Gansu

• The entire Anxi-Jiuquan region should have been changed to 937 in 1998.
  There should be no 4-digit codes now, at least in northwest Gansu.
  Besides, all cities/counties now have 7-digit local numbers. Your help
  in indentifying specific changes are greatly appreciated.
  

930	Linxia
930	Linxia county (was 9401)
930	Yongjing (was 9402)
930	Hezheng (was 9403)
930	Dongxiang (was 9404)
930	Guanghe (was 9406)
930	Jishishan (was 9407)
930	Kangle
931	Lanzhou
931	Yongdengxian (was 9460)
931	Yuzhong (was 9440)
931	Gaolan
931	Honggu Qu
932	Dingxi
932	Longxi (was 9421)
932	Lintao (was 9425)
932	Weiyuan (was 9426)
932	Tongwei
932	Zhangxian
932	Minxian
933	Pingliang
933	Jingning (was 9431)
933	Jingchuan (was 9432)
933	Chongxin (was 9434)
933	Huating (was 9435)
933	Lingtai
933	Zhuanglang
934	Qingyang
934	Xifeng
934	Ningxian (was 9442)
934	Heshui (was 9445)
934	Huachi (was 9447)
934	Huanxian
934	Zhenyuan
934	Zhengning
935	Wuwei
935	Jinchang (was 9455)
935	Minqin (was 9451)
935	Tianzhu (was 9452)
935	Gulang (was 9453)
935	Yongchang
936	Zhangye
936	Shandan (was 9461)
936	Gaotai (was 9462)
936	Minle (was 9464)
936	Linze (was 9465)
936	Sunan
937	Jiuquan
937	Jiayuguan (was 9477)
937	Dunhuang (was 9473)
937	Anxi (was 9472)
937	Yumen (was 9471)
937	Aksay
937	Jinta
937	Subei
938	Tianshui
938	Qin'an
938	Zhangjiachuan (was 9483)
938	Qingshui (was 9484)
938	Gangu
939	Wudu
939	Chengxian (was 9491)
939	Kangxian (was 9492)
939	Dangchang (was 9494)
939	Xihe (was 9495)
939	Huixian (was 9497)
939	Lixian
939	Liangdang
939	Wenxian
939	Dangxian
941	Gannanzhou (was 9412)
941	Xiahe (was 9412)
941	Zhouqu (was 9414)
941	Diedu
941	Lintan
941	Luqu
941	Maqu
941	Zhuoni
943	Baiyin (was 9430)
943	Jingyuan (was 9467)
943	Jingtai (was 9468)
943	Huining (was 9469)
943	Pingchuan