As of December 2020, 5G coverage by KT in major subway lines in South Korea was at an average of almost ** percent. Out of the different subway lines across the surveyed cities, Daejeon's subway line * had the best 5G coverage.
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Ministry of Science and ICT (South Korea). (December 30, 2020). 5G coverage in subways in South Korea as of December 2020, by line and provider [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 30, 2026, from /statistics/1180364/south-korea-5g-coverage-in-subways-by-line-and-provider/
Ministry of Science and ICT (South Korea). "5G coverage in subways in South Korea as of December 2020, by line and provider." Chart. December 30, 2020. ÌÇÐÄÆƽâ°æ. Accessed July 30, 2026. /statistics/1180364/south-korea-5g-coverage-in-subways-by-line-and-provider/
Ministry of Science and ICT (South Korea). (2020). 5G coverage in subways in South Korea as of December 2020, by line and provider. ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 30, 2026. /statistics/1180364/south-korea-5g-coverage-in-subways-by-line-and-provider/
Ministry of Science and ICT (South Korea). "5g Coverage in Subways in South Korea as of December 2020, by Line and Provider." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 30 Dec 2020, /statistics/1180364/south-korea-5g-coverage-in-subways-by-line-and-provider/
Ministry of Science and ICT (South Korea), 5G coverage in subways in South Korea as of December 2020, by line and provider ÌÇÐÄÆƽâ°æ, /statistics/1180364/south-korea-5g-coverage-in-subways-by-line-and-provider/ (last visited July 30, 2026)
5G coverage in subways in South Korea as of December 2020, by line and provider [Graph], Ministry of Science and ICT (South Korea), December 30, 2020. [Online]. Available: /statistics/1180364/south-korea-5g-coverage-in-subways-by-line-and-provider/
