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Official Languages: Khmer

English is commonly spoken in tourist areas, hotels, and by many younger service workers, but less so in rural areas and at small local businesses.

Mobile Network: Mobile coverage is generally good in cities and major tourist routes, with widely available 4G. Speeds and reliability can drop in remote islands, border zones, and rural provinces.

Roaming/SIM/eSIM: Roaming is convenient for short stays but is often the most expensive option. A local SIM is usually the best value for stays of several days or more and is easy to buy in cities and airports with passport registration commonly required. eSIM can be the simplest option if your phone supports it, especially for arriving connected immediately, but local SIM plans may offer better value or larger data packages.

Cards are accepted at many hotels, upscale restaurants, supermarkets, and some tourist businesses in Phnom Penh, Siem Reap, and other major hubs. Cash is still commonly needed for markets, small restaurants, transport, rural areas, and many everyday purchases.

Tipping is not mandatory, but it is appreciated in tourist settings. Small tips are common for guides, drivers, hotel staff, and spa workers. In restaurants, rounding up or leaving around 5 to 10 percent is appreciated if a service charge is not already included.

Plug Type: Type A, Type C, Type G

Voltage: 230 V, 50 Hz

Adapter: Possibly. Many hotels use mixed socket types, but travelers commonly need a universal adapter because socket style is not fully consistent.