Select a number, right click it and click on our extension and it will open a Whatsapp tab to talk to that number without having to add it. Note: if the number is national, just select it (the phone code will be automatic), if its international, select it with the + and the code.
Done using Jquery, basic javascript and a simple query to http://ipinfo.io/# Tap-Tap-Whatsapp
You can download it at: https://chrome.google.com/webstore/detail/tap-tap-whatsapp/ajjonloiapfbpliippbilicghhhppipc?hl=en&authuser=0