[RayChuang88]

Except for one thing: many Chinese migrant worker carries cellphones with multiple numbers (that's why dual-SIM cellphones are popular in that country). 21 million numbers gone mean 21 million numbers deactivated because they were no being used by migrant workers.

[SmokingJoe]

Good point. I have a dual sim card cell phone, plus another single sim cell phone, making 3 numbers altogether, but just two physical phones.