1 First thing is first, Uninstall your WhatsApp from your smartphone.
And then download WhatsApp again from play store [This one is the important step in this Guide WhatsApp without number trick]
Now, Disable your messaging services means you can enable Flight Mode.
Open your WhatsApp application and type your number. Then Whatsapp will not be able to send messages to the server just because you enabled your flight mode.
Here we come to the main part. So, Whatsapp will ask you to verify your number with alternative methods.
Then Choose Check through SMS and then type your email address there.
Touch on send button and quickly touch on the cancel button. [This step is required to stop the process of sending]
Here is the Important step of this Whatsapp trick started. Install spoof messages app in your smartphone.
You can search it on Google play store. If you are an iPhone user then install Fake-A-Message.
Then go to outbox and the copy the message details from Spoofer application and send it to spoofed verifications that are false verification.
You can use details in the spoofed message: to +447987657543 from +[country Code] [mobile number] Message: Your Email Address.
Then a message will be sent to that spoofed number and you can able to use this number in Whatsapp and you can able to surprise your friends with this Whatsapp without number tricks.
NOTE: If above spoof text message is not working then you can use other apps. Just search on your play store or App store.