This practice continues, along with the use of these numbers for things such as software technical support, banking access, and stock tips.
Adult entertainment 900 numbers have been largely absent from AT&T and MCI since 1991.
Premium-rate telephone numbers are telephone numbers for telephone calls during which certain services are provided, and for which prices higher than normal are charged.
Unlike a normal call, part of the call charge is paid to the service provider, thus enabling businesses to be funded via the calls.
Numbers with the 900 area code were those which were expected to have a huge number of potential callers, and the 900 area code was screened at the local level to allow only a certain number of the callers in each area to access the nationwide long distance network for reaching the destination number.
A 1-900 telephone number, in the North American Numbering Plan, has the form 1-900-###-####, and is often called a 900 number or a 1-900 number ("one-nine-hundred").
Diplomatic services, such as the US Embassy in London or the UK Embassy in Washington, have also charged premium rates for calls from the general public.
In many European countries, for example France, Germany and the United Kingdom, it was common for organisations to operate customer service lines on premium-rate numbers using prefixes that fall outside the scope of the country's premium-rate number regulations.
Telephone companies typically offer blocking services to allow telephone customers to prevent access to these number ranges from their telephones.
In some jurisdictions, telephone companies are required by law to offer such blocking.