office |
| Tirunallar S.O | SO | Sub Post Office |
