WhatsApp has begun rolling out usernames, allowing its users to reserve a unique @handle and connect with new contacts without exposing their phone number. The move, announced by the Meta-owned platform on June 29, marks one of the most consequential identity changes in the app's history and brings the world's largest messaging service into line with rivals such as Telegram and Signal, which have offered username-based contact for years.

Reservations opened this week ahead of a phased global launch over the coming months. For India — WhatsApp's single largest market, with the platform woven into commerce, government services, and daily communication — the shift carries outsized significance. Indian beta testers were among the first to access the feature when limited trials began in April 2026.

From number to handle

Until now, a phone number was the only way to be found or reached on WhatsApp. The new system layers an optional identity on top of that infrastructure rather than replacing it. Once a user creates a handle, anyone who knows it can search for them and start a conversation while the phone number stays hidden. The number remains tied to the account for login, verification, and recovery — it simply stops being the information users must hand out to every new acquaintance, group, or community.

Existing contacts who already have a user's number will continue to see it. The feature is entirely optional; users who take no action can keep using the app exactly as before.

How to reserve a username

Users can claim a handle now by updating to the latest version of WhatsApp and navigating to Settings → Account → Username. If the option does not yet appear, the rollout has not reached that account, and WhatsApp will issue an in-app notification once usernames go live in a given country.

The format rules are strict, in part to curb impersonation and phishing:

• Between 3 and 35 characters
• Must contain at least one letter
• Only lowercase letters, numbers, periods, and underscores are permitted
• Cannot begin with "www." or end with domains such as ".com" or ".net"

A further constraint will catch many users: a WhatsApp username must be unclaimed across all Meta platforms simultaneously. Creators, small businesses, and organisations can carry over an existing Instagram or Facebook handle to maintain a consistent presence — but clean, common names are expected to disappear quickly once demand peaks, which is precisely why reservations have opened early.

Privacy by design

Unlike conventional social platforms, WhatsApp has built the feature on a zero-discovery model. There is no directory to browse and no algorithmic suggestions; a person must know a user's exact handle to make first contact. An optional second layer, the Username Key — a four-digit code shared alongside the handle — adds further control. Where it is enabled, even someone who knows the username must supply the key to begin a conversation, with messages from keyless senders routed to a separate Requests folder rather than the main inbox.

The security upside is particularly relevant in India and other high-risk regions, where phone numbers are tightly bound to banking, identity, and government systems. By reducing how often a number is shared, the feature narrows the attack surface for SIM-swap fraud and unsolicited contact.

One caveat for the privacy-conscious: reusing the same handle across WhatsApp, Instagram, and Facebook could make it easier for strangers to link a single identity across platforms. Users who value separation between profiles are advised to choose distinct handles.

What it means for businesses

For enterprises, the central change is the Business-Scoped User ID (BSUID), a new identifier surfacing in WhatsApp Business API webhooks. Companies must update their messaging logic, CRM systems, chatbots, and customer-support dashboards to handle the new field, with Meta's compliance window now arriving in mid-2026.

Importantly, adopting a business username does not hide a business's phone number — the handle functions as an additional, more brand-forward identifier rather than a replacement. Businesses can also continue messaging customers on phone numbers they already hold, and authentication messages will still be sent to numbers as before.

The bigger picture

For a platform that built its scale on the simplicity of phone-number identity, the introduction of usernames represents a structural rethink — a deliberate move toward a privacy-first, brand-aware model of online identity. With nearly three billion users worldwide and India at the centre of its footprint, how quickly and how widely the feature is adopted will offer one of the clearest signals yet of how the next era of private messaging takes shape.