BICS Number Verification API
Phone number verification and mobile authentication for anti-fraud, KYC and onboarding - validating that a mobile number is real, active, and controlled by the user, including OTP-based flows. Marketed by BICS and delivered across the Proximus Global network as a partner and carrier contract product; access is via contact-sales onboarding rather than the self-serve developer portal, so any request surface here is endpointsModeled, not a published OpenAPI definition.