WhatsApp is introducing usernames that let users start conversations without revealing their phone numbers, marking a significant shift in the platform's privacy approach. The feature opens username reservations on June 29, 2026, allowing people to connect with classmates, neighbors, or event contacts using just a username instead of personal phone details.

Users must know an exact username to initiate contact, preventing random messages from strangers. An optional username key adds another privacy layer, requiring both pieces of information before conversations begin. Unlike social platforms, WhatsApp won't create public directories or suggest accounts, keeping the service focused on private messaging rather than public discovery.

Businesses and organizations can claim usernames matching their Instagram or Facebook identities for consistent branding across Meta's ecosystem. A built-in username generator helps users find available names during setup. The gradual rollout gives the app's three billion users time to reserve desired handles before wider availability later in 2026.

Phone numbers remain deeply tied to personal identity and digital accounts, making this privacy update particularly meaningful for users concerned about unwanted contact. By requiring exact usernames and offering optional keys, WhatsApp strengthens its messaging privacy without transforming into a traditional social network.