International Revenue Share Fraud (IRSF) test numbers are extremely valuable if used in a hot list to alert CSPs of a possible or pending IRSF attack.
IRSF – Test Number Database (PRISM).
International Revenue Share Fraud (IRSF) test numbers are numbers provided by a reseller to test that a revenue share destination and number range can be connected from a calling location. These test numbers are extremely valuable if used in a hot list to alert CSPs of a possible or pending IRSF attack.
