Area Code +86-21-(00000000...99999999) located in Shanghai, Shanghai (31), more detail is as below. Place International Dialing Code : 86 International Prefix : 00 National Prefix : 0 National Destination Code : 21 Subscriber Number From : 00000000 Subscriber Number To : 99999999 National Destination Code Length : 2 Uses National Destination Code : Yes National Significant Number Length : 10 Number Type : G (Geographic Land Line, Fixed Line) Carrier Name : China Telecom Click here to buy China Area Code DatabaseClick here to buy China Mobile Numbers Other Information Language Code : zh (Chinese) Country Number : 156 (China) Country Code : CN (China) Region Code : 31 Region Name : Shanghai City : Shanghai Timezone : Asia/Shanghai Coordinated Universal Time : +08:00 Daylight Saving Time : No National Significant Number Minimum Length : 10 Latitude : 31.2300 Longitude : 121.4700 ‹ previous : +86-20-(00000000...99999999) next › : +86-22-(00000000...99999999) Dialling Instructions For trunk calls: 0 21 00000000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 86 21 00000000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 00000000 ~ 99999999 (Count: 100,000,000) Example: +86-21-00000000 / 0086-21-00000000 (021-00000000 / 0-21-00000000) +86-21-00000001 / 0086-21-00000001 (021-00000001 / 0-21-00000001) +86-21-00000002 / 0086-21-00000002 (021-00000002 / 0-21-00000002) +86-21-00000003 / 0086-21-00000003 (021-00000003 / 0-21-00000003) +86-21-00000004 / 0086-21-00000004 (021-00000004 / 0-21-00000004) ...+86-21-xxxxxxxx / 0086-21-xxxxxxxx (021-xxxxxxxx / 0-21-xxxxxxxx) ...+86-21-99999995 / 0086-21-99999995 (021-99999995 / 0-21-99999995) +86-21-99999996 / 0086-21-99999996 (021-99999996 / 0-21-99999996) +86-21-99999997 / 0086-21-99999997 (021-99999997 / 0-21-99999997) +86-21-99999998 / 0086-21-99999998 (021-99999998 / 0-21-99999998) +86-21-99999999 / 0086-21-99999999 (021-99999999 / 0-21-99999999)