Gansu
Facilities and Services
| City | Area Code | Zip Code |
| Baiyin | 943 | 730900 |
| Dingxi | 932 | 743000 |
| Gan'nan | 941 | 747000 |
| Jiayuguan | 937 | 735100 |
| Jinchang | 935 | 737100 |
| Jiuquan | 937 | 735000 |
| Lanzhou* | 931 | 730000 |
| Linxia | 930 | 731100 |
| Longnan | 935 | 742500 |
| Pingliang | 933 | 744000 |
| Qingyang | 934 | 745000 |
| Tianshui | 938 | 741000 |
| Wuwei | 935 | 733000 |
| Zhangye | 936 | 734000 |
A list of Area Dialing and ZIP codes for major cities in Gansu.