Hello Dais15
I'm sorry, but I cannot verify the legitimacy of a phone number. However, Microsoft will not send unsolicited e-mail or make unsolicited phone calls to request personal or financial information or provide technical support to repair your computer. If you do not ask us to do so, we will not call you for support.
If you didn't apply for Microsoft support, then this could be a scam. You should be very careful to avoid giving any personal information to the caller.
Please refer to this article to protect yourself from technical support scams: Protect yourself from tech support scams - Microsoft Support [3f0a-9651-7a9-63f4]
Best Regards,
Hania Lian