Secret Hack Codes for iPhone 4 or iPhone 4S
*#43# Use to verify if call waiting is enabled *#61# Verify the number for unanswered calls *#62# Verify the number for call forwarding if no service is available. *#67# Verify the number for call forwarding if phone is busy *#33# To verify whether barring is enabled or disabled for outgoing *#21# To display the settings for your call forwarding *3001#12345#* Enters Field mode which allows you to access most of the hidden settings and functions of your iPhone. *#06# Display the IMEI of your iPhone, as always this is the standard code for all brands of phones. *225# Displays the account balance for postpaid contracts. *777# Displays the account balance for prepaid accounts . *646# Displays the remaining minutes available. *3282# Get your data usage information. *729 Options to make payments. Its operator specific. 611 Dials customer service, (114 in RSA for Vodacom). Its operator specific. *#30# This shows whether you