WhatsApp today opened reservations for a new username system that will allow users to connect with others without revealing their phone number, a structural change to how the platform handles first-contact privacy across its more than three billion users.

How the username system works

According to WhatsApp, the reservation period is opening now so that users can secure a preferred handle ahead of the feature's full launch later in 2026. The platform cited the scale of its user base as the reason for the early access window: with over three billion people registered, name collisions are common, and waiting until launch would leave many users without the handle they wanted.

The design is intentionally non-public. WhatsApp states there is no searchable directory and no algorithmic suggestions. Someone trying to reach another person for the first time must know the exact username - a departure from how most social platforms handle discoverability. Knowing the handle is a necessary but, in some cases, not sufficient condition for making contact.

WhatsApp has added a second layer called the username key. This is an optional mechanism that requires the sender to know both the username and a separate key value before a first message can go through. The platform has not specified the technical format of the key, but its purpose is to filter out anyone who might learn a username without having received it directly from the account holder. Together, the username and key combination creates a two-factor contact filter entirely under the user's control.

Once a username is active and a conversation begins, phone number exposure changes. According to WhatsApp, when users message a person or business for the first time, that recipient will no longer see the sender's phone number - provided the sender has enabled their username. The change applies specifically to first contact. What happens to number visibility in established conversations was not addressed in the announcement.

Reserved options for creators and businesses

The system includes a separate path for people who already maintain a consistent presence on Meta's other platforms. According to WhatsApp, creators, small businesses, and organizations can claim their existing Instagram or Facebook username on WhatsApp, preserving handle consistency across platforms. This option was reserved in advance, meaning it is not a general first-come-first-served reservation but a protected claim for those with matching handles elsewhere in Meta's ecosystem.

That design choice reflects the practical reality that high-value usernames on a three-billion-user platform would be taken quickly. By pre-reserving Instagram and Facebook handles, WhatsApp avoids a scenario where a creator finds their established identity already occupied by an unrelated account.

How to reserve a username

Reservations are available starting today in the latest version of the WhatsApp application. According to WhatsApp, the process takes a few seconds: Settings, then Account, then Username. A built-in username generator is available for users who want help selecting one. WhatsApp said it will roll out the full feature gradually over the coming months and will notify users within the app when it becomes available in their country.

The staggered rollout means the reservation and the actual use of a username are separated in time. Users reserving a handle today are securing a name for a feature they will not be able to activate until later in 2026, depending on geography.

Privacy architecture in context

The username feature continues a pattern of privacy-oriented product changes at WhatsApp. Incognito Chat with Meta AI, announced May 13, 2026, uses Trusted Execution Environments to prevent even Meta from reading AI conversations on the platform - one of the more technically specific privacy claims any major messaging service has made. The username launch extends that privacy posture into the contact initiation layer, where phone numbers have historically been the sole identifier.

The phone number dependency has been a longstanding point of friction on WhatsApp. Because the platform is built on phone-number identity, adding a contact has traditionally required sharing a number - which also serves as an identifier across telecommunications systems, two-factor authentication flows, and financial services. Usernames address the social cost of that exposure without restructuring the underlying account architecture.

For businesses using the platform, the change intersects with a broader expansion of WhatsApp's commercial features. WhatsApp Status ads launched in June 2025, using cross-platform data from Instagram and Facebook to target the platform's 1.5 billion daily users in the Updates tab. Separately, the EU forced Meta in June 2026 to reopen the WhatsApp Business API to third-party AI assistants after the Commission imposed interim measures in case AT.41034, finding that Meta's October 2025 restriction on general-purpose AI integrations constituted an antitrust concern. Those commercial and regulatory developments sit alongside the consumer-facing privacy work the username system represents.

The no-directory design also has relevance for business communications. According to WhatsApp, a person or business contacted for the first time via username will not see the sender's phone number if the username is enabled. For businesses receiving inbound contact, this means they may be communicating with users who have deliberately kept their number private. The implications for customer data collection and identity matching in downstream CRM systems were not addressed in the announcement.

The Meta Business Agent, introduced at the Conversations 2026 event in London on June 3, 2026, and which runs across WhatsApp, Messenger, and Instagram, is designed to automate inbound customer conversations. If users can now initiate contact via username without revealing a phone number, businesses using the Meta Business Agent will need to consider how their identity resolution workflows handle pseudonymous contacts - particularly in markets where phone numbers have been used as primary customer keys.

Group conversations

According to WhatsApp, the problem the username system addresses is not limited to one-to-one contact. The company specifically cited group conversations as a use case: joining a group chat - the example given was a parents' group for a children's sports team - currently requires sharing a phone number with people the user may never have met. Usernames would allow group participation without that disclosure. WhatsApp did not detail the exact mechanism by which usernames would function in group settings, whether group membership lists would show usernames in place of numbers, or how group invitations would work under the new system.

Timeline

  • June 2025: WhatsApp Status advertising launches globally, using data from connected Instagram and Facebook accounts.
  • May 13, 2026: Meta announces Incognito Chat with Meta AI on WhatsApp, using Trusted Execution Environments to prevent Meta from accessing AI conversations.
  • June 3, 2026: Meta introduces the Meta Business Agent at Conversations 2026 in London, launching AI customer service across WhatsApp, Messenger, and Instagram.
  • June 29, 2026: WhatsApp opens username reservations. Users can secure a handle via Settings > Account > Username in the latest app version. The feature itself is scheduled to launch later in 2026, with a gradual country-by-country rollout.

Summary

Who: WhatsApp and its more than three billion registered users, as well as creators, small businesses, and organizations using Meta's platforms.

What: WhatsApp opened reservations today for an optional username system that replaces phone numbers as the identifier for first-contact messages. The feature includes an optional username key that adds a second layer of contact control. Users reserving a username now will be able to activate it later in 2026 when it becomes available in their country.

When: Reservations opened on June 29, 2026. The full feature is scheduled to launch later in 2026, rolling out gradually by country.

Where: The reservation is accessible globally through the latest version of the WhatsApp app, under Settings > Account > Username.

Why: WhatsApp is addressing a longstanding friction point: connecting on the platform has required sharing a phone number, which carries significance beyond messaging. The username system allows users to chat, join group conversations, and be contacted by businesses without disclosing their number, giving individuals more granular control over who can reach them and under what conditions.