By 1970 automatic switching facilities were in use in Pyongyang, Sinŭiju, Hamhŭng, and Hyesan. A few public telephone booths were beginning to appear in Pyongyang around 1990. Ordinary citizens do not have private telephone lines. There are international connections via Moscow and Beijing, and in late 1989 international direct dialing service was introduced from Hong Kong. A satellite ground station near Pyongyang provides direct international communications using the International Telecommunications Satellite Corporation (Intelsat) Indian Ocean satellite. A satellite communications center was installed in Pyongyang in 1986 with French technical support. An agreement to share in Japan's telecommunications satellites was reached in 1990. North Korea joined the Universal Postal Union in 1974 but has direct postal arrangements with only a select group of countries.
According to the CIA World Factbook, the telephone system is inadequate and no telephone directories are available. There were 1.18 million telephone main lines in use in 2007.
In November 2002, mobile phones were introduced to North Korea and by November 2003, 20,000 North Koreans had bought mobile phones. On May 24, 2004 however, mobile phones were banned. North Korea supposedly still has a mobile network in Pyongyang which is open for government officials only. Foreigners are not allowed to use (and also until recently to keep) mobile phones in North Korea, although certain high profile visitors such as leadership from the New York Philharmonic which visited North Korea in February 2008, were given rental phones to facilitate direct international communications.
In December 2008, a mobile phone service was launched in Pyongyang with current plans to expand coverage to all parts of the country. It is being installed and managed by the Egyptian company Orascom. The official name of the 3G mobile phone service in North Korea is called Koryolink, and is a joint venture between Orascom and the state-owned Korea Post and Telecommunications Corporation (KPTC). There has been a large demand for the service since it was launched, even among ordinary citizens. In November 2009, Time Magazine reported that on a recent group tour, the North Korean tour guide had a mobile phone which was a gift from her boyfriend. The foreign joint-venture Daedong Credit Bank in Pyongyang gives a North Korean mobile phone number with their contact details.
Current domestic North Korean subscriptions to the Koryolink mobile phone network are around 185,000.
Rebecca MacKinnon, a research fellow at the Berkman Center for Internet and Society at Harvard, says that Chinese cellphones have reached North Korea through the black market in spite of government efforts to ban them. As the number of people using them grows, it is likely that cellphones that are web-enabled through Chinese servers will become more common. In addition, South Korean companies such as Samsung have been increasing their market share in China, which will likely lead North Koreans to have Korean-language information through their cellphones.
Broadcasting in North Korea is tightly controlled by the state and is used as a propaganda arm of the ruling Korean Workers' Party. The Korean Central Television station is located in Pyongyang, and there also are stations in major cities, including Chŏngjin, Kaesŏng, Hamhŭng, Haeju, and Sinŭiju. There are three channels in Pyongyang but only one channel in other cities. Imported Japanese-made color televisions have a North Korean brand name superimposed, but nineteen-inch black-and-white sets have been produced locally since 1980. One estimate places the total number of television sets in use in the early 1990s at 250,000 sets.
Visitors are not allowed to bring a radio. As part of the government's information blockade policy, North Korean radios and televisions must be modified to only receive government stations. These modified radios and televisions should be registered at special state department. They are also subject to inspection at random. The removal of the official seal is punishable by law. In order to buy a TV-set or a radio, Korean citizens are required to get special permission from officials at their places residence or employment.
North Korea has two AM radio broadcasting networks, Pyongyang Broadcasting Station (Radio Pyongyang) and Korean Central Broadcasting Station, and one FM network, Pyongyang FM Broadcasting Station. All three networks have stations in major cities that offer local programming. There also is a powerful shortwave transmitter for overseas broadcasts in several languages.
The official government station is the Korean Central Broadcasting Station (KCBS), which broadcasts in Korean. In 1997 there were 3.36 million radio sets.
North Korea's first Internet café opened in 2002 as a joint venture with South Korean internet company Hoonnet. It is connected via a line to China. Foreign visitors can link their computers to the Internet through international phone lines available in a few hotels in Pyongyang. In 2005 a new internet café opened in Pyongyang, connected not through China, but through the North Korean satellite link. Content is most likely filtered by North Korean government agencies. In 2003 a joint venture called KCC Europe between businessman Jan Holterman in Berlin and the North Korean government brought the commercial Internet to North Korea. The connection is established through a satellite link from North Korea to servers located in Germany. This link ended the need to dial ISPs in China.