In Tiruppur district, Tamil Nadu, PIN code 638657 is anchored by Ponnapuram BO, a Branch Post Office. Mail addressed to this code is sorted through the Southern Postal Region, across 14 listed offices.
| Post office | Type | Full name |
|---|---|---|
| Ponnapuram BO | BO | Branch Post Office |
| Alangiam BO | BO | Branch Post Office |
| Dasarapatti BO | BO | Branch Post Office |
| Gethelrev BO | BO | Branch Post Office |
| Nanjundapuram BO | BO | Branch Post Office |
| Chitravuthampalayam BO | BO | Branch Post Office |
| Thoppampatti BO | BO | Branch Post Office |
| Chinnakkampalayam BO | BO | Branch Post Office |
| Govindapuram BO | BO | Branch Post Office |
| Kullaipalayam BO | BO | Branch Post Office |
| Nanjiampalayam BO | BO | Branch Post Office |
| Chinnaputhur BO | BO | Branch Post Office |
| Kallivalasu BO | BO | Branch Post Office |
| Ellisnagar SO | SO | Sub Post Office |
