This allows you to use the same phone number over and over to create multiple accounts. Fortunately it is possible to get around this restriction without too much trouble, which is what we will go through in this article.īefore proceeding, it is worth noting that the easiest and most reliable way to create a Microsoft account without a phone number is to add a phone number then remove it after creating the account. It also unfairly restricts users on shared Internet connections, like those in university dorms, large offices, hotels, serviced apartments etc. This is very restrictive, because there are legitimate reasons why a person might need to create multiple Microsoft accounts at once, such as if they are providing IT services to a number of users. If Microsoft’s system thinks the same person is trying to create more than one account within a short period of time they’ll be flagged as suspicious and thus a unique mobile number will be required for each additional account. Why is this? Well, from my testing as of late 2018 it seems Microsoft uses both your previous browsing data and public IP address to determine whether you are abusing their services or not. If you go to to create a Microsoft account you might not have to enter a phone number, however other times you will have to enter and verify a phone number in order to create the account.