PIN code 173220 belongs to Pratha BO (Branch Post Office), located in Solan district, Himachal Pradesh. It falls under the Northern Postal Region and is served by 6 post offices in total.
| Post office | Type | Full name |
|---|---|---|
| Pratha BO | BO | Branch Post Office |
| Parwanoo SO | SO | Sub Post Office |
| Taksal BO | BO | Branch Post Office |
| Sector2 Parwanoo SO | SO | Sub Post Office |
| Masulkhana BO | BO | Branch Post Office |
| Nayagram BO | BO | Branch Post Office |
