搭載 Android 9 的裝置可辨識訂閱的電信業者資訊，並提供 ID 和電信業者名稱。Android 會維護運營商 ID 資料庫，其中包含每家運營商的配對規則，以及運營商專屬的 ID。AOSP 會在 carrier_list.textpb 檔案中加入電信業者 ID 資料庫的內容。統一資料庫可減少需要識別電信業者的應用程式中重複的邏輯，並限制電信業者識別屬性的曝光程度。
為提升電信業者識別功能的涵蓋範圍和準確度，Android 支援頻外和電信業者 ID 表更新。每項更新都會附上版本號碼，並發布至 AOSP。
[[["容易理解","easyToUnderstand","thumb-up"],["確實解決了我的問題","solvedMyProblem","thumb-up"],["其他","otherUp","thumb-up"]],[["缺少我需要的資訊","missingTheInformationINeed","thumb-down"],["過於複雜/步驟過多","tooComplicatedTooManySteps","thumb-down"],["過時","outOfDate","thumb-down"],["翻譯問題","translationIssue","thumb-down"],["示例/程式碼問題","samplesCodeIssue","thumb-down"],["其他","otherDown","thumb-down"]],["上次更新時間：2025-07-26 (世界標準時間)。"],[],[],null,["# Carrier identification\n\nDevices running Android 9 can recognize subscription\ncarrier information to\nprovide an ID and a carrier name. Android maintains a carrier ID database, with\nmatching rules for each carrier and its unique carrier ID. AOSP includes the\ncontent of the carrier ID database, in the file\n[`carrier_list.textpb`](https://android.googlesource.com/platform/packages/providers/TelephonyProvider/+/android16-release/assets/latest_carrier_id/carrier_list.textpb).\nThe unified database minimizes duplicate logic in apps that need to identify\ncarriers and limits the exposure of carrier-identifying attributes.\n\nTo improve the coverage and accuracy of carrier identification, Android supports\nout-of-band and carrier ID table updates. Each update comes with a version\nnumber and is published to AOSP.\n\nImplementation\n--------------\n\nUsers who want to implement out-of-band updates can download the\n[`carrier_list.pb`](https://android.googlesource.com/platform/packages/providers/TelephonyProvider/+/android16-release/assets/latest_carrier_id/carrier_list.pb)\nbinary from AOSP. To view the readable format of the table, see\n[`carrier_list.textpb`](https://android.googlesource.com/platform/packages/providers/TelephonyProvider/+/android16-release/assets/latest_carrier_id/carrier_list.textpb).\n\nPlace the carrier ID table in the `/data/misc/carrierid/` data partition of the\ndevice. If the carrier ID table is newer than the existing version, the device\npersists the table to the\n[carrier ID database class](https://developer.android.com/reference/android/provider/Telephony.CarrierId).\nThe most recent information from the carrier ID database is picked up by the\npublic methods\n[`getSimCarrierId()`](https://developer.android.com/reference/android/telephony/TelephonyManager#getSimCarrierId())\nand\n[`getSimCarrierIdName()`](https://developer.android.com/reference/android/telephony/TelephonyManager#getSimCarrierIdName()).\n\nAdd carrier ID information to the database\n------------------------------------------\n\nTo add or update a carrier ID to the database, submit a request using the\n[Carrier identification information form](https://docs.google.com/forms/d/1KjwTaExKRjkE9tbR9yavBrGzwvuz1dNku2Ae_7GrdUQ/viewform?edit_requested=true).\n\nYour request is reviewed and if approved, the change is pushed to the AOSP code\nbase at\n[`carrier_list.pb`](https://android.googlesource.com/platform/packages/providers/TelephonyProvider/+/android16-release/assets/latest_carrier_id/carrier_list.pb).\nYou can then copy the updated list and incorporate it into your customized\nbuild.\n\nIntegrate carrier IDs with CarrierConfig\n----------------------------------------\n\nStarting from Android 10,\n[carrier configuration](/docs/core/connect/carrier) supports\nusing carrier IDs as keys to fetch carrier-specific configurations from\n[`CarrierService`](https://developer.android.com/reference/android/service/carrier/CarrierService).\n\nIntegrating carrier IDs with `CarrierConfig` has the following advantages:\n\n- Consolidates all MCC/MNC pairs for each carrier into a single location removing duplicate or inconsistent data.\n- Creates a canonical identifier for each carrier and removes ambiguity.\n- Allows mobile virtual network operators (MVNOs) to be identified with individual IDs instead of having configurations as part of a mobile network operator (MNO).\n\n### Migrate configuration data to carrier IDs\n\nTo migrate configuration data from MCC/MNC pairs to carrier IDs, follow\nthese steps:\n\n1. Group the `carrier_config_mccmnc.xml` files from a single carrier together.\n Use\n [`carrier_list.textpb`](https://android.googlesource.com/platform/packages/providers/TelephonyProvider/+/android16-release/assets/latest_carrier_id/carrier_list.textpb)\n as a reference to map the MCC, MNC, and MVNO information to a particular\n carrier.\n\n2. Merge the configurations into a single file.\n\n3. (Optional) Inherit data from MNOs. MVNOs inherit configurations from\n MNOs in the legacy `carrier_config_mccmnc.xml` file. Because carrier IDs\n allow all carriers including MVNOs to have a dedicated config file, it's\n recommended to include MNO data during migration.\n\n4. If the configuration for an MVNO carrier ID doesn't exist, fetch the\n configuration from its MNO carrier ID using\n [`getCarrierIdFromSimMccMnc`](https://developer.android.com/reference/android/telephony/TelephonyManager#getCarrierIdFromSimMccMnc()).\n\n5. Rename the new file as\n `carrier_config_carrierid_`\u003cvar translate=\"no\"\u003ecarrierid\u003c/var\u003e`_`\u003cvar translate=\"no\"\u003ecarriername\u003c/var\u003e`.xml`\n where \u003cvar translate=\"no\"\u003ecarrierid\u003c/var\u003e must correspond to a `canonical_id` and\n \u003cvar translate=\"no\"\u003ecarriername\u003c/var\u003e should correspond to a `carrier_name` in\n [`carrier_list.textpb`](https://android.googlesource.com/platform/packages/providers/TelephonyProvider/+/android16-release/assets/latest_carrier_id/carrier_list.textpb)\n\n| **Note:** If a `carrier_config_mccmnc` file doesn't have a matching carrier ID, submit a request to add a carrier ID by following the steps in [Adding carrier ID information to the database](#adding_carrier_id_information_to_the_database)."]]
