Ammaneri B.O is the primary post office registered under PIN code 631303 in Thiruvallur, Tamil Nadu. This code sits within the Southern Postal Region, with 4 offices operating under it.
| Post office | Type | Full name |
|---|---|---|
| Ammaneri B.O | BO | Branch Post Office |
| Veeranathur B.O | BO | Branch Post Office |
| Adivaragapuram B.O | BO | Branch Post Office |
| Ramakrishnarajupeta S.O | SO | Sub Post Office |
