Majority of the fixed land line numbers start with 1. This was done by providing a single toll-free number accessible from mobile and land line. There is a telephone exchange catering to the land line telephones. The municipality has no land line telephone connections. IdleAire also provides access to the Internet, cable television, and land line phone services. It is connected via a land line to China. However, city code is not required between land line calls within the same city. The Communications Department of Saudi Aramco administers land line communications in Dhahran. There is no telephone land line or mobile coverage. Land line numbers elsewhere in the country tend to begin 4xx xxxx. Land line phone numbers in Vietnam follow the format Area Code + Phone Number. Land line numbers in and around the capital area generally begin 5xx xxxx. Fixed land line numbers starts with 2, and Mobile (cellular) phone numbers starts with 6. Land line phone numbers in Kenya follow the format Area Code + Phone Number. A sizable minority of households, do not have land line telephone service, however.