Before the popularity of the internet, business telephone numbers in the United Kingdom could be searched by accessing a remote computer terminal by modem. The initial prototype of this was superseded in 1990 with a commercial service. This service allowed searches via Name, Business classification and locality for business listings and a free text field was provided to allow "unstructured text" searching of Adverts. This dialup service was available via Prestel and "BT Gold" services. The service Electronic Yellow Pages was superseded in the mid-1990s by the internet service www.yell.com. A similar system called "Phonebase" for published residential phone numbers was discontinued in the 1990s, being superseded by a web-based search interface.