## What is Caller ID Name (CNAM)?  
**Caller ID Name (CNAM)** is a telephony feature used in the U.S. to display the registered name—person or business—associated with a phone number during an incoming call. It relies on telecom-managed Line Information Databases (LIDBs), where termination carriers perform lookups to retrieve the name.

| Enrichment | Input fields | Signals returned | Coverage | Best for |
| --- | --- | --- | --- | --- |
| **CNAM** | U.S. phone number | - Registered caller name<br>- CNAM risk signal | U.S. only | Caller identity validation, fraud detection, case enrichment |

## How it works  
- **Telecom data sources**: CNAM records come from Line Information Databases (LIDBs) managed by telecom providers or aggregators.  
- **Lookup on call termination**: Termination carriers perform a lookup at call setup to fetch the caller’s registered name.  
- **Integration in RiskOS™**: Socure uses CNAM lookups as an enrichment to flag inconsistencies between user-provided identity and telecom-sourced records.

## What you can do with CNAM  
- Strengthen **identity verification** when combined with enrichments like Phone Verification or Sigma Identity.  
- Improve **fraud detection** by flagging mismatches between input identity data and CNAM records.  
- Support **risk decisioning workflows** by enriching evaluations with caller identity.  
- Enhance **case management and investigations** with an additional identity signal for analysts.

## Unique features  
- **Registered caller identity**: Displays the authoritative name tied to a phone number.  
- **Telecom-sourced data**: Pulled from LIDBs, not user-supplied metadata.  
- **Cross-signal consistency**: Compare against other enrichments to spot anomalies.  
- **Operational auditability**: Log CNAM results alongside other evaluation signals.