Oonnakavu is located in the district of Pathanamthitta, Kerala. The pincode of Oonnakavu is 689674. The area "Oonnakavu" lies under takula of Ranni and has a Branch Office. Oonnakavu comes under the head office Pathanamthitta. The postal division for pin code 689674 is Pathanamthitta.
| Area | Oonnakavu |
| Pincode | 689674 |
| Taluka or Tehsil | Ranni |
| District | Pathanamthitta |
| State | Kerala |
| Office Status | Branch Office |
| Postal Division | Pathanamthitta |
| Postal Region | Trivandrum HQ |
| Sub Office | Angadi (Pathanamthitta) |
| Head Office | Pathanamthitta |
| Contact Address | Postmaster, Post Office Oonnakavu (Branch Office), Ranni, Kerala, India, Pin Code: 689674 |
| Pin code | Area | District | Taluka | Postal Status |
|---|---|---|---|---|
| 689674 | Angadi Pathanamthitta pin code | Pathanamthitta | Ranny | Sub Office |
| 689674 | Nellikkamon pin code | Pathanamthitta | Ranni | Branch Office |
| 689674 | Oonnakavu pin code | Pathanamthitta | Ranni | Branch Office |
| 689674 | Pulloopram pin code | Pathanamthitta | Ranni | Branch Office |
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