Tipping point

Can mobile numbers be retained if you change the service provider?

Yes. You can retain the same mobile number if you change the service provider. This is called mobile portability. It can be done by paying a nominal charge.

Can the number be retained even between cities and states?

Yes. Now, the government permits portability between cities and even states within the country. So, you can shift your mobile number to another state or city and a new service provider altogether.