How WhoCalledCheck Works
Understand how our threat analysis scanning engine parses unknown phone signals to evaluate potential caller risks.
Format Standardization & Parsing
When you enter a phone number, our engine standardizes it using E.164 specifications. This separates the country dialing code, checks digits allocations, and ensures format validity rules are met.
Registry & Geolocation Check
We cross-reference ranges against global carrier assignments and national telecom databases to identify origin carrier registries, area codes, and standard regional locations.
Threat Indicator Scoring
The engine scans classifications (VoIP virtual numbers, landlines, premium ranges) and matches indicators in user threat reports or anti-spam registries to evaluate risk markers.
Safety Report Generation
An unlocked report compiles these signals into a final score (0-100), summarizes classifications, and lists security recommendations to guide callback decisions.
Boundary Guidelines (What We Do Not Provide)
In compliance with strict privacy guidelines, WhoCalledCheck is designed as an unknown phone warning system, NOT a tracking or tracing directory. The system does not support:
- Real-time GPS tracking or positioning
- Private call log recordings or text access
- Personal backgrounds, credit files, or FCRA reports
- Guaranteed identity owner validation