those people are tryin to tell u the unlock pin default codes, the subsidy unlock code is actually diff from att phones and cingular they aint all tha same number they all diff u can get them online if u dont know anyone, bad thing iz in tha storez they try to rip u off sumtimez the best thing to do is go online or did u have service w cingular? also u gonna have a hard time usin sum featurez on it like tha internet, txt mozt likly will work but it aint really good uzin a unlocked phone from another carrier since itz all diff software sumtimez u cant even use tha internet w correct settingz cuz of software