International telephone calls, fax and e-mail access are all available in Phnom Penh and Siem Reap. Airmail to Europe takes 4-5 days, and to the USA 7-10 days.

Telephone and Fax are available. Country code: 855. Phnom Penh code: 23. Most big hotels have IDD lines, but calls are expensive. Public phones utilizing prepaid phone cards are now common in Phnom Penh and Siem Reap, with the cards on sale at the post office, most hotels, and supermarkets.