Update from the official WhatsApp portal clearly reveals that there is no option for creating a WhatsApp account with two phone numbers. WhatsApp account can be verifies with only one number for one device. In the cases of dual sim also WhatsApp can verify one of the numbers only and no such possibility of the activation of same account for two numbers.
WhatsApp blocks the verification of the account if one keeps on changing the device for the same account. Repeatedly switching different devices and numbers for the account cannot be verified for the same number of times owing to the misuse of the accounts for illegal activities under the WhatsApp terms and conditions.
Though the messaging platform was widely used throughout the world as a means of digital communication the Facebook owned company never allows multiple switching of devices or single account access with two number for security regulations. WhatsApp has become an integral part of communication for personal and professional transferring of files and messages that has totally replaced the conventional SMS format.
The high security feature helps not only the user but also the company to safeguard the privacy and maintain crime free environment. Going along the way of WhatsApp to maintain single account for single number and not to switch devices often are the best ways to enjoy the biggest communication platform of the world.