Because Android phone manufacturers ship customized dialers, menu locations vary slightly between pure Google Pixel builds, Samsung One UI, and Xiaomi HyperOS. However, the underlying telephony protocol remains uniform.
Open the default Phone app, tap the three-dot menu icon in the upper-right corner, and select Settings. On Samsung Galaxy devices, select Supplementary Services. On Google Pixel or Motorola devices, navigate to Calling Accounts, select your primary SIM card, and tap Additional Settings.
Inside that menu, select Caller ID. Android provides three distinct options: Network default, Hide number, and Show number. Select Hide number. The phone software now injects the network-level suppression instruction into every outbound cellular handshake, keeping your line identity unlisted for all general voice traffic.
