Device Id |top| Guide

: A unique number for identifying cellular devices.

: These are more permanent and tied to the physical components.

: These are the most common in the consumer space. device id

: Used by Apple for iOS devices. It is an uppercase alphanumeric string (e.g., AAAAAAAA-BBBB-CCCC-1111-222222220000 ).

Depending on the platform and purpose, "Device ID" can refer to several different types of identifiers: : A unique number for identifying cellular devices

: Also known as AAID, this is the Android equivalent used to connect devices to ad campaigns and in-app events.

Device IDs are critical for the functionality of modern apps and services: How it works: Device registration - Microsoft Entra ID : Used by Apple for iOS devices

: A unique identifier assigned to a network interface controller for communications on a physical network. System Identifiers :