In Ernakulam district, Kerala, PIN code 686669 is anchored by Mazhuvannoor BO, a Branch Post Office. Mail addressed to this code is sorted through the Southern Postal Region, across 4 listed offices.
| Post office | Type | Full name |
|---|---|---|
| Mazhuvannoor BO | BO | Branch Post Office |
| Nellad BO | BO | Branch Post Office |
| Mazhuvannoor South BO | BO | Branch Post Office |
| Mudavoor SO | SO | Sub Post Office |
