In Ramanathapuram district, Tamil Nadu, PIN code 623603 is anchored by Kombuthi KMU BO, a Branch Post Office. Mail addressed to this code is sorted through the Southern Postal Region, across 12 listed offices.
| Post office | Type | Full name |
|---|---|---|
| Kombuthi KMU BO | BO | Branch Post Office |
| Mustakurichi BO | BO | Branch Post Office |
| Pudukottai BO | BO | Branch Post Office |
| Kilamudimannarkottai BO | BO | Branch Post Office |
| Kovilangulam BO | BO | Branch Post Office |
| Neeravikarisalkulam BO | BO | Branch Post Office |
| Perumalthevanpatti BO | BO | Branch Post Office |
| Ramasamypatti BO | BO | Branch Post Office |
| Kavadipatti BO | BO | Branch Post Office |
| Kilaramanithi BO | BO | Branch Post Office |
| Nerinchipatti BO | BO | Branch Post Office |
| Kamudi SO | SO | Sub Post Office |
