![\"\"](\"https:\/\/www.techwalls.com\/wp-content\/uploads\/2018\/02\/iphone-interrogation-code.jpg\")
<\/a><\/p>\nInterrogation Code<\/strong><\/td>\n| Function<\/strong><\/td>\n<\/tr>\n | *3001#12345#*<\/td>\n | Field Test Mode: It will show you detailed information about cellular signal including SIM info, a signal strength, data about surrounding cell towers, etc<\/td>\n<\/tr>\n | *#06#<\/td>\n | View iPhone IMEI (International Mobile Equipment Identity) number<\/td>\n<\/tr>\n | *777#<\/td>\n | Check account balance for prepaid iPhone<\/td>\n<\/tr>\n | *225#<\/td>\n | Check bill balance for Postpaid<\/td>\n<\/tr>\n | *646#<\/td>\n | Check minutes for Postpaid<\/td>\n<\/tr>\n | *#21#<\/td>\n | See settings for call forwarding<\/td>\n<\/tr>\n | *#30#<\/td>\n | Check if the presentation of the calling line is enabled or disabled<\/td>\n<\/tr>\n | *#76#<\/td>\n | Check if the connected line presentation is enabled or disabled<\/td>\n<\/tr>\n | *#43#<\/td>\n | Show call waiting status, then you can enable with *43# or disable with #43#<\/td>\n<\/tr>\n | *#61#<\/td>\n | Check the number for unanswered calls<\/td>\n<\/tr>\n | *#62#<\/td>\n | Check the number of forwarded calls when service is unavailable<\/td>\n<\/tr>\n | *#67#<\/td>\n | Check the number of forwarded calls when the phone is busy<\/td>\n<\/tr>\n | *#33#<\/td>\n | Check if call barring is enabled or disabled, then you can turn on using *33*your_pin_number_here# or turn off with \u00a0#33*your_pin_number_here#<\/td>\n<\/tr>\n | *#31#<\/td>\n | Check outgoing call anonymity status<\/td>\n<\/tr>\n | #31#phone_number<\/td>\n | Make an anonymous phone call<\/td>\n<\/tr>\n | *#5005*7672#<\/td>\n | Check SMS Message Center Number<\/td>\n<\/tr>\n | *3370#<\/td>\n | EFR Mode<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":" | People love iPhone because it is simple and intuitive to use. However, you might not know that there are some secret codes (or\u00a0interrogation codes) to give you a quick access to some important information or settings.<\/p>\n","protected":false},"author":42,"featured_media":12886,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"","footnotes":""},"categories":[1146],"tags":[1147,20],"class_list":{"0":"post-12879","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-guide","8":"tag-guide-2","9":"tag-iphone","10":"entry"},"yoast_head":"\n |