SK Telecom FAQ

Answers to your most common questions about SK Telecom.

Quick, simple, and helpful information at a glance.

What is SK Telecom?
SK Telecom is a South Korean telecommunications company that offers mobile, fixed-line, and internet services.
How do I check my SK Telecom balance?
You can check your balance by dialing *159# on your phone or through the My SKT app.
What should I do if my SK Telecom SIM card is lost or stolen?
If your SIM card is lost or stolen, please contact SK Telecom customer service immediately to suspend your service and request a new SIM card.
Why is my SK Telecom bill higher than usual?
There could be various reasons for a higher bill, such as data overage charges or international calling fees. Please check your bill details or contact customer service for further assistance.
How do I change my SK Telecom phone number?
You can change your phone number by visiting an SK Telecom store or contacting customer service.
Why am I experiencing slow internet speed on my SK Telecom device?
Slow internet speed can be caused by various factors, such as network congestion or device issues. Please try restarting your device or contact customer service for assistance.
How do I activate international roaming on my SK Telecom phone?
You can activate international roaming by dialing *159# and selecting the option for international roaming, or by contacting customer service.
I'm not receiving text messages on my SK Telecom phone. What could be the reason?
This could be due to network issues or a problem with your device. Please check your network connection and restart your device. If the issue persists, contact customer service for assistance.
I'm traveling to a new country. Will my SK Telecom SIM card work there?
SK Telecom has partnerships with various international carriers, but it's best to check with customer service beforehand to ensure your SIM card will work in your destination country.
How do I set up call forwarding on my SK Telecom phone?
You can set up call forwarding by dialing *90 followed by the phone number you want to forward calls to. To cancel call forwarding, dial *91.
Why am I unable to make calls on my SK Telecom phone?
This could be due to network issues or a problem with your SIM card. Please check your network connection and make sure your SIM card is inserted correctly. If the issue persists, contact customer service for further assistance.
How do I subscribe to an SK Telecom data plan?
You can subscribe to a data plan through the My SKT app or by visiting an SK Telecom store.
I received an error message saying my SIM card is not activated. What should I do?
Please contact customer service for assistance in activating your SIM card.
How do I change my SK Telecom plan?
You can change your plan by visiting an SK Telecom store or contacting customer service.
Why am I not able to send or receive picture messages on my SK Telecom phone?
Picture messages require a data connection. Please make sure you have a data plan or are connected to Wi-Fi, and check your APN settings. If the issue persists, contact customer service for assistance.
How do I check my SK Telecom data usage?
You can check your data usage through the My SKT app or by dialing *159# on your phone.
I'm unable to connect to the SK Telecom network. What could be causing this?
This could be due to network issues or a problem with your device. Please check your network connection, make sure you have sufficient network coverage, and try restarting your device. If the issue persists, contact customer service for further assistance.
How do I activate my SK Telecom SIM card?
Your SIM card should be activated automatically once you insert it into your device. If you're having trouble with activation, please contact customer service.
I'm getting an "invalid SIM" error message. What could be causing this?
This could be due to a problem with your SIM card or your device. Please contact customer service for assistance.
How do I change my SK Telecom APN settings?
You can change your APN settings in your device's network settings or by contacting customer service for assistance.
Why am I unable to access certain websites on my SK Telecom device?
This could be due to network restrictions or a problem with your device. Please check your network connection and try accessing the website on a different device. If the issue persists, contact customer service.
How do I report a network outage to SK Telecom?
You can report a network outage by contacting customer service or through the My SKT app.
Why am I receiving an "out of service area" error message on my SK Telecom phone?
This could be due to network coverage limitations or an issue with your device. Please check your network connection and try restarting your device. If the issue persists, contact customer service for further assistance.
How do I transfer my contacts to a new SK Telecom device?
You can transfer your contacts by backing them up to your Google or Samsung account, depending on your device. If you're having trouble with this, please contact customer service for assistance.
How do I pay my SK Telecom bill?
You can pay your bill through the My SKT app, online, or at an SK Telecom store.