if you go on the at&t site, and use the store locator feature, click on the store and go to about. If it is not corporate, it will say authorized retailer. go to att. com… store locator at the bottom of the page…. Look for local store… click on store… click on about store… at the top it’ll be blank for corporate or it’ll say authorized. at&t has been operating in indonesia under the local service provider model since 1992. aug 4, 2015 · how do you locate an at&t…