What is SIM Unlock Code?

A SIM Unlock Code, also known as a Network Unlock Code or an MEP Code, is a unique code that is used to unlock a mobile phone from its original carrier or network provider. This code is specific to each phone and is required if a user wants to switch to a different network or use their phone while traveling abroad. When a phone is purchased from a carrier or network provider, it is typically locked to that specific network.