H.2 List of SFI Values at the DF GSM-ACCESS Level

31.1023GPPCharacteristics of the Universal Subscriber Identity Module (USIM) applicationRelease 17TS

File Identification	SFI	Description
‘4F20’	’01’	GSM Ciphering Key Kc
‘4F52’	’02’	GPRS Ciphering Key KcGPRS

All other SFI values are reserved for future use.