900 number
noun[C]
uk/ˌnaɪnˈhʌn.drəd ˌnʌm.bər/us/ˌnaɪnˈhʌn.drəd ˌnʌm.bɚ/in the US, anexpensivephonenumberthatbeginswith 900,providedbycompaniesofferingservicessuch aschatlines
（美国的）900号码（由提供电话聊天之类服务的公司开通的以900开头的高收费电话号码）Communications - by telephone
- 3G
- 4G
- 5G
- aeroplane mode
- airplane mode
- area code
- autodial
- dialling tone
- Directory Enquiries
- helpline
- phone mast
- pick
- picksomeone/somethingup
- pocket dial
- prank caller
- ring
- roam
- telecoms
- telephone
- transfer