STC Balance Check Code 2026: Sawa *166#, Recharge & Number

To check your STC Sawa (prepaid) balance, dial *166# and press call. To recharge, dial *155* + the number on your recharge card + #. For data left in your package, send 2220 to 900. Customer care is 900 from your STC line.

Last checked: November 2026.

All of these work from the STC SIM itself. If your phone has two SIMs, choose the STC line before you press call or send the SMS.

STC codes at a glance

What you want	Code or SMS	Where it comes from
Main balance (credit)	Dial `*166#`	stc KMMEL page
Data / package balance left	SMS `2220` (or `Balance`) to `900`	stc support FAQ
Recharge with a card	Dial `155card number#`	stc support FAQ
Recharge by SMS	SMS `155*card number#` to `1500`, or `card number 155` to `900`	stc support FAQ
Send credit to another Sawa number	SMS `133mobile number*amount#` to `900`	stc support FAQ
Your own number	Dial `*150#` (see note below)	Not on stc’s site
Customer care	Call `900`	stc customer care page
Customer care from abroad	`+966 114 55 5555`	stc customer care page

Write the codes exactly, with the star (*) and hash (#). Do not add spaces.

How to check your STC balance

Open the phone dialer.
Choose your STC SIM if you have two SIMs.
Type *166# and press call.
A message on the screen (or an SMS) shows your credit.

stc’s own KMMEL page uses *166# to show whether your balance is positive or negative, so it also works when you have taken emergency credit.

You can also open the mystc app. Your balance, package and data are on the home screen after you log in.

How to check STC data balance

Your main credit and your package data are two different balances. *166# shows the credit. For the data left in your package:

Open your SMS app.
Type 2220 (or the word Balance).
Send it to 900.
stc replies by SMS with the data and minutes left.

stc’s FAQ also lists the mystc app and the mystc website as ways to see remaining data.

How to recharge STC Sawa

You can buy Sawa recharge cards at supermarkets, mobile shops and petrol stations, or buy an e-voucher online. Then use any of these methods:

Method 1: Dial the code (fastest)

Scratch the card and find the recharge number.
Dial *155* then the recharge number, then #. Example: *155*12345678901234#
Press call. You get a confirmation message.
Dial *166# to make sure the credit arrived.

Method 2: Send an SMS

Send 155*recharge number# to 1500, or
Send recharge number + space + 155 to 900.

Method 3: mystc app

Open mystc, choose your number, tap recharge, and either enter the card number or pay online with your bank card.

How to find your own STC number

Most people dial *150# from the STC SIM, and it shows the number on screen. We could not find *150# on stc’s official website, so treat it as a common shortcut, not an official code. If it does not work for you, use one of these:

Open the mystc app. Your number shows at the top after you log in.
Call a friend or family member and ask them to read your number.
Call 900 and ask the agent.
Check your phone settings. On iPhone: Settings → Phone → My Number. On Android it is usually under Settings → About phone → SIM status (the menu name changes by brand, and some SIMs do not store the number).

Send credit to another Sawa number

stc’s FAQ gives two SMS formats. Send either one to 900 (numbers from left to right):

*133*mobile number*amount#
amount + space + mobile number + space + 133

Check the mobile number twice before you send. You can also transfer credit in the mystc app.

STC customer care

900 from any STC line
+966 114 55 5555 from outside Saudi Arabia (listed on stc’s customer care page)
Live chat in the mystc app

When you call, keep your Iqama number ready. The agent may ask for it to confirm the line is yours.

Common problems and fixes

Problem	What to try
”Connection problem or invalid MMI code”	You may have dialed from the wrong SIM, or typed a space. Choose the STC line and type the code again.
`*166#` shows credit but the internet does not work	Your credit is not your data. Send `2220` to `900` to see if your package data is finished, then renew the package.
Recharge card says “already used” or “invalid”	Check each digit again. If it still fails, call 900 with the card and the shop receipt.
`*150#` does not show your number	Use the mystc app or call 900.
Line stopped working after a long time without recharge	Prepaid lines can be suspended if not recharged for a long time. Call 900 before you buy a new SIM.
You are outside Saudi Arabia	USSD codes may not work on roaming. Use the mystc app on Wi-Fi.

FAQ

What is the STC balance check code?

Dial *166# from your STC Sawa SIM. To see data left in your package, send 2220 to 900.

What is the STC recharge code?

Dial *155* + your recharge card number + #, then press call. You can also send 155*card number# to 1500.

Is the STC balance check free?

Checking with *166# and sending 2220 to 900 are basic self-service options. stc does not list a charge for them on the pages we checked.

How do I check my STC number without balance?

Dial *150# (a common shortcut, not listed on stc’s site), or open the mystc app. You can also call 900, which is stc’s own customer care line.

Can I check another person’s STC balance?

No. The codes only show the balance of the SIM you dial from. To see another line, that person must check it or add it to their own mystc account.

Where can I find codes for Mobily, Zain and other networks?

See our page with all Saudi SIM codes in one table. You can also read the Mobily guide and the Zain guide.

All Saudi SIM codes: balance, number and recharge
Convert your STC SIM to eSIM online
Absher complete guide (check SIMs and services linked to your Iqama)

Sources: stc support FAQ – recharge, credit transfer and data balance (stc.com.sa); stc KMMEL page – *166# balance (stc.com.sa); stc customer care contact numbers (stc.com.sa).

STC Sawa Balance Check, Own Number & Recharge Codes

STC codes at a glance

How to check your STC balance

How to check STC data balance