in a few cases threats and intimidation, to pressure the media not to publicize certain issues. The law criminalizes libel, and libel laws are used to block or punish critical reporting and commentary. Occasional incidents of self-censorship by journalists occurred, particularly in government-controlled media. Senegal is a popular destination for amateur radio operators from Western and European points of origin who participate in "DXpeditions". A DXpedition is essentially a holiday planned for the purpose of making contacts with other amateur radio enthusiasts around the world. These short duration trips also help to promote interest in radio sports among the local residents who might otherwise not have the opportunity to experience radio communications for recreational and experimental purposes. More information may be obtained through the American Radio Relay League at www.arrl.org (K4YZ). Telephones There are currently four cellular companies: the former Alizé, now Orange owned by Sonatel; Tigo/Sentel(now under the French Free Mobile brand), 75 percent owned by Millicom International Cellular; Hayo/CSU; and Expresso/Sudatel. Orange has roughly two thirds of the cellular market, but Tigo is rapidly gaining market share. In November 2007 a third mobile license was awarded to Sudan's Sudatel for $200 million. The license permits Sudatel to offer fixed line telephone and Internet service (for which Sonatel had a monopoly). In 2012 a fourth license was awarded to CSU/Hayo, permitting them to offer mobile, fixed, wifi, and wimax services. Calling code: +221, international calls to most countries can be dialed directly. International call prefix: 00 Main lines: 338,200 lines in use, 110th in the world (2012); 224,600 lines in use (2002). Mobile cellular: 11.5 million lines, 73rd in the world (2012); 3.2 million lines (2007). Communications cables: South Atlantic 3/West Africa Submarine Cable/SAFE (SAT-3/WASC/SAFE) fiber-optic cable provides connectivity to Europe and Asia, while the Atlantis-2 fiber-optic cable provides connectivity to South America. Satellite earth stations: One Intelsat (Atlantic Ocean). Internet Internet service is widely available in Dakar and other towns either by private subscription or through Senegal's extensive network of "telecentres" and Internet cafés. The Asymmetric Digital Subscriber Line (ADSL) broadband subscriber base is growing rapidly, though the penetration rate is less than 1 percent. Top-level domain: .sn Internet users: 68.5%, or approximately 10.4 million users in 2018 2.5 million users, 84th in the world; 19.2% of the population, 145th in the world (2012). 1.8 million users, 76th in the world (2009). Fixed broadband: 94,548 subscriptions, 103rd in