| Sub-districts |
|---|
| Chavakkad, Thrissur |
| Kodungallur, Thrissur |
| Mukundapuram, Thrissur |
| Talappilly, Thrissur |
| Thrissur, Thrissur |
| All postal codes in Kerala |
|---|
| Alappuzha |
| Ernakulam |
| Idukki |
| Kannur |
| Kasaragod |
| Kollam |
| Kottayam |
| Kozhikode |
| Malappuram |
| Palakkad |
| Pathanamthitta |
| Thiruvananthapuram |
| Thrissur |
| Wayanad |