# SK Telecom 3G service phase-out > Live situation record from CLSTR: https://clstr.news/situations/sk-telecom-3g-service-phase-out > Updated: 2026-08-19T23:32:36.000Z. Sources: 5. Developments: 2. SK Telecom has suspended new subscriptions for its 3G mobile service, effective August 20, 2026, marking the start of a gradual phase-out of the network it has operated since 2003. The company cited declining subscriber numbers, reduced traffic, and aging hardware as primary reasons for halting new subscriptions, number portability, and device changes for 3G handsets and LTE devices that do not support HD Voice. To assist the transition, the provider is offering support programs including free device replacements for specific LTE/5G models, subsidies of up to 380,000 KRW, or monthly plan discounts of up to 70% for 24 months. Specific provisions have been established for elderly users (over 65) to maintain access to a ‘New Silver Plan’ (9,900 KRW per month) upon transitioning to LTE or 5G. SK Telecom intends to seek formal service termination approval from the Ministry of Science and ICT. While a final shutdown date has not been determined, the company stated it will continue to maintain the service using spare parts until the official termination. ## Timeline ### 2026-08-19: SK Telecom suspends new 3G subscriptions to begin service phase-out SK Telecom is suspending new 3G subscriptions and initiating a gradual phase-out of its 3G service due to declining usage and aging infrastructure, offering transition support to LTE and 5G. 5 sources. https://clstr.news/cluster/sk-telecom-suspends-new-3g-subscriptions-to-transition-users-to-lte-and-5g ### 2026-07-24: SmarTone to End 3G Service on October 9, 2026 and Offer Free Upgrades SmarTone will terminate its 3G network on 9 Oct 2026, freeing spectrum for 5G; it offers free SIM swaps, device upgrades and extra support for affected users. 2 sources. https://clstr.news/cluster/smartone-to-end-3g-service-on-october-9-2026-and-offer-free-upgrades --- Cite as: SK Telecom 3G service phase-out. CLSTR, https://clstr.news/situations/sk-telecom-3g-service-phase-out