Top Telecommunications Companies in South Korea
Explore the leading telecommunications companies in South Korea known for delivering reliable services across major cities including Seoul, Busan, and Incheon. This up-to-date directory features trustworthy providers specializing in internet, mobile, and enterprise communication solutions, saving you time searching for verified companies with excellent customer reviews.
- SK Telecom – South Korea’s largest wireless carrier with extensive mobile and internet services nationwide. Established for over 30 years, SK Telecom is recognized for innovative 5G solutions and extensive network coverage in Seoul and surrounding regions. Certified with multiple industry awards for service excellence.
Website: www.sktelecom.com
Contact: +82-2-6100-2114
Address: 555 Teheran-ro, Gangnam-gu, Seoul, South Korea - KT Corporation – A key player in South Korea’s fixed-line and mobile telecommunications sector, providing advanced internet, IPTV, and 5G wireless services. Operating for over five decades, KT serves metropolitan areas including Seoul, Incheon, and Daejeon with strong customer support and reliable infrastructure.
Website: www.kt.com
Contact: +82-2-2190-0114
Address: 160, Eulji-ro, Jung-gu, Seoul, South Korea - LG Uplus – Specializing in 4G LTE, 5G mobile, and home broadband services, LG Uplus boasts broad coverage especially in South Korea’s major cities. With 20+ years of industry experience, LG Uplus continuously enhances connectivity solutions for residential and corporate customers, widely praised for speedy installations and customer service.
Website: www.lguplus.co.kr
Contact: +82-1544-0010
Address: 345, Pangyo-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, South Korea - CJ HelloVision – A prominent cable TV and internet service provider, offering bundled telecommunications packages in Seoul and Gyeonggi Province. Known for competitive pricing and diverse entertainment options, CJ HelloVision has over 15 years of experience and solid customer satisfaction ratings.
Website: www.cjhellovision.com
Contact: +82-1600-3300
Address: 327, Sangil-ro, Gangdong-gu, Seoul, South Korea - SK Broadband – Internet and IPTV specialist under SK Group, providing high-speed broadband and advanced home networking solutions. Operating for nearly two decades, SK Broadband serves urban and suburban neighborhoods, delivering stable internet connectivity praised by residential and business clients alike.
Website: www.skbroadband.com
Contact: +82-2-2173-7000
Address: 167, Seosomun-ro, Jung-gu, Seoul, South Korea - GiGA Genie (KT subsidiary) – Leading provider of AI-powered smart home and internet services, operating across South Korea. Part of KT Corp, GiGA Genie focuses on integrating telecommunications with AI tech to enhance user experience at home, backed by high customer satisfaction and comprehensive service packages.
Website: www.gigagenie.ai
Contact: +82-2-2190-0114
Address: 160, Eulji-ro, Jung-gu, Seoul, South Korea - Sejong Telecom – Offering cloud communication and VoIP services with a focus on business telecommunications in Seoul and adjacent districts. With more than 15 years in the market, Sejong Telecom provides tailored solutions enhancing office connectivity and telephony integrations.
Website: www.sejongtelecom.com
Contact: +82-2-6940-2900
Address: 27, Yeoksam-ro 7-gil, Gangnam-gu, Seoul, South Korea - Dacom – A well-established provider of enterprise communication services including data networks, cloud, and managed IT. Active for over 30 years, Dacom services Seoul and the greater metropolitan area, catering to corporate clients seeking reliable network infrastructure.
Website: www.dacom.com
Contact: +82-2-2173-9100
Address: 180, Eulji-ro, Jung-gu, Seoul, South Korea - SK Telink – Part of SK Group specializing in international telecom services, including wholesale and enterprise communication solutions, with an operational base in Seoul. SK Telink has grown rapidly in the last decade, embracing cloud telecom and VoIP services.
Website: www.sktelink.com
Contact: +82-2-6100-2500
Address: 24, Eulji-ro 5-gil, Jung-gu, Seoul, South Korea - Hanaro Telecom (KT affiliate) – Provides high-quality broadband internet and IPTV services primarily targeting residential customers across Seoul and South Korea. With a focus on speed and reliability, Hanaro Telecom operates under KT, known for competitive pricing and strong network performance.
Website: www.hanaro.com
Contact: +82-2-3457-6700
Address: 67, Sapyeong-daero, Seocho-gu, Seoul, South Korea - Miracom – Telecommunications infrastructure and IT services company based in Seoul, specializing in system integration and network services for enterprise customers. Over 20 years of experience serving South Korea’s tech and telecom sectors.
Website: www.miracom.co.kr
Contact: +82-2-3452-8000
Address: 77, Eulji-ro, Jung-gu, Seoul, South Korea - Dreamline – Telecom carrier known for VoIP, international calling, and broadband services, Dreamline operates mainly in Seoul with a growing client base. Recognized for cost-effective packages for both individual and business users.
Website: www.dreamline.co.kr
Contact: +82-2-3273-7100
Address: 10, Yeouido-dong, Yeongdeungpo-gu, Seoul, South Korea - LG HelloVision – A subsidiary of LG Uplus, delivering cable TV and internet services especially in Seoul and Gyeongi Province neighborhoods. Known for combining entertainment with reliable broadband for over 15 years.
Website: www.hellovision.co.kr
Contact: +82-1600-0000
Address: 82, Gongdeok-ro, Mapo-gu, Seoul, South Korea - OnNet Telecom – Focused on delivering business telecommunications solutions including leased line and cloud-based services. OnNet Telecom has more than a decade of providing secure network infrastructure mainly in Seoul’s tech districts.
Website: www.onnet.co.kr
Contact: +82-2-6008-2700
Address: 16, Teheran-ro 4-gil, Gangnam-gu, Seoul, South Korea - SK Fimm – A communication solutions provider operating under SK Telecom focusing on specialized enterprise telecom services such as SIP trunking and managed VoIP. Established in 2001, serving Seoul-based corporations.
Website: www.skfimm.com
Contact: +82-2-3410-5100
Address: 81, Olympic-ro 35-gil, Songpa-gu, Seoul, South Korea - E1 Networks – Provides data center, cloud, and network integration services in South Korea, serving enterprise clients with high-speed telecom connectivity. Based in Seoul with proven experience in large-scale network deployments.
Website: www.e1networks.co.kr
Contact: +82-2-3453-8700
Address: 100, Hangang-daero, Yongsan-gu, Seoul, South Korea - Telecube – Specializes in virtual office and telecom solutions with integrated cloud phone systems, servicing Seoul and nearby regions. Known for flexible telecommunication setups for startups and small businesses.
Website: www.telecube.co.kr
Contact: +82-2-6338-1700
Address: 53, Eonju-ro, Gangnam-gu, Seoul, South Korea - IP Telecom – Established telecom provider offering VoIP, mobile, and broadband services with a decade of experience in Seoul’s telecommunications market. Focused on affordable and reliable communication services for local customers.
Website: www.iptelecom.co.kr
Contact: +82-2-3451-3450
Address: 15, Teheran-ro, Gangnam-gu, Seoul, South Korea - Cloud Telecom – Offers cloud-based telecom applications and managed network solutions across South Korea, with particular presence in Seoul’s business districts. Known for scalable telecommunication services and modern infrastructure.
Website: www.cloudtelecom.co.kr
Contact: +82-2-3457-6701
Address: 78, Seocho-daero, Seocho-gu, Seoul, South Korea - Anycall Telecommunications – Korean-based telecom reseller specializing in mobile plans from major carriers and offering customized solutions for individuals and businesses in Seoul. Operational since early 2000s with strong customer service.
Website: www.anycalltelecom.co.kr
Contact: +82-2-3456-7800
Address: 202, Jong-ro, Jongno-gu, Seoul, South Korea - DigiTel Korea – Provides telecommunications consulting and custom network solutions focusing in Seoul and Gyeonggi Province. Known for professional service and strong technical support since 1998.
Website: www.digitelkorea.co.kr
Contact: +82-2-2274-9000
Address: 45, Sejong-daero, Jung-gu, Seoul, South Korea
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