How to change registered mobile number in tata sky online? This question often comes in front of us when we change our phone numbers. How to update new phone number in our tata sky online? The answer will be provided to you here. Registered mobile number for tata sky can be changed by calling the tata sky customer care number. You need to make a phone call to the toll-free tata sky number. The customer care representative will ask you the tata sky ID number of your tata sky set top box. Once, you tell them the tata sky id and digicard number they will ask you for the new registered mobile number. You tell them your new mobile number that you want them to add as rmn of tata sky services. Another way of getting the tata sky mobile number changed is by opening the tata sky official website and ask them on email and chat services for mobile number change. The last method is that you go to any tata sky retailer in your market and ask him to put up a request for you in tata sky company. By following any of these three ways, you can get your tata sky registered mobile number changed online. I hope you have got the answer for your question, "How to change registered mobile number in tata sky online".