WatsapGO
This Web App uses WhatsApp public api to open a chat with any number you enter. No need to create contact on the device.
Insert the number and the prefix with no extra characters, only numbers 0-9.
This app uses Ip geolocalisation to automatically select the country prefix. The user can manually select the profix by clicking on the prefix dropdown list and choose the prefered prefix.
In case the phone number was already copied, Click on The Magic Paste Button will easly insert the number and the prefix.