This browser is no longer supported.
Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support.
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(182.40000000000003, 99%, 27%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ESV%3C/text%3E%3C/svg%3E)
My coworker asked me why my number is showing on her phone as the number calling her for her code every day. It seems Microsoft is spoofing my number to call out. I am getting dozens of return calls every day and my coworker is confused every time she uses MFA and I come up as contact to call her with her code.
There's a setting within the Azure AD blade that allows you to specify the CallerID, so check for that:
https://portal.azure.com/#blade/Microsoft_AAD_IAM/MultifactorAuthenticationMenuBlade/PhoneCallSettings/fromProviders/
looks like I don't have access to any of that. still strange Microsoft uses my number as outgoing number to call with, giving other people their codes on their own phones. can't they just use their own number for that?
I'll contact my senior system admin to see if they can have a look, thank you for your reply.