WhatsApp is introducing a global username reservation system that allows users to communicate without sharing their phone numbers [1, 2].

This change addresses a long-standing privacy gap for the platform's approximately three billion users [3]. By decoupling a user's identity from their mobile number, the company aims to provide a layer of anonymity and security during interactions with strangers or professional contacts [1, 4].

The rollout of the username feature is occurring in 2026, though reports on the exact timing vary. Some sources said that username reservations are opening to users worldwide this week [5], while others suggest the feature will be introduced by mid-2026 [6]. Further reports said the functionality will be available to all users before the end of 2026 [7].

Under the current system, users must provide their phone number to be discovered or added to a chat. The new system allows users to create and reserve a unique handle, which others can use to initiate a conversation. This mechanism mirrors the functionality found in other social messaging platforms, reducing the risk of phone number harvesting and unwanted calls, a common concern for users in public forums.

Meta Platforms, the parent company of WhatsApp, is opening the reservation process globally [2, 5]. This ensures that users across different regions can secure their preferred handles as the feature becomes standard across the application.

While the specific technical steps for reservation are being deployed, the primary goal remains the enhancement of user privacy [1, 4]. The transition marks a significant shift in how the app manages identity, moving away from the strict phone-number-centric model that defined its early growth.

WhatsApp is introducing a global username reservation system that allows users to communicate without sharing their phone numbers

The move toward usernames signals WhatsApp's evolution from a simple SMS replacement into a full-scale social ecosystem. By removing the requirement to share phone numbers, Meta reduces the friction for new connections and mitigates privacy risks, bringing the app's architecture closer to that of Telegram or Signal.