PIN code 600056 – Thiruvallur, Tamil Nadu
600056 is the PIN code of 4 post offices in Thiruvallur district, Tamil Nadu, served by the Iyyappanthangal S.O sub office.
| Post office | Type | Delivery | Division |
|---|---|---|---|
| Iyyappanthangal S.OMap | Post office | No | Tambaram Division |
| Poonamallee SOMap | Post office | Yes | Tambaram Division |
| Kattupakkam BOMap | Branch office | No | Tambaram Division |
| Senneerkuppam BOMap | Branch office | No | Tambaram Division |
Source: India Post PIN code directory (Open Government Data). Branch offices usually get mail through their sub or head office.