How often should you change your phone number?

Question

Telecom operators

Good day.
The story is as follows - for a long time I own the phone number of operator N. The number is the only one - lately a lot of calls have been coming to it: spam, advertising, banks, all sorts of offers, and so on. I suspect that the base in which the number appeared several times leaked to the Internet (because it is also present in cold sales). Yes, it was used during registrations, yes, often I did not read the policy for the use and processing of personal data.

Actually, what to do with it now? Just a number change? Are there any tips on choosing a SIM card (in order to get a number without history, which has not yet been rented by anyone?). Or is it worth taking drastic measures and buying SIM cards in transition + disposable phones? How many numbers should a normal person have? How to properly organize and use it?
Thanks in advance for your answers.

Answer 1

• If possible, refuse to receive calls from customers (unknown numbers) on your personal number.
  
• Ideally, accept calls only from those who are in your contacts. An exception is couriers (you cannot take a number from them in advance).
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• If you still want to answer an unknown number, then do not immediately answer with your voice. Shut up. Have the caller say "hello" first.
  
• You can also ignore an unknown number, and then type it into Google and see what they write about it. And if it turns out that they called from your clinic, then you can call back yourself.
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• There are already special applications for smartphones that highlight whether a number is in spam databases.
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Answer 2

Normal people never change their numbers at all, they sit for 20 years with one number. If you want a new number, ask the operator if he was behind someone.

Answer 3

Now many operators offer the service of blocking spam calls for little money.
There is an application from Kaspersky #whocalls, which also blocks spam, there is a free use case.

Answer 4

The people on your contact list are used to your number, so changing it is the last resort when all else fails. Much of what is bothering you can be turned off by contacting your CC operator. You just need to handle it harshly, without hiding that you have been brought to the withdrawal of your number to another operator - then he will react. In addition, many operators have some secrets on this subject. Use what is described here in this article , and the flow of bullshit to your phone will become even less.
Well, the rest can be fought manually. Sending to ignore (black list) is just a couple of taps. Do this with all the rest, and gradually the trickle of bullshit will dry up completely.
Well, a few answers to specific questions. Buying a SIM card from hucksters is again an extreme case, it can be done, but not at all necessary. And about how many numbers someone has - I personally have two, and with different operators. One is publicly available for incoming calls, all my contacts know it, the other is the cheapest tariff from the cheapest operator, for outgoing calls.