STC’s call barring includes one option that Mobily and Zain’s equivalent guides don’t mention — a roaming-specific incoming bar that only kicks in while you’re abroad, leaving your line completely normal at home. Worth knowing if a blanket incoming bar feels like more restriction than you actually need.
Quick answer
Standard GSM barring codes with your PIN (default 0000):
| Bar | Code |
|---|---|
| All outgoing calls | *33*PIN# |
| Outgoing international | *331*PIN# |
| All incoming calls | *35*PIN# |
| Incoming while roaming only | *351*PIN# |
| Remove all bars | #330*PIN# |
Why *351*PIN# is the more targeted choice
A full incoming bar (*35*) blocks every call, everywhere, including at home. *351* is narrower: it only activates the restriction while you’re roaming internationally, which matters if your goal is specifically avoiding roaming-related incoming charges rather than becoming unreachable altogether. Set it before a trip and your line behaves completely normally the moment you’re back on STC’s home network.
Checking status by direction
STC lets you verify outgoing and incoming bars separately — *#33# for outgoing status, *#35# for incoming — rather than one combined check, useful if you’ve applied more than one bar and want to confirm exactly what’s active.
Managing via the app
The MySTC app offers the same controls without needing to dial codes at all.
Need to redirect calls instead? See STC call forwarding.
Codes verified against STC’s official support guidance, July 2026.
Step-by-Step Guide
- 1
Activate
*33*0000# (or your PIN) for all outgoing.
- 2
Check
*#33# for status.
- 3
Cancel
#330*PIN# removes all.
Alternative Methods
Dial *33*PIN# from your phone dialer.
MySTC App
Troubleshooting
PIN rejected
Try 0000. Call 900 to reset.
Can't call
Barring may be active. #330*PIN#.
Look Up More USSD Codes
Frequently Asked Questions
What is the default STC barring PIN?
0000. Change it via MySTC app or by calling 900.
Is call barring free on STC?
Yes, setting up and removing bars costs nothing — you only pay for calls you make.
What if I forget my PIN?
Call 900 to have STC reset your barring PIN.
What does *351*PIN# do that *35*PIN# doesn't?
*351* only bars incoming calls specifically while roaming abroad; *35* blocks all incoming calls regardless of your location.
Can I check outgoing and incoming bar status separately?
Yes — *#33# checks outgoing bar status, *#35# checks incoming, independently of each other.