dtac is a Thai GSM mobile phone company offering wireless telecommunications services. It provides 3G, 4G LTE, and 5G services, along with international roaming in 147 countries[1]. Services: Mobile subscriptions, internet access, and roaming. Target Audience: Individuals and businesses in Thailand. Unique Selling Proposition (USP): dtac offers extensive network coverage and competitive pricing, with a focus on enhancing digital life quality[4]. Recently, dtac merged with True Corporation to strengthen its offerings[3].