Now over 500 Phones Listed! We are an Australian company striving to offer the best unlocking service for Australian mobile phone users. What is an Unlock Code? An unlock code removes the restrictions from your GSM device set by your carrier. This allows you to use you mobile phone on any worldwide GSM network. The beauty of having an unlocked phone means you can use a prepaid SIM card at your final destination. With an unlocked device, you will be able to obtain a local phone number and pay local rates instead of the ridiculous roaming fees that your carrier would normally charge. It can take just a few calls whilst traveling to end up with a nasty surprise when you get home. Instant Mobile Phone Unlock Codes