0900 number - definition and synonyms

noun [countable] 

Your browser doesn’t support HTML5 audio

/ˌəʊ naɪn ˈhʌndrəd ˌnʌmbə(r)/
singular0900 number
plural0900 numbers
  1. in the UK, a telephone number beginning with 0900 that is expensive to use and is used, for example, for calling a television programme to vote