PIN code 670521 belongs to Kozhummal BO (Branch Post Office), located in Kannur district, Kerala. It falls under the Southern Postal Region and is served by 4 post offices in total.
| Post office | Type | Full name |
|---|---|---|
| Kozhummal BO | BO | Branch Post Office |
| Ettukudukka BO | BO | Branch Post Office |
| Karivellur SO | SO | Sub Post Office |
| Kuniyan BO | BO | Branch Post Office |
