Adult chat lines (phone sex) and tech support are a very common use of premium-rate numbers.
Earlier, 976 numbers used 976 as a local prefix (970 or 540 in some markets like New York state), though it was not assigned to a specific telephone exchange like other prefixes.
These numbers were dialed as any other number, such as 976-1234.
Due to complaints from parent groups about kids not knowing the dangers and high cost of such calls, the FTC enacted new rules and such commercials ceased to air on television as of the mid-1990s.
Using 900 numbers for adult entertainment lines was a prevalent practice in the early years of the industry.
Therefore, in contrast to North America where customer service numbers are typically free of charge to the caller, consumers in Europe often used to pay a premium above the cost of a normal telephone call.
The EU Consumer Rights Directive 2011/EU/83 came into force on 13 June 2014. Implementation detail, and hence the level of success in achieving this aim, varies considerably from country to country.
This type of scam was especially popular in the late '80s to early '90s in the United States before tougher regulations on the 900 number business forced many of these businesses to close.
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").
Another now-uncommon premium-rate scam involves television programming that induces young children to dial the number, banking on the notion that they will be unaware of the charges that will be incurred.