You are free to block phone numbers at any time, and you will find out that you can do this pretty easily so that you do not have to deal with that unknown phone number again. Every system is a little different, and you must use the contacts pages and the phone log to make the changes that you need to make. You are welcome to use *69 or a phone number lookup service to find out who someone is, and you can block caller contacts that you do not want to hear from ever again.
Use The Phone Log
You can use the phone log any time you want, and you will find that it is much easier for you to have the results that you want because you can click on block caller from the phone log. Choose the information button for the phone number, and you will find a place where you can block the caller. There are certain Android phones that do not allow for this, and you must use the phone number lookup service to know who the number is, and you will call your carrier to ask them to block the number.
Use The Contacts Page
You can use your contacts page or app to block the number, and you will go into the contact to edit it. You can click to block caller, and you will have much more fun using the phone because you are not worried about getting these calls over and over again. You have to be sure that you ahve taken the time to block these numbers so that you will not get their calls again, and you will have more fun using your phone because you can control your contacts easily.
The Unknown Phone Number
Contact your carrier to make sure that you have blocked all numbers from unknown callers, and you will have the chance to have them keep your account safe. They can unblock those numbers at any time, and they will ask you if you ahve any other numbers you want to block.
You can block numbers any time you want, and you will find out how much easier it is for you to control who calls you. You can go in easily on your iPhone and Android phone to block the number, and you will have the privacy you need once again after all those unwanted calls.