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688003 PINCode is located in Alleppey district
| Post Offices with the same pin code as Sanathanapuram | |||
| No. | Post Office | District | Pincode |
| 1 | Vadackal | Alleppey | 688003 |
| 2 | Kaithavana | Alleppey | 688003 |
| 3 | Kalarcode | Alleppey | 688003 |