900 premium-rate numbers

Updated 2026-05-03

900 is a US premium-rate prefix. Calls are billed at rates set by the receiver — often several dollars per minute. Premium rate is legitimate for some services (psychics, technical support, adult content) but it's also abused for scams.

Common 900 scam tactics

'Missed call' callbacks (one-ring style), fake contest wins ('call to claim your prize'), and bait-and-switch tech support ads. The aim is to keep you on the line as long as possible while the meter runs.

Your rights

Under the FTC's 900-Number Rule and the Telephone Disclosure and Dispute Resolution Act, premium-rate providers must disclose costs upfront and you can dispute charges with your carrier.

Red flags

  • Ad or text encouraging you to call a 900 number to 'claim' or 'win'
  • Long hold music after the call connects
  • Vague service description

What to do

  1. Don't call back unknown 900 numbers.
  2. Check your phone bill — your carrier shows the service provider.
  3. Dispute with your carrier and report at reportfraud.ftc.gov.

Frequently asked questions

Can I block 900 numbers?

Yes — most carriers offer a free 'block all 900 numbers' option. Call your provider or check your account settings.