SIM Verification
When to use it
SIM Verification confirms a customer's ownership of a phone number, and surfaces telco-held information about that SIM for verification purposes — useful when a phone number itself is part of your identity or risk check (e.g. confirming a loan applicant controls the number they registered with, or that their SIM/subscriber profile matches other identity data you hold).
Flow
- Send an OTP to the customer's phone number. The response also identifies the telecom carrier that owns the number.
- Verify the OTP the customer entered, confirming they control that phone number.
- Verify subscriber information — a separate check that compares identity details you hold (ID number, name, date of birth) and account-activity signals against what the telecom carrier has on file, returning a match / no-match / no-data verdict for each item checked. See Verify Information for the full list of checkable fields.
Sending and verifying the OTP is the ownership-confirmation step, and it's a prerequisite: a customer must complete it for a phone number before you can verify subscriber information against that number. If that verification session has since expired, the customer needs to send and verify a new OTP before you try again.