If you've ever felt uneasy handing your phone number to someone you've just met, WhatsApp is finally addressing that. The Meta-owned app, used by more than three billion people worldwide, has begun rolling out usernames — meaning you'll soon be able to chat with people without ever revealing your mobile number.
What's Actually Changing
Until now, the only way for someone to message you on WhatsApp was to have your phone number. That's changing. Users can already reserve a unique username by heading to Settings, then Account, then Username in the latest version of the app. Once the wider rollout lands over the coming months, you'll be able to choose to be found and contacted only by that username — not your number at all.
Usernames need to be between three and 35 characters, must include at least one letter, and can only use lowercase letters, numbers, full stops and underscores. To stop impersonation, WhatsApp is holding back certain names for well-known public figures and organisations.
Built With Privacy in Mind
Unlike Instagram or X, there's no searchable directory of WhatsApp usernames, and the app won't suggest names as you type. WhatsApp's VP of product, Alice Newton-Rex, put it simply: "people will need to know your exact username to contact you for the first time." An optional extra "username key" is also being introduced, giving you a further layer of control over who can message you before you've spoken to them.
Why It Matters for Families
For parents, this is a meaningful safety upgrade. Phone numbers are permanent and tied to a lot of personal information, so being able to let a child, teenager, or anyone else communicate through a throwaway-style username rather than their real mobile number closes off a common route for unwanted contact or number-harvesting. It's also worth teaching kids that a username still needs to be shared carefully — it works like a key, and anyone who has it can start a conversation.
Why It Matters for Small Businesses
If you use WhatsApp to talk to customers, this is worth planning for. Businesses, organisations and creators who already have an Instagram or Facebook account will get the option to claim the same handle on WhatsApp, making it easier to build a consistent, recognisable brand instead of asking customers to save a mobile number. It also means you can advertise a memorable business handle rather than a phone number on business cards, invoices, or your website — while keeping your actual number private.
There's no fixed date yet for when usernames go live in the UK — WhatsApp says only that it will notify users in-app once the feature reaches their country. In the meantime, it's worth reserving your preferred username now, before someone else does.
