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686668 PINCode is located in Ernakulam district
| Post Offices with the same pin code as Thazhvankunnam | |||
| No. | Post Office | District | Pincode |
| 1 | Ayavana | Ernakulam | 686668 |
| 2 | Kalloorkkad | Ernakulam | 686668 |
| 3 | Kavakkad | Ernakulam | 686668 |
| 4 | Nagapuzha | Ernakulam | 686668 |