旅行準備指南 · 通訊
電源・通訊・SIM
※ 通訊環境可能因地區和時期而異。
⚡110V / 60Hz
🔌Type A / B(扁平2孔)
🔄從日本/美國出發不需要轉接頭
💡美國領土—插座與美國相同。
電信業者: GTA, IT&E, Docomo Pacific
📶Available
🏢Airalo, Ubigi, T-Mobile eSIM (US roaming)
💰$8-25 for 1-10GB / 7-30 days
💡US eSIM plans from T-Mobile include Guam; international eSIMs also work.
📡good
🏨Fast and free in most hotels
☕Available in malls, cafes, and some public areas
💡Tumon tourist area has good WiFi coverage in hotels and restaurants.
🔒none
🚫None — all services freely accessible (US territory)
🛡️不需要VPN。
💡As a US territory, Guam has the same internet freedom as the mainland US.
🚗Stroll Guam (local shuttle), rental cars
🗺️Google Maps, Apple Maps
💬iMessage, WhatsApp, LINE (Japanese tourists)
💡Rental car is essential; limited public transit available.
📞+1-671 (Guam)
🆘911 (Police, Fire, Ambulance)
📲Dial 011 + country code + number for international calls
💡Uses US phone system; domestic US calls dial 1 + area code + number.