I bought my GSM(A1428) iPhone 5 unlocked in 2013. The retail packaging says that it has LTE bands 4(AWS) and 17. However, Apple's website: https://www.apple.com/iphone/LTE/ says that the A1428 has FOUR bands of LTE compatibility: 2 (1900 MHz) 4 (AWS) 5 (850 MHz) 17 (700b MHz) Anandtech found FCC filings listing those 4 bands. Do any carriers use Bands 2 and 5 in the U.S.? Anyone know why Apple did not initially list these bands on the iPhone specs?