[Android Central Question]

how do I remove plus one in the area code from my Android phone I've lost all names to my contacts

[ManiacJoe]

We need a much more detailed description of the problem you are having.
Plus:
Which phone?
Which version of android?
Which carrier?

[A Bochur]

not sure what you mean, but if the problem if that your contacts have a +1 before their phone number and you want to remove multiple of those at once, try an app called number fixer it helps change and remove area codes