WhatsApp is letting users reserve a unique username so they can be found and message without ever sharing their phone number, as the Meta owned app pushes further into identity based contact rather than number based contact.
Usernames must be between 3 and 35 characters, and there is no directory or search suggestions to browse. Anyone wanting to reach someone by username needs to already know the exact name. Users can set theirs up now by going to Settings, then Account, then Username in the latest version of the app. Businesses are also able to claim matching usernames across WhatsApp, Instagram and Facebook.
An optional lock on first contact
Alongside the username itself, WhatsApp is introducing an optional "username key," a code that a stranger must know before they can send someone an initial message. The feature is aimed at giving users more control over who can reach them for the first time, without requiring them to change their number or block contact altogether.
Solving scarcity at scale
The push is partly about privacy, letting people keep their phone number private in first time conversations, and partly about preventing impersonation, with names reserved in advance for public figures and government organisations. It is also a practical response to scale. With more than 3 billion users on the platform, unique handles are becoming harder to come by.
WhatsApp said usernames are its "latest step to make WhatsApp even more private," with "no directory to browse." An early reservation period is underway now, with a full global rollout expected later in 2026 and a gradual, country by country notification schedule over the coming months.
