【天津市】
Tianjin municipality
Note
Now all counties of Tianjin has the code 22.
Jianjin local phone number changed to 8 digits on March 8, 1997. The rule is xxx-xxxx to 2xxx-xxxx. There was no change for 200, 800, mobile (cellular) and special numbers.
东大沽
22
Dongdagu (was 2277)
蓟县
22
Jixian (was 2291)
宝坻
22
Baodi (was 2292)
武清
22
Wuqing (was 2293)
静海
22
Jinghai (was 2294)
宁河
22
Ninghe (was 2295)
汉沽
22
Hangu (was 2296)
新港
22
Xingang (was 2297)
塘沽
22
Tanggu (was 337?)
北大港
22
Beidagang (was 2299)