Expo Docs MCP Server

--- title: Cellular description: An API that provides information about the user's cellular service provider. sourceCodeUrl: https://github.com/expo/expo/tree/sdk-51/packages/expo-cellular packageName: expo-cellular iconUrl: /static/images/packages/expo-cellular.png platforms: ["android", "ios", "web"] --- `expo-cellular` provides information about the user's cellular service provider, such as its unique identifier, cellular connection type, and whether it allows VoIP calls on its network. ## Installation ## Configuration If you're not using Continuous Native Generation ([CNG](/workflow/continuous-native-generation/)) or you're using native a **android** project manually, then you need to add `android.permission.READ_PHONE_STATE` permission to your project's **AndroidManifest.xml**. This permission is used for `TelephonyManager`. ```xml android/app/src/main/AndroidManifest.xml <uses-permission android:name="android.permission.READ_PHONE_STATE" /> ``` This library does not require the more risky `READ_PRIVILEGED_PHONE_STATE` permission. ## API ```js ``` ## Error codes | Code | Description | | -------------------------------------------- | -------------------------------------------------------------------- | | ERR_CELLULAR_GENERATION_UNKNOWN_NETWORK_TYPE | Unable to access network type or not connected to a cellular network | ## Permissions ### Android You must add the following permissions to your **app.json** inside the [`expo.android.permissions`](../config/app/#permissions) array. ### iOS _No permissions required_.