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Mobile networks and carriers in South Korea use 1 UMTS band, 5 LTE bands, and 2 CDMA bands. Find out if your unlocked phone or mobile device will work in South Korea. See the tables below for details.

Will your phone or mobile device work in South Korea?

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Check device compatibility


Select a carrier to see frequency details
Name # of frequency bands in use
KT 4
LG U+ (Uplus) 4
SK Telecom 5

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Frequencies in use


Name Interface
B1 (2100) UMTS


Name Interface
B1 (2100) LTE
B3 (1800 +) LTE
B5 (850) LTE
B7 (2600) LTE
B8 (900) LTE


Name Interface
BC0 (800) CDMA
BC4 (Korean PCS) CDMA