Can i use viber after changing sim card?

Your number was blocked on Viber because it was reported as a source of spam or as a result of unusual activity. The account has been automatically added to a block list and can not be unblocked.  

... if you aren't using that SIM card. However, if you have your ... phone, when you install again Viber, all the contacts will automatically ... appear in your Viber contacts too. You can send ...