WhatsApp begins rolling out unique username reservation system

WhatsApp began rolling out a global username reservation system this week, allowing its 3 billion users to reserve unique usernames through the latest app version. According to the company, the feature aims to enhance privacy by enabling users to connect without sharing their phone numbers and will be gradually introduced over the coming months.

The reservation process is optional and can be completed in a few seconds, WhatsApp said. The reserved usernames will become functional later this year when the feature fully launches, with a gradual rollout planned over the coming months. Users will receive in-app notifications when the username system becomes available in their country.

Users can reserve unique usernames starting June 29 by updating to the latest version of WhatsApp and navigating to Settings > Account > Username, according to an official blog post by the company.

WhatsApp’s new username system is designed to enhance privacy by allowing users to connect without sharing their phone numbers, according to multiple reports including the *Straits Times* and *Economic Times*. The company described the feature as part of a broader effort to reduce reliance on phone numbers for identification, thereby limiting exposure during initial contact. The usernames must be unique, meaning only one user can reserve each handle, and must follow specific formatting rules reported by WABetaInfo. These rules include using only lowercase letters, numbers, periods, and underscores, with usernames required to contain at least one letter and prohibited from starting with “www.” or ending in domains such as “.com” or “.net”.

In addition to the username reservation, WhatsApp is testing a “username key” as an additional security layer. According to Business Standard, this key may prevent messages from being received unless the sender has the matching key, providing an extra level of control over who can initiate contact. The username key is part of the company’s privacy enhancements but has not yet been widely deployed.

The rollout will affect WhatsApp’s entire global user base of approximately 3 billion people, according to reports from the *Straits Times* and other outlets. However, the feature will not be available simultaneously worldwide; instead, Meta-owned WhatsApp plans a phased introduction by country. This approach aligns with the company’s statement that users will be notified within the app when usernames become accessible in their region.

Prior to the official launch, WhatsApp had been testing the username reservation feature in beta versions of the app. WABetaInfo identified functionality related to username reservations in Android beta version 2.25.28.12, and the company’s official blog confirms the feature’s availability starting this week. The blog post did not specify a precise date for the full activation of usernames but indicated it would occur later in 2026.

The username reservation option is accessed through the app’s settings menu and is optional for users who wish to adopt it. WhatsApp emphasized that reserving a username now does not mean it can be used immediately but will secure the handle for future use when the system is fully operational. This reservation-first approach is intended to allow users to claim their preferred usernames ahead of the feature’s broader rollout.

The introduction of usernames marks a significant change for WhatsApp, which has traditionally relied on phone numbers as the primary identifier for users. By enabling connections without sharing phone numbers, the company aims to address privacy concerns that have been raised over the years. This initiative is consistent with WhatsApp’s ongoing efforts to improve user privacy and security, as evidenced by the testing of the username key and the gradual rollout strategy.

The official blog post announcing the username reservation system serves as the primary source for these details, with secondary reporting from regional news outlets confirming the privacy rationale and the phased implementation plan. As the rollout progresses, WhatsApp users worldwide can expect to see the option to reserve usernames appear within the app, followed by the full activation of the feature later this year.

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