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SK Telecom South Korea

Carrier Check & Mobile Network Specifications

Invalid IMEI.

SK Telecom logoThe SK Telecom carrier from South Korea is denoted by codes: 450 05, 450 12. The followings IDs are called HNI (Home network identity). This code is created by the combination of two other Mobile Country Code (MCC) and Mobile Network Code (MNC). The first three numbers stand for the MCC and they are used in order to identify the region which the carried comes from (in the following example it’s South Korea). The last numbers of the HNI code are equal with the MNC and this ID is given for the specific mobile network operator.

Besides SK Telecom South Korea has assigned country code + 82. This number + 82 is equal with international calling code and it’s simply the telephone dialing prefixes used for calling SK Telecom numbers.
SK Telecom uses 0 GSM bands, 1 UMTS bands, 4 and 1 CDMA bands.. You can read the specific frequency bands in the table below. All bands of the SK Telecom are display in MHz units.
Another important information in SK Telecom South Korea architectures is the standard of used protocols. It also uses 7 protocols such as GSM, UMTS, LTE, CDMA.

The ISO standard code of SK Telecom is KR. You can see more info about this mobile network operator at http://www.sktelecom.com/. How to check SK Telecom coverage? How to check if your phone will work in South Korea? Those information will help you figure out if your device will work in the SK Telecom roaming. Use out database and check out if your device will be locked or unlocked in SK Telecom.

Use our CARRIER LOOKUP TOOL in order to make sure that your phone number is using SK Telecom network.

If you'd like to find out whether your device is going to work with SK Telecom (South Korea), please check the details below:

All you need to do is compare bands specification from your mobile network with the bands used in your device. You can check the supported bands for your phone by using out phone database.


Name SK Telecom
Company SK Telecom Co., Ltd.
Country South Korea flag South Korea
Country ISO KR
Country code + 82
Carrier website http://www.sktelecom.com/
Carrier codes
  • 450 05
  • 450 12
Mobile prefix 10, 11, 16, 17, 18, 19
Coverage map Unknown
Subscribers 31 230 000 (Q4 2023)
UMTS bands
  • B1 (2100)
UMTS protocols
  • HSPA+
  • UTMS
LTE bands
  • B1 (2100)
  • B3 (1800+)
  • B5 (850)
  • B7 (2600)
LTE protocols
  • LTE
  • LTE-A
CDMA bands
  • BC0 (800)
CDMA protocols
  • CDMA2000 1XEV-DO REL. 0
  • CDMA2000 1XEV-DO REV A
  • CDMA2000 1XRTT

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