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Reverse Phone API

Reverse Phone API validates a phone number and provides phone metadata, owner name and their demographics, current and historical addresses, and associated people. Typical use cases for this phone number lookup API include caller identification, call routing, and lead verification and append.


Unlock Powerful Use Cases with Reverse Phone API

Caller Identification

Get details associated with a number to build an agent screen pop, generate post-call analytics, or support call-tracking and attribution models.

Call Routing

Route known and unknown calls to the right agent or sales team member in real-time based on the phone metadata or caller’s demographic and location details.

Lead Verification and Append

Leverage phone metadata and phone subscriber details to remove spam junk leads and append additional data that helps with lead conversion.

Lead Attribution

Leverage up-to-date identity information to connect lead generation data with sales conversions for accurate attribution.

Lead Contactability and Prioritization

Prioritize leads with the best chance of contactability based on if the number is reachable, not disconnected or a temporary number, and belongs to the person who they say they are.


Powerful Identification

Provides the full registered name(s) behind the number.

Address Information

Shows the current address corroborated from 30+ years of address history and details on residence type, deliverability and more.


Includes gender and age-range of registered phone owner and address residents.

Advanced Phone Attributes

Includes line type, carrier, prepaid status, commercial flag and more.

Associated People

Gives a list of related people and/or household members.

Alternate Numbers

Find additional phone numbers for subscriber(s), including mobile numbers and landlines.


Trestle’s Reverse Phone API provides several benefits that can be valuable in various scenarios. Here are some of the key advantages of our reverse phone lookup API:

  • Caller Identification

    Reverse Phone API allows you to identify the caller's information, such as the name, current and historical addresses, associated people, phone carrier and line type, and other details associated with a phone number. This can be particularly useful when you receive calls from unknown numbers or for verifying the identity of callers.

  • Enhanced Customer Experience

    Reverse Phone API can improve customer experiences by providing real-time information about callers. This is especially valuable in call centers or customer support departments where agents can quickly access customer details and provide personalized assistance. It allows for faster and more efficient customer service interactions.

  • Lead Generation and Marketing

    Reverse Phone API can be utilized in lead generation and marketing efforts. By obtaining demographic and contact information associated with phone numbers, businesses can build more comprehensive customer profiles, target specific demographics, and create more personalized marketing campaigns.

  • Improve Operational Efficiency

    Reverse Phone API can help improve operational efficiency by minimizing call center handling time, reducing data entry errors, and effectively capturing consistent customer data.

  • Integration and Automation

    Reverse Phone API can easily be integrated into existing systems. This enables developers to automate processes that require phone number lookups, eliminating the need for manual searches or data entry.

  • Investigation and Research

    Reverse Phone API can be valuable in investigations or research, providing additional information about individuals or organizations associated with a specific phone number. Law enforcement agencies, government, private investigators, or researchers can benefit from this capability when conducting background checks or gathering information.

Why Trestle?