There are 12 post offices under PIN code 133001.
| Post Office | Office Type | Delivery Status | Taluk | District | Division | Region | State | Circle | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | A.K. Line S.O | Sub Office | Non-Delivery | Na | Ambala | Ambala | Ambala Hq | Haryana | Haryana |
| 2 | Ambala G.P.O. | Head Office | Delivery | Na | Ambala | Ambala | Ambala Hq | Haryana | Haryana |
| 3 | Commissioner Court S.O | Sub Office | Non-Delivery | Ambala | Ambala | Ambala | Ambala Hq | Haryana | Haryana |
| 4 | Gobind Nagar S.O | Sub Office | Non-Delivery | Ambala | Ambala | Ambala | Ambala Hq | Haryana | Haryana |
| 5 | Hargolal S.O | Sub Office | Non-Delivery | Ambala | Ambala | Ambala | Ambala Hq | Haryana | Haryana |
| 6 | Kacha Bazar S.O | Sub Office | Non-Delivery | Ambala | Ambala | Ambala | Ambala Hq | Haryana | Haryana |
| 7 | Kharga Canteen S.O | Sub Office | Non-Delivery | Ambala | Ambala | Ambala | Ambala Hq | Haryana | Haryana |
| 8 | Mahesh Nagar S.O | Sub Office | Non-Delivery | Ambala | Ambala | Ambala | Ambala Hq | Haryana | Haryana |
| 9 | Palam Vihar S.O (Ambala) | Sub Office | Non-Delivery | Ambala | Ambala | Ambala | Ambala Hq | Haryana | Haryana |
| 10 | Punjabi Mohalla S.O | Sub Office | Non-Delivery | Ambala | Ambala | Ambala | Ambala Hq | Haryana | Haryana |
| 11 | Sadar Bazar S.O (Ambala) | Sub Office | Non-Delivery | Ambala | Ambala | Ambala | Ambala Hq | Haryana | Haryana |
| 12 | Top Khana Bazar S.O | Sub Office | Non-Delivery | Ambala | Ambala | Ambala | Ambala Hq | Haryana | Haryana |