Thailand SIM Card Guide 2025 Best SIM for Tourists & Students Getting a SIM card in Thailand is one of the first things every traveller, student, or long stay visitor should do. Having a Thai number makes everything easier banking, Grab rides, food delivery, renting rooms, and even receiving OTPs for your visa process. This 2025 guide will show you the best SIM options, prices, documents , and what you should choose based on your stay. 🇹🇠1️⃣ Which SIM Cards Are Available in Thailand? Thailand has three major mobile networks : Network Best For Notes AIS Best overall coverage Reliable in all cities & islands DTAC Budget-friendly Good speeds, cheap packages TRUE (TrueMove H) Fast 5G & great city coverage Best for Bangkok users All networks offer prepaid SIM cards at airports, 7-Eleven stores, malls, and metro stations. 🛬 2️⃣ Where to Buy Your SIM Card? You can buy a SIM from: Airports (Suvarnabhumi, Don Mueang) 7-Eleven (most common & easiest) ...