Kallakudi North SO is the primary post office registered under PIN code 621652 in Tiruchirappalli, Tamil Nadu. This code sits within the Southern Postal Region, with 4 offices operating under it.
| Post office | Type | Full name |
|---|---|---|
| Kallakudi North SO | SO | Sub Post Office |
| Malvoy BO | BO | Branch Post Office |
| Malvoy Kannanur BO | BO | Branch Post Office |
| Melarasur BO | BO | Branch Post Office |
