Losing track of your own phone number is disconcerting. It’s also something that happens frequently enough. Human memory is imperfect anyway. Making it an issue for just about everybody at some point.

Nida is a tech and telecom journalist with more than five years of writing experience. She graduated from the University of Toronto with a BA in journalism. Your phone number is likely an essential ...

Looking at the back of your phone should normally give you the manufacturer name or logo and sometimes it will also state the phone's model, but it usually won't have the full model number. There are ...