Trestle - Identity Data Enrichment and Validation APIs Trestle - Identity Data Enrichment and Validation APIs Trestle - Identity Data Enrichment and Validation APIs Trestle - Identity Data Enrichment and Validation APIs
  • Products
        • Enrichment

        • Reverse Phone APIGLOBAL
        • Verify and enrich phone numbers
        • Reverse Address API
        • Verify and enrich address information
        • Caller Identification API
        • Identify and enrich caller information
        • Add-Ons

        • Litigator Check
        • Identify phone numbers associated with serial litigators
        • Email Deliverability
        • Confirm email inboxes accept mail in real-time
        • Spam Check
        • Flag phone numbers tied to high-risk calling activity
        • Email Age Score
        • Score how long an email has existed
        • Validation & Verification

        • Phone Validation APIGLOBAL
        • Validate phone numbers and identify disconnected numbers
        • Real Contact API
        • Verify phone, email, and address information
        • Address Validation API
        • Validate and normalize addresses
        • Assess Risk

        • Decision Console
        • Optimize identity verification for manual review
        • Decision Signals API
        • Automate identity verification for risk decisioning
        • Start using Trestle products today

          Get started for free—no credit card required

          Start Your Free Trial

  • Solutions
        • Industries

        • B2B Contact Data
        • eCommerce
        • Insurance
        • Lead Generation
        • Real Estate
        • Communications
        • Use Cases

        • Verify and Prioritize Leads
        • Outbound Dialing Optimization
        • Assess Risk And Prevent Fraud
        • Inbound Call Routing and Verification​
        • Signup and Onboarding​
        • Optimize AI Voice Agents
        • Start using Trestle products today

          Get started for free—no credit card required

          Start Your Free Trial

  • Pricing
  • Resources
        • API Documentation
        • Blog
        • Knowledge Base
        • Case Studies
        • Glossary
        • Partners and Integrations
  • Company
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        • Why Trestle
        • Careers
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        • Contact
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Trestle Overview

19
  • Does Trestle Offer DNC Checks?
  • Does Trestle Have a Sandbox Environment To Test Integrations?
  • What is Trestle’s Coverage and Accuracy?
  • Which Countries’ Data Do You Have?
  • Does Trestle Normalize Phone Number Format?
  • How Do You Integrate Trestle’s APIs?
  • How Does Trestle’s API Pricing Work?
  • How Often is Trestle’s Data Updated?
  • How to Properly Sample a Test File and Evaluate Trestle
  • Understanding NPA-NXX and the Implications of Number Portability
  • Understanding Trestle’s Free API Trial and the API Access Request Process for Specific Products
  • What are the Response Times for Trestle’s APIs?
  • What are the Various Sources of Trestle’s Identity Data?
  • What are Trestle’s SLAs?
  • What Demographic Data Does Trestle Have?
  • What Is Our Global Phone Validation Coverage?
  • What is the Default and Max QPS Supported?
  • What Queries are Billable?
  • What Security Measures are Taken by Trestle?

Product Features

38
  • Everything to Know About IP Trust Scores
  • How to Check When an Email Address Was Made
  • Everything to Know About Spam Checks
  • Using IP Intelligence Checks to Verify Lead Legitimacy in Real Contact API
  • Everything to Know About Phone-to-Address Match
  • Real Contact API 1.1 vs. Real Contact API 2.0: What’s Changed and How to Upgrade
  • Everything to Know About Phone Activity Score
  • Everything to Know About Real Contact API 2.0
  • How Trestle’s Activity Score is Different From HLR Lookups
  • Everything To Know About Name Match Details
  • Everything To Know About Phone-to-Name Confidence Score
  • Everything To Know About Litigator Checks
  • Everything To Know About the Email Age Score Add-on
  • Everything To Know About the Email Deliverability Add-on
  • Explain Real Contact API Grading
  • Fine-Tuning Find Person API Results
  • How Can Trestle’s Email Data Be Used?
  • How Do I Determine Phone Validity?
  • How Do You Read Trestle’s Phone Activity Score?
  • How Does Our Real Contact API Name Matching Work?
  • How Does Trestle Assess Email Validity in Real Contact?
  • How is Trestle’s Phone Activity Score Calculated?
  • How To Read the Real Contact Data Assessment Report
  • International Reverse Phone API Explained
  • Line Type Fidelity and Confidence
  • Trestle API Response Attribute Ranking
  • Trestle Warnings – A Comprehensive Guide
  • Understanding the Difference: Phone Validity vs. Trestle’s Activity Score
  • What are the Different Address Types Returned by Trestle?
  • What Does a Name Match of Null Mean?
  • What Does the Carrier Name Mean?
  • What is the Difference Between CNAM and Trestle’s Smart CNAM API?
  • What is the Difference Between Fixed VoIP and Non-fixed VoIP?
  • What is the Difference Between Reverse Phone API, Caller Identification API, and Smart CNAM API?
  • What is the Link Date Associated with Phones and Addresses?
  • Why and When to Use Trestle’s Name Hint
  • Why Do We Return a Maximum of 100 Entities in Find Person API?
  • Why Does the Address Return as Invalid?

Integrations

22
  • HubSpot | Phone Validation App Integration Guide
  • ZoomInfo | Phone Validation, Real Contact, and Reverse Phone Integration Guide
  • Databar | Phone Validation Integration Guide
  • Make | Real Contact API Integration Guide
  • Make | Phone Validation API Integration Guide
  • Apollo | Phone Validation Integration Guide
  • HighLevel | Phone Validation Integration Guide
  • boberdoo | Real Contact API Integration Guide
  • Clay | Validate Phone Number Integration Guide
  • Clay | Verify Contact Integration Guide
  • HubSpot | Real Contact Phone Grading App Integration Guide
  • How Do I Use a HubSpot List To Grade My Contacts?
  • How Do I Use HubSpot Workflow Triggers To Grade My Contacts?
  • Lead Prosper | Phone Validation Integration Guide
  • Lead Prosper | Real Contact Integration Guide
  • Reverse Phone API Enrichment of Leads in Google Sheets via Zapier
  • Snowflake | Phone Validation Integration Guide
  • What is the Phone Validation Integration within ActiveProspect?
  • What is the Real Contact Integration within ActiveProspect?
  • Validate and Verify Leads with Trestle’s Phone Validation API in Sierra Interactive via Zapier
  • Validate Leads with Trestle’s Phone Validation API in LeadConnector via Zapier
  • Zapier | Grade Leads from a Google Sheet with Real Contact

Troubleshooting

9
  • How to Prevent 429 Errors by Sizing API Concurrency to Your QPS Limit
  • How to Fix 403 Forbidden Errors When Using Trestle’s APIs
  • Why Won’t My Email Work to Signup for Trestle?
  • Ruby Integrations: 403 Forbidden Errors
  • Getting 429: Too Many Requests Error – Why?
  • How to Remove or Deactivate a User in Trestle’s Developer Portal
  • How to Update Phone to Name/Address Linkage Records
  • Reviewing Usage Data
  • Why is the Name Associated with the Phone Incorrect?

Developer Portal

8
  • Business Verification Failed? Here’s What Documents You Need to Submit
  • How to Find and Download Your Receipt or Invoice
  • How to Monitor API Errors With Your Usage Graph
  • Batch Upload FAQ
  • Developer Portal Wallet Frequently Asked Questions
  • Export and Analyze Your Queries in Your Developer Portal Account
  • Getting Started with Trestle’s Developer Portal Wallet
  • Making Changes to Billing Settings for the Developer Portal Wallet

User Guides

9
  • Phone Validation in Java
  • Batch Upload Instructions
  • How Do I add Additional Members to My Trestle Account?
  • How to Handle Special Characters in API Queries
  • Phone Validation API with ASP.NET
  • Phone Validation with JavaScript and HTML: Leveraging Trestle’s API
  • Phone Validation API with PHP: Leveraging Trestle’s API
  • Phone Validation API with Python
  • Phone Validation API with React

Telephony Knowledge

9
  • Choosing the Right Number Lookup API
  • How to Identify Callers In Real-Time Using a Reverse Phone API
  • Why is Line Type Intelligence Important?
  • What is a “No Routes Found” Phone Message?
  • The Best Phone Validation API for Call Centers
  • How to Identify Disconnected Phone Numbers Automatically
  • What is a Phone Number Reputation Lookup?
  • What is a Carrier Number?
  • What is a Non-Fixed VoIP Phone?

Risk Suite Overview

8
  • How to Read Email Breach Reports and IP Abuse Reports in Decision Console
  • Everything to Know About Decision Signals API
  • How to Get Started With Decision Console
  • What is the Decision Overview and How Do I Read It?
  • What is an Attribute Card and How Do I Read It?
  • What is Link Builder and How Do I Use It?
  • Understanding Team and Account Management
  • FAQ and Troubleshooting: Decision Console
  • Home
  • Knowledge Base
  • Product Features
  • How To Read the Real Contact Data Assessment Report
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How To Read the Real Contact Data Assessment Report

3 min read

Overview of the Real Contact Data Assessment Report #

TheReal Contact Data Assessment Report evaluates the quality and reliability of your contact data, including phone numbers, emails, and mailing addresses. It incorporates signals that help assess contactability and whether a lead appears legitimate, and provides insights into your lead health so businesses can identify gaps, prioritize actions, and improve outreach effectiveness.

Once you receive your report, you can select the share or download options to easily collaborate with your team on the results.

The report serves the following purposes:

  • Improves Decision-Making: Evaluate if your current lead workflow is adequate in identifying which leads to prioritize.
  • Enhances Marketing Strategies: Learn more about the segments of your leads.
  • Maintains Database Health: Understand the quality of your leads and determine if you should take action to clean your lead lists or modify your lead acquisition strategy.

“Recommendations” Section #

This section provides actionable insights based on the quality and activity metrics of your contact data. The recommendations typically include highlights to improve engagement, validate data, and prioritize outreach efforts. Additionally, Trestle will provide comparisons between what we see in your data and the rest of the industry.

What Information Is in This Section? #
  • Actionable Suggestions: Tailored advice based on your contact data’s grades and activity scores.
  • Data Maintenance Tips: Strategies for cleaning, validating, and enriching low-quality data.
  • Outreach Optimization: Recommendations for leveraging high-quality data to improve customer interaction.
  • Industry Comparisons: Insights into what we see across the industry versus your uploaded file results.
Sample Recommendations #
  1. 3.0% of records are invalid due to incorrect phone syntax or not assigned to carriers. These records should be cleaned to ensure valid phone numbers. 
    • In this example, Trestle is providing context around the validity of your contacts phone numbers. You could consider using Trestle’s Real Contact API to validate your contact phone numbers before you call them.
  2. There are fewer verified, contactable records than we typically see (Grade-As are 4.2% of the file). For more on our contact grading, see here, which can help investigate the lower count of high-quality records.
    • With this recommendation, Trestle is identifying that there are fewer high quality contacts than what we typically see. Trestle’s Real Contact API can grade your contacts to determine contactability and improve prioritization workflows.
  3. Mobile phones are higher than we typically see (87.1%), a positive sign as they generally improve contactability and Phone Contact Grades.
    • Some of the recommendations like above will be helpful in the context of your data exceeding industry standards.
  4. The file contains quite a few invalid/risky emails (20%). Filtering these out for marketing campaigns can reduce email bounce rates and protect domain reputation. More on email validity here.
    • In this example, Trestle is providing context around the validity of your contact’s email addresses. You could consider using Trestle’s Real Contact API to validate your contact email addresses before you include them in a marketing campaign.

Aggregates #

The rest of the report is aggregated with numbers, percentages, and comparisons to better understand the contact data and how the recommendations came about. It starts with the Summary section and then the Phone, Email, Address, and IP Data sections.

“Summary” Section #

The summary section provides an overview of Trestle’s input for this report and compares it to what we see in the industry when we get these assessment and verification requests.

  • Total number of records
  • Total number of duplicate records
  • Records with missing inputs

All of these are self-explanatory, and the context of how complete the assessment will be is based on the fill rate of the input file provided. 

“Data” Sections: Phone Data, Email Data, Address, and IP Data #

See the actual findings of your records and take action with this information. Get a breakdown of the different contact grades your data set received and understand what percentage of your overall lead list could be prioritized or even completely removed. 

For example, see the image below:

  • Details: This defines the results further down the row.
  • Your Data | Absolute: This is the number of records evaluated for this attribute.
  • Your Data | Relative: This is the percentage of the total number of records evaluated that match this result.
  • Trestle Benchmark | Relative: This is what we’ve found across our aggregated customer results. It helps provide context regarding where your data stands against the industry more broadly.
  • Difference: This is the difference between your data and Trestle’s broader customer benchmark. The difference is colored according to whether it indicates better or worse quality of the file compared to the benchmark.

Select the “Graph View” button to visualize your results, get a quick glimpse into what is possible with your leads, and compare some of your results to others in the industry.

Final Thoughts #

The Real Contact Data Assessment Report equips businesses with the insights needed to improve their data-driven strategies. Enabling Trestle’s Real Contact API will drive better engagement, higher ROI, and informed decision-making.

Feel free to schedule a meeting with us to discuss Real Contact’s capabilities and determine if it is a good fit for your business.

Updated on April 22, 2026
How is Trestle’s Phone Activity Score Calculated?International Reverse Phone API Explained
Table of Contents
  • Overview of the Real Contact Data Assessment Report
  • "Recommendations" Section
    • What Information Is in This Section?
    • Sample Recommendations
  • Aggregates
  • "Summary" Section
  • "Data" Sections: Phone Data, Email Data, Address, and IP Data
  • Final Thoughts
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Verified Identities. Trusted Interactions.

U.S. coverage for enrichment and verification.

Global coverage for phone validation and reverse phone.

Based in Bellevue, WA

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Company

  • About Us
  • Why Trestle
  • Careers
  • Affiliate Program
  • Contact

Products

  • Reverse Phone API
  • Reverse Address API
  • Caller Identification API
  • Phone Validation API
  • Real Contact API
  • Address Validation API
  • Batch Upload
  • Litigator Check Add-on
  • Free Lead Assessment

Use Cases

  • Outbound Dialing Optimization
  • Inbound Call Routing and Verification
  • Signup and Onboarding
  • Lead Verification
  • Optimize AI Voice Agents

Resources

  • Blog
  • Knowledge Base
  • Case Studies
  • Glossary
  • Data Dictionary
  • Changelog
  • Partners and Integrations

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  • API Live Status

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  • Do Not Sell My Personal Information
Trestle - Identity Data Enrichment and Validation APIs
  • Products
        • Enrichment

        • Reverse Phone APIGLOBAL
        • Verify and enrich phone numbers
        • Reverse Address API
        • Verify and enrich address information
        • Caller Identification API
        • Identify and enrich caller information
        • Add-Ons

        • Litigator Check
        • Identify phone numbers associated with serial litigators
        • Email Deliverability
        • Confirm email inboxes accept mail in real-time
        • Spam Check
        • Flag phone numbers tied to high-risk calling activity
        • Email Age Score
        • Score how long an email has existed
        • Validation & Verification

        • Phone Validation APIGLOBAL
        • Validate phone numbers and identify disconnected numbers
        • Real Contact API
        • Verify phone, email, and address information
        • Address Validation API
        • Validate and normalize addresses
        • Assess Risk

        • Decision Console
        • Optimize identity verification for manual review
        • Decision Signals API
        • Automate identity verification for risk decisioning
        • Start using Trestle products today

          Get started for free—no credit card required

          Start Your Free Trial

  • Solutions
        • Industries

        • B2B Contact Data
        • eCommerce
        • Insurance
        • Lead Generation
        • Real Estate
        • Communications
        • Use Cases

        • Verify and Prioritize Leads
        • Outbound Dialing Optimization
        • Assess Risk And Prevent Fraud
        • Inbound Call Routing and Verification​
        • Signup and Onboarding​
        • Optimize AI Voice Agents
        • Start using Trestle products today

          Get started for free—no credit card required

          Start Your Free Trial

  • Pricing
  • Resources
        • API Documentation
        • Blog
        • Knowledge Base
        • Case Studies
        • Glossary
        • Partners and Integrations
  • Company
        • About Us
        • Why Trestle
        • Careers
        • Affiliate Program
        • Contact
  • Log In
  • Start for Free