why is a phone number red in my contacts android

why is a phone number red in my contacts android

why is a phone number red in my contacts android. There are any references about why is a phone number red in my contacts android in here. you can look below.

Click here to get more information about why is a phone number red in my contacts android if you're in U.S.

Click here to get more information about why is a phone number red in my contacts android if you're in U.K.