Numerous readers have written in to tell us that AT&T is not offering them upgrade pricing for the iPhone 4S to the iPhone 5. The iPhone 4S went on sale in mid-October of 2011, so even those in the first round of buyers are only midway through a two-year contract.
Domestically, you can check your individual account status via Apple's iPhone 5 eligibility page, covering all three US carriers. In other countries, there should be similar carrier check-in links on the local version of store.apple.com.
Customers who bought the 4S from AT&T signed on for a 24-month contract in exchange for a lower, subsidized purchase price for
