Secret iPhone Interrogation Codes - tweak Field Test, Call Settings, Call Anonymity, EFT Mode, and more

Secret iPhone Interrogation Codes - tweak Field Test, Call Settings, Call Anonymity, EFT Mode, and more
It turns out the iPhone has some secrets of its own! Here, we'll be having a look at the iPhone's so-called "interrogation" codes. By entering them in the iPhone's keypad and tapping "Call", you can "interrogate" the device whether certain network and calling features are enabled. And by inputting some related codes, you can toggle certain features on or off.

The following codes should work on all recent iPhones, regardless of carrier. You won't find anything mindblowing, but you can have some fun with these on a boring afternoon. Oh, and some are actually quite useful! For example, you can input a particular code in front of a certain contact's number, and all outgoing calls to it will have your iPhone's number hidden! Stuff like that.


Related phones

iPhone 6
  • Display 4.7" 750 x 1334 pixels
  • Camera 8 MP / 1.2 MP front
  • Processor Apple A8, Dual-core, 1400 MHz
  • Storage 128 GB
  • Battery 1810 mAh(14h 3G talk time)

FEATURED VIDEO

9 Comments

1. AfterShock

Posts: 4147; Member since: Nov 02, 2012

Crickets.. Fashionistas have no need for settings.

7. strudelz100

Posts: 646; Member since: Aug 20, 2014

You do realize you pander to a 98% pro-android crowd on here? I know you sad folks are desperate for approval and all. But what a useless time waster. Really people with any pro-Apple opinions are the brave ones around here, facing off with droves of idiot fanboys who are offended when my opinion doesn't match theirs.

8. AfterShock

Posts: 4147; Member since: Nov 02, 2012

Good grief, brave? Child? Must have hurt.

2. Mxyzptlk unregistered

Neat. Some of these I never knew about.

3. AfterShock

Posts: 4147; Member since: Nov 02, 2012

Of course you didn't silly.

6. strudelz100

Posts: 646; Member since: Aug 20, 2014

Child.

4. Kriksis

Posts: 94; Member since: Aug 27, 2012

The last one was available on old NOKIA feature phones, I remember using it 10 years ago...

5. strudelz100

Posts: 646; Member since: Aug 20, 2014

Very cool PA something I actually did not know about!

9. AfterShock

Posts: 4147; Member since: Nov 02, 2012

Comes as a surprise to no one here honestly. Run along and get us a coffee from that Starbucks you work at honey.

Latest Stories

This copy is for your personal, non-commercial use only. You can order presentation-ready copies for distribution to your colleagues, clients or customers at https://www.parsintl.com/phonearena or use the Reprints & Permissions tool that appears at the bottom of each web page. Visit https://www.parsintl.com/ for samples and additional information.
FCC OKs Cingular's purchase of AT&T Wireless