APAC is an abbreviation for Asia Pacific, which is a regional designation used for government, marketing and business purposes.
A few years ago, some networks works together with Apple and brought the iPhone to customers in East Asia, Southeast Asia, and Oceania markets.
iPhones sold there may have their carriers marked as APAC in the Apple’s database, and may not necessarily be tied to a specific carrier.
To know if your phone can be considered as APAC you just need to run the IMEI on the tool iPhone Network Finder & Simlock Status
and if the result show "Next Tether Activation Policy Description: APAC Service" then youll be happy to know that you can unlock this phone using this service.
We can’t give more details between the difference between the 3 services, but basically you must try the cheapest one,
and in case of Not Found then you can try using “Premium #1″ and only then using “Premium #2″.
WARNING: If you don't check properly the phone with "iPhone Network Finder & Simlock Status" before place the order and then our supplier realize you didn't.
Then we'll charge you $5 penalty per error showing to you the proof by email !