What do the return values of the Phone Verification API mean?

Value Description
validNumberFormat is the number formatted correctly according to the numbering plan?
activeNumber is the number currently assigned to a subscriber?
numberType is the number a mobile number or fixed line?
operatorName who is the home network operator of the subscriber?
operatorCountry in which country is the number registered?
fraudRisk what’s the likelihood of the number being associated with fraud?
outreachReady should a message be sent to this number?