9 secret code iOS 5 , iOS 6 , iOS 7 , iOS 8 and iOS 9

1)IMEI Number | Code: *#06#

2)Field Test | Code: *3001#12345#* + ‘Call

3)Call Barring | Status: *#33# | Turn ON: *33*pin# | Turn OFF: #33*pin#

4)Call Waiting | Status: *#43# | Enable: *43# | Disable: #43#

5)Call Forwarding | Status – All: *#21# – Unreachable: *#62# – When Busy: *#67# | Disable All Forwarding: ##002# + ‘Call’

6)Outgoing Call Anonymity | Status: *#31#+ | Current Call: #31#phone-number + ‘Call’

7)Incoming Call Presentation | Status: *#30# + ‘Call’:

8)SMS Message Center Number | Check: *#5005*7672# + ‘Call’:

9)To check  SMS center.*#5005*7672# 

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