Opening a new chapter with the world's first 4G LTE international roaming service

CSL launched the world’s first 4G LTE international roaming service in 2012 (Press Release) and continues to extend its coverage destinations. With the launch of 4G LTE international roaming between Australia and South Korea, 1O1O members can now seamlessly roam in these regions and enjoy a consistent 4G experience, enabling efficient multi-tasking and rich content data applications.

Without any new settings, service registration or additional roaming fees, you can now enjoy the benefits of the new 4G LTE roaming service. including high-speed uploads, downloads, media streaming and video conferencing. The launch of 4G LTE international roaming enables customers to use their own SIM cards during the trip.

CSL will continue to partner with operators in other countries and regions so you can enjoy our high quality mobile communication service around the world.