How to auto-populate phone area code from zip code

Dear Sir,

Thanks for your quick response. please find the attached image of my question.

Thank you

Kind Regards

Hirantha

Unfortunately, it is not possible to auto-populate phone area code when someone fills in zip code. 

But there are some widgets that may meet your need. 

1- The first widget that i can suggest you is Country Code Widget. 

When your submitters select their country, area phone code box shows up automatically like below.

2- Another widget you can benefit from is International Telephone Picker.

Your submitters can pick their country from a dropdown menu with phone area code. 

All they have to do is just to enter their phone number after country selection. Phone area code automatically will be there.

3- Another widget you can use is Postal Code Search.

In this feature, after your users select their country and enter their zip code, the district they live in automatically shows up.

I hope these features meet your needs. 

If you need further help, feel free to turn back us.

Thanks.