Picture choosen by: Mr.Andrew Lee Communications in Hong kong Hong Kong has communications facilities as modern as anywhere in the world. The cost, particularly for mobile phone users, is one of the cheapest globally.

Post
Postal services are efficient and of high quality. You will find post offices in major city areas and outside of opening hours, coin-operated stamp vending machines. You can buy stamps (sets of ten stamps of $1.4, $2.4, $3) from many convenience stores such as 7-Eleven or
Circle K (OK). It is relatively inexpensive to ship your purchases back home from any Post Office.

Internet Access
Hong Kong has one of the highest penetrations of broadband in the world, and almost all homes and businesses are connected to the Internet through high-bandwidth broadband connections. Cyber cafes are widespread in the city, but they are generally geared towards
gamers and some require a deposit, usually around $100. For simple internet access, you may want to go to free computer terminals in cafes such as Pacific Coffee Company and sometimes Starbucks. Free terminals can be found in some public areas, such as shopping malls, the airport, the MTR (e.g. Wan Chai station, Central Station, Tsim Sha Shui Station) and public libraries. .
WiFi
Free Wi-Fi access is available at most government premises including the airport and public libraries; see the Hong Kong Government Wifi website for exact locations. Twenty minutes of free daily Wi-Fi is available at Starbucks and most McDonald's; no purchase is necessary.
PCCW and Y5ZONE sell Wi-Fi access for a flat daily, weekly or monthly fee ($158 and $98 per month for PCCW and Y5ZONE, respectively) charged on your credit card. Both services are accessible at many fast food restaurants and coffee shops. Although more expensive, PCCW's signal is more ubiquitous and can also be received in many MTR stations, convenience stores and phone booths. Prepaid Wi-Fi access cards are somewhat expensive in Hong Kong and not worth the trouble unless you don't want to use your credit card to buy a subscription. Most hotels these days, even down market ones, provide Wi-Fi access to their guests.

Telephone
Hong Kong's country-code is 852 (different from mainland China (86) and Macau (853)). Local phone numbers (mobile and landlines) are typically 8 digits; no area codes are used. All numbers that begin with 5, 6 or 9 are mobile numbers, while numbers beginning with 2 or 3 are fixed line numbers. For calls from Hong Kong, the standard IDD prefix is 001, so you would dial 001-(country code)-(area code)-(telephone number). Note that calls to Macau or mainland China require international dialling. For the operator, dial 1000. For police, fire or ambulance services dial 999.
Mobile phones
Hong Kong has a total of 11 different mobile operators, of which CSL is the largest. If you have a GSM handset (GSM 900, 1800) or W-CDMA (UMTS or 3G-GSM) handset, you can purchase a prepaid SIM card to use in your phone. They can be bought for cash at most convenience stores. Cheaper 2G (from any provider) and newer 3G cards (only from 3) are available, but both are relatively inexpensive. If your CDMA handset has a SIM slot, you can pick up the less popular CDMA SIM cards (only from 3), note that the CDMA network is not popular in Hong Kong, so coverage is not as great as that of GSM and W-CDMA (UMTS). A card with a value of around $50 should be sufficient unless you are making international calls or you plan on using data services (3's HSDPA mobile broadband SIM is most likely cheaper at $48 per day than using the hotel's internet connection). Most cards provide standard services such as SMS and voice mail. For the adventurous types, discounted prepaid SIM Cards can be purchased in Ap Liu Street in Sham Shui Po, and "Sin Daat" arcade in Mongkok (Argyle St - close to Lady street). Cheap GSM and 3G phones can be purchased here as well (be careful, some phones sold here are 3G only). Mobile phone numbers have eight digits and begin with 5, 6 or 9. For those on short visits, international roaming is available in Hong Kong onto its GSM 900/1800 and 3G (UMTS/W-CDMA) networks, subject to agreements between operators. For those coming from the mainland, some China Unicom SIMs will provide Hong Kong roaming at purchase time, and China Mobile provides a dual-number service which results in cheaper rates than straight roaming.
Public phones
Payphones are available and $1 is for a local call for 5 minutes usually. Most restaurants, supermarkets and shops will oblige if you ask nicely. Public payphones are becoming more and more difficult to find on streets nowadays, but MTR stations usually have public phones. The airport has a courtesy phone just before you step out of the glassed area after the customs - you cannot go back there once you have left