callsorputs said

Thanks Wesley! The correct phone number is (205) 370-9450 and is located throughout the website. The phone number it changes to is (205) 216-5781 in it only does it when viewed in FF desktop, not mobile. If you view the same website in Edge, it doesn't change it. I'm not an edge fan at all, but I'm worried it may affect business. Website is: www.OneCallRoofing.com

I saw at posting and tried the link and got the 370 number not the one you asked and I am using firefox 64.0.2 and in the US when I tried the link.

I may have found the issue....

Turns out it was in the header, in a Google Tag Manager that one of the marketing companies wanted me to embed in the Header... Removed it and the correct phone number shows.... Weird

But why wouldn't that have the same result on another computer?

That does sound very strange. Glad that everything works for you now though.

Thanks again for your help, I really appreciate your time...

Google Tag Manager might do different things for different people (or should I say, different "anonymous profiles"). I block it.