world). IPv4: 10,240 addresses allocated, less than 0.05% of the world total, 1.0 addresses per 1000 people (2012). .so is the Internet top-level domain (ccTLD) for Somalia. After a long absence, the .so domain was officially relaunched in November 2010 by the .SO Registry. Regulated by the national Ministry of Posts and Telecommunication, the registrar offers several domain name spaces geared toward specific communities and interest groups: .so – General usage com.so – Commercial enterprises net.so – Networks org.so – Non-profit organizations gov.so – Government agencies According to the Centre for Law and Democracy (CLD) and the African Union/United Nations Information Support Team (IST), Somalia did not have systemic internet blocking or filtering as of December 2012. The application of content standards online was also unclear. Somalia established its first ISP in 1999. According to the telecommunications resource Balancing Act, growth in internet connectivity has since then grown considerably, with around 53% of the entire nation covered as of 2009. Both internet commerce and telephony have consequently become among the quickest growing local businesses. According to the World Bank, the number of internet users in Somalia rose from only 200 in the year 2000 to 1.8% of the population in 2015, with the percentage continuing to rise. The number of mobile cellular subscriptions rose much faster, from 1.1 per 100 people in 2000 to 52.5 per 100 people in 2015. The Somali Telecommunication Association (STA), a watchdog organization that oversees the policy development and regulatory framework of Somalia's ICT sector, reported in 2006 that there were over half a million users of internet services within the territory. There were also 22 established ISPs and 234 cyber cafes, with an annual growth rate of 15.6%. As of 2009, dial up, wireless and satellite services were available. Dial up internet services in Somalia were among the fastest growing on the continent, with an annual landline growth rate of over 12.5%. The increase in usage was largely due to innovative policy initiatives adopted by the various Somali telecom operators, including free local in-town calls, a flat rate of $10 per month for unlimited calls, a low charge of $0.005 per minute for Internet connections, and a one-time connection fee of $50. Global Internet Company, a firm jointly owned by the major Somali telecommunication networks Hormuud Telecom, Telcom Somalia and Nationlink, was the country's largest ISP. It was at the time the only provider