Pincode 623403 is a 6-digit postal code serving 4 post offices in Ramanathapuram district, Tamil Nadu. Nambuthalai SO is the Post Office for this area, located at 9.7279°N, 79.0067°E. The first digit ‘6’ identifies the Tamil Nadu postal region; the full code pinpoints the Ramanathapuram delivery zone.
| Post Office | Type |
|---|---|
| Nambuthalai SO | Post Office |
| Karankadu BO | Branch Post Office |
| Muhilthagam BO | Branch Post Office |
| Pudupattinam BO | Branch Post Office |
Data sourced from India Post, Department of Posts, Government of India. Data last verified: May 2026.
Ramanathapuram, Tamil Nadu. Map data: OpenStreetMap, CARTO.