place. Telstra operates over 7,400 Next G Base Stations. Internet Wholesale Telstra Wholesale provides products such as Data, Mobile, Voice, and other Facilities (including Co-location and Duct Access) to other companies and organisations for re-sale. Telstra Wholesale also provides operational support for its customers, and facilities for international customers such as International Data Transport and IP Transport. Due to Telstra's position as Australia's incumbent telecommunications provider, Telstra Wholesale is the incumbent and dominant wholesaler of ADSL services to other Internet Service Providers. Telstra installed the first DSLAMs in exchanges prior to 2000, and began wholesaling access in late 2000. Telstra Wholesale has a comprehensive network of ADSL DSLAMs (the largest in Australia) and allows competitors access to each Telstra DSLAM at up to ADSL2+ speeds if available, and at ADSL1 speeds should 2+ be unavailable. Since 2013, Telstra has wholesaled its 3G and 4G network. However the wholesale product only gives access to 7000 of Telstra's over 8000 base stations, and does not include access to its faster 4GX and 5G networks. Retail internet Telstra provides internet services for personal and business clients, through its internet service provider (ISP), BigPond. BigPond provides internet products over various delivery methods, including ADSL, Cable Internet, Dialup, Satellite, and Wireless Internet (through the Next G network). At the end of the 2007 financial year, BigPond had over two million broadband subscribers. In 2007 a survey of 14,000 people by PC Authority magazine found BigPond users rated poorly for customer service, and less than a third considered their service value for money. However, BigPond argued that the survey's structure had encouraged people to provide extreme opinions. In January 2009, Telstra was ranked as the top Australian ISP in terms of performance by Epitiro. Since 2013, the BigPond brand has been discontinued and merged with Telstra. Cable internet Cable – BigPond is Australia's largest provider of Cable Internet access, which covers parts of Australia's main cities (Melbourne, Brisbane, Perth, Sydney, Adelaide and the Gold Coast). Speeds available are 'Turbo' (8 Mbit/s downstream, 128 kbit/s upstream), 'Elite' (30 Mbit/s down, 1 Mbit/s up) and 'Ultimate' (100 Mbit/s down, 2 Mbit/s up). Telstra owned and operated the largest cable internet Hybrid Fibre cable network in Australia. Telstra Cable operates in selected cities and areas of Australia including (Melbourne, Brisbane, Canberra, Sydney, Perth, Adelaide and the Gold Coast), providing downstream speeds of up to 30 Mbit/s in selected areas.