How does China Mobile open one in two cities in Nanjing?

The opening mode of "two cities and one family" in the province: edit the SMS instruction and send it to 10086.

Nanjing roaming opened (sending KTSNLCNJ) and cancelled (sending QXSNLCNJ)

Suzhou roaming is opened (sending KTSNLCSZ) and cancelled (sending QXSNLCSZ)

Wuxi roaming starts (sending KTSNLCWX) and cancels (sending QXSNLCWX)

Changzhou roaming is opened (sending KTSNLCCZ) and cancelled (sending QXSNLCCZ)

Nantong roaming enabled (sending KTSNLCNT) cancelled (sending QXSNLCNT)

Zhenjiang roaming is opened (sending KTSNLCZJ) and cancelled (sending QXSNLCZJ)

Yangzhou roaming is opened (sending KTSNLCYZ) and cancelled (sending QXSNLCYZ)

Taizhou roaming is opened (sending KTSNLCTZ) and cancelled (sending QXSNLCTZ)

Xuzhou roaming is opened (sending KTSNLCXZ) and cancelled (sending QXSNLCXZ)

Yancheng roaming is opened (sending KTSNLCYZ) and cancelled (sending QXSNLCYC)

Huai 'an Roaming Enable (Sending KTSNLCHA) and Cancel (Sending QXSNLCHA)

Lianyungang roaming is opened (sending KTSNLCLYG) and cancelled (sending QXSNLCLYG)

Suqian roaming start (sending KTSNLCSQ) and cancel (sending QXSNLCSQ)

That depends on where you are. You can send it anywhere. Just refer to the above. Hee hee, it's as simple as that.