Compare coverage, data plans, and services from Cambodia's leading mobile operators. Find the best SIM card for tourists, expats, or residents.
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5GCellcard Cambodia
Leading mobile network with best 4G and 5G coverage across Cambodia. Cellcard offers reliable connectivity with the largest network footprint, 5G in Phnom Penh and Kandal, and competitive data plans.
5GSmart Axiata Cambodia
Smart Axiata is more than a telecommunications provider—a dedicated partner in building a sustainable and inclusive future for Cambodia. A subsidiary of Axiata Group Berhad, Smart has entered the 5G era (Cambodia's first live 5G showcase in 2019, official launch 2026) and is a trusted innovator with over 1,000 professionals. Sustainability lies at the core of operations. Live. Life. Be Smart.
5GMetfone Cambodia
Reliable network with 4G and 5G coverage (5G in Phnom Penh and major cities), competitive rates, and excellent customer service. Part of Viettel Group.
Seatel (Yes) Cambodia
Seatel, formerly Yes Telecom, offers mobile and broadband services across Cambodia.
Compare all providers side-by-side with our detailed comparison tool.
All three major providers (Cellcard, Smart, and Metfone) have extensive coverage in urban areas. Metfone generally has the widest rural coverage due to government backing, while Cellcard and Smart excel in 4G/5G speeds in cities. Coverage can vary by location.
SIM card registration requires a valid ID (passport for foreigners, national ID for locals). Visit any authorized dealer or provider store, provide your ID for verification, and the SIM will be registered to your name. This is a legal requirement in Cambodia.
Yes, Cambodia supports Mobile Number Portability (MNP). You can transfer your existing number to a new provider by visiting their store with your ID. The process typically takes 1-3 business days and may involve a small fee.
Prepaid plans require top-ups before use and offer flexibility without contracts. Postpaid plans bill you monthly and often include more data and benefits but require registration and credit checks. Most tourists and short-term visitors prefer prepaid.
Yes, Cambodian SIM cards work with any unlocked GSM phone. Make sure your phone is unlocked before arriving. All major providers use standard SIM sizes (nano, micro, standard) and support both 4G LTE and 5G networks.
USSD (Unstructured Supplementary Service Data) codes are short numbers you dial on your phone to access mobile services like balance checks, top-ups, and data packages. Open your phone dialer, enter the code (e.g. *123#), and press call. A menu will appear—follow the on-screen prompts to complete your request. Each provider has different codes; check the provider detail page for the full list.
