| Area Code: 306 | ||||
|---|---|---|---|---|
| SL No. | City | State | Country | Postal Code |
| 1881 | Estevan | Saskatchewan | Canada | S4A 2W6 |
| 1882 | Estevan | Saskatchewan | Canada | S4A 2W7 |
| 1883 | Estevan | Saskatchewan | Canada | S4A 2W8 |
| 1884 | Estevan | Saskatchewan | Canada | S4A 2W9 |
| 1885 | Estevan | Saskatchewan | Canada | S4A 2X1 |
| 1886 | Estevan | Saskatchewan | Canada | S4A 2X2 |
| 1887 | Estevan | Saskatchewan | Canada | S4A 2X3 |
| 1888 | Estevan | Saskatchewan | Canada | S4A 2X4 |
| 1889 | Estevan | Saskatchewan | Canada | S4A 2X5 |
| 1890 | Weyburn | Saskatchewan | Canada | S4H 0A1 |