Secret Codes

iPhone codes by category

317 checked codes and guides from the Secret Codes app, one page each. Choose a category.

By Muhammad Shahid. Last updated 4 November 2026.

Call forwarding codes

Every code to set, check, pause and cancel call forwarding on an iPhone.

Hide or show your number, check your caller ID status and control scam blocking.

The GSM codes for barring calls, changing your SIM PIN and unblocking with a PUK.

Balance, minutes, data and payment codes for the main US carriers.

Deeper carrier codes, N11 services such as 411 and 988, and international dialling.

Mint, Visible, Cricket, Metro, Boost, Google Fi, Straight Talk and other smaller carriers.

Call waiting, 5G and LTE, network selection, roaming and hotspot settings.

Find your ICCID and EID, and add, move or remove an eSIM.

Reach voicemail, change its number and check messages from another phone.

Report spam, lock your number against port-out fraud and protect a lost iPhone.

Step-by-step fixes for No Service, dropped calls, texts, voicemail, eSIM and more.

Call recording, call screening, RCS, per-app data and accessibility, with the exact path.

Emergency SOS, RTT, conference calls, force restart and other built-in features.