Automatic number identification (ANI)

Automatic number identification (ANI) is a telecommunication feature that automatically captures a caller’s phone number when an incoming call reaches a contact center. ANI helps identify who is calling before an agent answers, enabling smarter routing, faster authentication and personalized service. Unlike caller ID, ANI data is transmitted through the network, making it more reliable for enterprise systems.

“Voice used to be the first — and often only — way for customers to engage when they needed support or service. Even though customers have embraced an array of options with digital channels, self-service and bot-led experiences, voice isn’t going anywhere. And what customers expect from voice has evolved.

Customers have grown accustomed to the speed and 24/7 convenience of digital engagement. They expect the same efficiency when speaking to an agent. They won’t accept being put on a lengthy hold, being transferred to a different agent or having to repeat themselves. They expect a quick, nearly effortless resolution.

To meet these customer expectations, you need to modernize your approach to voice.”

Ricardo Solano
WEM Innovation Solution Lead, Genesys

Automatic number identification use cases for enterprises

The most common enterprise-level use cases for automatic number identification include:

  • Streamlining caller authentication
  • Enhancing intelligent call routing
  • Supporting analytics and performance insights
  • Detecting fraud and managing security
  • Integrating ANI with AI and CRM systems

1. Streamlining caller authentication

Enterprises use ANI in call centers to verify customer identity quickly and securely. When a call comes in, the system matches the ANI number to existing records, allowing agents to greet customers by name or bypass manual verification steps. This reduces average handle time and improves both agent efficiency and customer experience.

2. Enhancing intelligent call routing

With automatic number identification, contact centers can automatically route calls based on known customer data. For example, repeat callers can be directed to the same agent for continuity, or high-value customers can be prioritized for faster service. This data-driven routing improves first-contact resolution and supports personalized engagement strategies.

3. Supporting analytics and performance insights

ANI data provides a valuable foundation for operational analytics. Enterprises can analyze incoming call patterns, identify frequent callers and track regional trends. These insights help refine staffing models, optimize self-service flows and align resources with customer demand — all critical for large-scale contact centers.

4. Detecting fraud and managing security

Automatic number identification adds a layer of protection by helping detect unusual or high-risk call behavior. Calls from unknown or blocked numbers can trigger additional verification or routing to specialized teams. This safeguards sensitive customer data and enhances trust across service channels.

5. Integrating ANI with AI and CRM systems

Modern platforms integrate ANI automatic number identification with customer relationship management (CRM) tools and AI-powered systems. This connection enables proactive service — such as personalized greetings, automatic account retrieval and AI-assisted recommendations — turning every inbound call into a contextual, high-value interaction.

Optimize caller identification with Genesys Cloud and ANI

Deliver faster, more personalized service with automatic number identification built into the Genesys Cloud™ platform. With AI-powered routing, real-time insights and secure integrations, your contact center can identify customers instantly and create seamless, data-driven interactions across every channel.

See how Genesys Cloud transforms ANI into an intelligent advantage — request a demo today.