You can absolutely use Uber without a US phone number in 2026 by utilizing your home country's mobile number or a data-only eSIM. Uber is a global platform that allows international numbers for registration; you simply need to ensure your phone can receive the initial SMS verification code via roaming. If you don't want to roam, a popular "hack" is to use a VoIP service or a temporary "Burner" app that provides a US-based number over Wi-Fi, though Uber's security filters sometimes block these. Alternatively, you can register your account using your original number before leaving your home country. Once the account is set up, the app works via Wi-Fi or a local data eSIM (like Airalo) regardless of which SIM card is active. If you need to contact your driver, use the in-app messaging or VOIP calling feature within the Uber app, which uses data rather than traditional cellular minutes, circumventing the need for a US-based phone line entirely.