Where can I download iOS 6.x firmware files for the iPhone 4S?

Looking for iOS iPhone 4S firmware files? Here are official IPSW files from Apple for the iPhone 4S.

iPhone 4S iOS 6.0.0: iPhone4,1_6.0_10A403_Restore.ipsw
iPhone 4S iOS 6.0.1: iPhone4,1_6.0.1_10A523_Restore.ipsw
iPhone 4S iOS 6.1.0: iPhone4,1_6.1_10B142_Restore.ipsw
iPhone 4S iOS 6.1.1: iPhone4,1_6.1.1_10B145_Restore.ipsw
iPhone 4S iOS 6.1.2: iPhone4,1_6.1.2_10B146_Restore.ipsw
iPhone 4S iOS 6.1.3: iPhone4,1_6.1.3_10B329_Restore.ipsw