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Secret Codes of iPhone X, iPhone 8/8 Plus, iPhone 7/7 Plus

Updated on Feb 27, 2018 by Tuan Do

People love iPhone because it is simple and intuitive to use. However, you might not know that there are some secret codes (or interrogation codes) to give you a quick access to some important information or settings.

To use the code, you will just need to open the Phone app on your iPhone. Then, instead of dialing a phone number, you will input a secret code and probably need to press the green call button.

Now, let’s check out all the available interrogation codes. All of them are the same for iPhone X, iPhone 8/8 Plus, or iPhone 7/7 Plus.

Interrogation Code Function
*3001#12345#* Field Test Mode: It will show you detailed information about cellular signal including SIM info, a signal strength, data about surrounding cell towers, etc
*#06# View iPhone IMEI (International Mobile Equipment Identity) number
*777# Check account balance for prepaid iPhone
*225# Check bill balance for Postpaid
*646# Check minutes for Postpaid
*#21# See settings for call forwarding
*#30# Check if the presentation of the calling line is enabled or disabled
*#76# Check if the connected line presentation is enabled or disabled
*#43# Show call waiting status, then you can enable with *43# or disable with #43#
*#61# Check the number for unanswered calls
*#62# Check the number of forwarded calls when service is unavailable
*#67# Check the number of forwarded calls when the phone is busy
*#33# Check if call barring is enabled or disabled, then you can turn on using *33*your_pin_number_here# or turn off with  #33*your_pin_number_here#
*#31# Check outgoing call anonymity status
#31#phone_number Make an anonymous phone call
*#5005*7672# Check SMS Message Center Number
*3370# EFR Mode

Disclosure: As an Amazon Associate, I earn from qualifying purchases. The commission help keep the rest of my content free, so thank you!

Reader Interactions

Comments

  1. Cheryl Starner says

    Dec 16, 2019 at 2:40 pm

    When I try these codes, I get an automated response from Verizon saying, “welcome to Verizon Wireless. We are unable to complete your call”. What’s up with that? I have the most recent IOS update on my iPhone 7 Plus.

    Reply

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