| Place | Postal Code |
|---|---|
| Amsakali Road, Attur | 636108 |
| Anaimedu, Attur | 636101, 636121, 636108 |
| Anbu Nagar, Attur | 636112 |
| Andavar Nagar, Attur | 636121, 636112, 636117 |
| Anjali Nursery School, Attur | 636108 |
| Anna Nagar, Attur | 636101, 636107, 636112, 636114, 636117, 636121, 636141 |
| Anna Salai, Attur | 636121 |
| Annanthanagar, Attur | 636104 |
| Appamasamudram, Attur | 636108 |
| Aragalur, Attur | 636101 |
| Arasamarathu Street, Attur | 636141 |
| Arasanatham, Attur | 636107 |
| Arathi Agraharam, Attur | 636112 |
| Arikadu Opp, Attur | 636108 |
| Ariyampalayam, Attur | 636119 |
| Arumugaiyyar Nagar, Attur | 636112 |
| Aruna Rf, Attur | 636138 |
| Arunthathiar Colony, Attur | 636141 |
| Arunthathiyar Colony, Attur | 636141 |
| Arunthathiyur Colony, Attur | 636108 |
| Asumbukadu, Attur | 636138 |
| Athuvalaivu, Attur | 636138 |
| Attavanai Kothambadi, Attur | 636109 |
| Atur, Attur | 636101, 636102, 636108, 636109, 636117, 636121, 636141, 636142 |
| Avarai, Attur | 636138 |
| Ayarpadi, Attur | 636121 |