Call Barring Code [Mobile]

Call barring works on the network level (via your SIM card and mobile carrier), not just on the phone’s software. This makes it more secure than airplane mode or do-not-disturb, because even if someone swaps your SIM into another phone, the restrictions remain. GSM networks use standardized service codes (also called MMI codes ) starting with * and # . You dial these like a phone number. The most common ones are:

Here’s a helpful, straightforward write-up on (also known as network service restriction codes). What Is a Call Barring Code? A call barring code is a numeric password (usually 4 digits) required to activate, deactivate, or check the status of call barring —a network feature that restricts certain types of outgoing or incoming calls on your phone. call barring code