WhatsApp Messenger is a freeware and cross-platform messaging and Voice over IP service owned by Facebook. is a prerequisite to use a phone number in order to register and access its great features. with anonymity in mind using this account without a phone number is explained below  

  1. First of all, Save your complete WhatsApp data to your phone and uninstall the existing WhatsApp account.
  2. Now, switch your phone to Airplane Mode then Download and Install new WhatsApp on your phone.
  3. After that, go with on-screen instructions and put your phone number there, it will not send the message as your phone is on flight mode.
  4. Now, it will ask you to select an alternative method to select for verification of your number. Then you need to select Check Through SMS.
  5. Afterwards, enter your email address and Click on Submit button. Then immediately click on Cancel button.
  6. Now you need to install spoof messages apps for your device. If you have iPhone then install Fake-A-Message and if you have Android phone then install Spoof Text Message.
  7. After that, go to Outbox and send the detail to spoofed verifications. Use these details for that; To:+447900347295From: Country Code, Mobile Number and Message: Your Email ID.
  8. Now, these details will be sent to that false number and you may use that number for the verification of your WhatsApp account.
  9. Done!

with the above, you will use whats without any phone number which guarantees 100% anonymity online. Dont hesitate to comment your challenges  and views