International Airport S.O is the primary post office registered under PIN code 400099 in Mumbai Suburban, Maharashtra. This code sits within the Western Postal Region, with 3 offices operating under it.
| Post office | Type | Full name |
|---|---|---|
| International Airport S.O | SO | Sub Post Office |
| Airport S.O (Mumbai) | OTHER | post office |
| Sahar P and T Colony S.O | SO | Sub Post Office |
