The overall infrastructure of Malaysia is one of the most developed in Asia and ranked 8th in Asia and 25th in the world. Malaysia is ranked 19th in the world for its quality roads, quality of port infrastructure and quality of air transport infrastructure but ranked 39th in quality of electricity supply. Its telecommunications network is second only to Singapore's in Southeast Asia, with 4.7 million fixed-line subscribers and more than 30 million cellular subscribers. The country has seven international ports, the major one being the Port Klang. There are 200 industrial parks along with specialised parks such as Technology Park Malaysia and Kulim Hi-Tech Park. Fresh water is available to over 95 per cent of the population. During the colonial period, development was mainly concentrated in economically powerful cities and in areas forming security concerns. Although rural areas have been the focus of great development, they still lag behind areas such as the West Coast of Peninsular Malaysia. The telecommunication network, although strong in urban areas, is less available to the rural population.