Know the name behind the call with Smart CNAM API.
Smart CNAM API
Smart CNAM API uses modern technology to validate a phone number and provide the name of the person or business to which it belongs. We provide best-in-class data accuracy and coverage for optimal caller identification.
Problems Customers Face with Traditional CNAM
Limited Coverage
After filtering out low-quality placeholder data like “wireless caller”, coverage is around 50%. This limitation can result in unidentified callers or missing caller information.
Character Limit
The 15-character string makes parsing difficult and provides minimal value for businesses and end consumers.
Outdated Information
The legacy CNAM product is outdated, leading to slow response times and stagnant innovation.
Features
Parsed Name Details
Receive first, middle and last names associated with the caller.
Person vs. Business Classification
Know if you are interacting with a person or business.
Validity Check
Determine whether a number is valid (i.e., assigned to a carrier).
Normalized Phone Parsing
Convert the number string into properly formatted phone numbers.
Benefits
Trestle’s Smart CNAM API offers several benefits. Here are some key advantages of using our CNAM lookup:
Improved Accuracy and Coverage
Trestle’s Smart CNAM API provides unparalleled name accuracy and coverage compared to traditional CNAM, which is typically outdated information and muddled with filler.
Caller Identification
Smart CNAM API allows businesses to identify the name of the person or business associated with an incoming phone call. This information can help agents more efficiently handle calls and deliver an optimal customer experience.
Confirm Compliance
Smart CNAM API allows businesses to confirm the phone still belongs to the person they intend to reach and that it has not changed hands or been reassigned. This ensures compliance with outbound dialers and text messaging right party contact requirements.
Enhanced Security
Smart CNAM API can be useful for detecting potential fraudulent calls. By displaying the caller's name, users can identify suspicious callers and protect themselves.

Why Trestle?
- We are dedicated to offering the best combination of coverage and accuracy.
- We take pride in being the most responsive data provider you will work with.
- We are committed to handling data with care.