Frequently Asked Questions

Yes, your first quality report is completely free with no credit card required. We verify a statistically significant sample of your phone list and provide a detailed quality analysis at no cost.

We believe you should be able to see the quality of your data before making any commitments. Our free reports help you understand what you're working with.

Most reports are ready within 2-5 minutes. The exact time depends on your file size and our current processing queue.

We'll email you as soon as your quality report is ready. You can also check the status on our website anytime.

We support CSV (comma-separated values) files up to 100MB. This is the standard export format from all major skip tracing providers.

Our system automatically detects your file format and the skip tracing provider it came from, including:

• PropStream
• BatchLeads
• DealMachine
• REI Skip Tracing
• Skip Force
• Skipify
• Lead Sherpa
• Land Insights
• And many more...

To get your free report, we need:

• Your name and email - So we can send you the report
• Your phone number - In case we need to discuss results
• Your CSV file - The phone list you want verified

Optionally, you can provide your company name, the skip tracing provider, and your use case. This helps us provide more relevant analysis.

We use a multi-step verification process:

• Random sampling - We select a statistically significant sample from your list
• Real-time carrier lookup - Each number is checked against carrier databases
• Line status verification - We determine if numbers are active, disconnected, or ported
• Line type identification - Mobile, landline, or VoIP classification
• Name/address matching - When available, we verify contact information matches

Learn more on our How It Works page.

We verify a statistically significant sample that provides accurate insights into your overall list quality. The sample size is automatically calculated based on your list size to ensure reliable results.

For most lists, this means verifying 200-400 records, which provides a 95% confidence level with a margin of error under 5%.

Your quality report includes:

• Overall accuracy score - Percentage of valid, dialable numbers
• Line type breakdown - Mobile vs. landline vs. VoIP distribution
• Disconnected rate - Percentage of numbers that won't connect
• Name match rate - How often numbers match contact names
• Provider comparison - How your list compares to industry benchmarks
• Detailed metrics - Additional data points for analysis

Our verification accuracy is very high because we use real-time carrier database lookups rather than relying on cached or outdated data.

The statistical sampling methodology provides 95% confidence with less than 5% margin of error for list-wide projections. This means the quality scores you see are highly representative of your entire list.

Yes, we take data security very seriously:

• 256-bit encryption - All data transfers use bank-level encryption
• Secure storage - Files are stored on encrypted servers
• Automatic deletion - Your files are automatically deleted after processing
• No sharing - We never share or sell your data
• SOC 2 compliance - Our infrastructure meets enterprise security standards

Read our full Privacy Policy for more details.

Your uploaded files are automatically deleted after processing is complete. We only retain:

• The aggregated quality report (no individual phone numbers)
• Your contact information for sending the report
• Anonymous usage statistics for improving our service

We do not keep copies of your phone lists or share them with any third parties.

Only you can see your data and reports. Our staff may access aggregate statistics for service improvement, but never your individual phone lists or contact information.

We never share, sell, or provide your data to third parties except as required by law.

Our system automatically detects and maps columns from your file. At minimum, your file should include:

• Phone number - The primary phone number to verify

For better analysis, include these optional fields:

• First name and/or last name
• Street address
• City, state, ZIP
• Additional phone numbers

We support files from all major skip tracing providers and automatically recognize their column formats.

The maximum file size is 100MB. This typically accommodates lists with hundreds of thousands of records.

If you have larger files, please contact us and we can arrange a custom upload process.

Yes! You can upload and verify as many lists as you need. Each list will get its own quality report.

This is great for comparing different skip tracing providers or testing lists from different campaigns.

If your upload fails, try these steps:

• Ensure your file is a valid CSV format
• Check that the file is under 100MB
• Try a different browser (Chrome or Firefox recommended)
• Clear your browser cache and try again
• Check your internet connection

If problems persist, contact us at support@phoneverifier.io

Yes, we offer custom plans for teams that need regular verification or full-list verification (not just sample-based).

Contact us at support@phoneverifier.io to discuss your needs.

The free quality report provides an analysis of your list's overall quality. Full list cleaning (where we verify every number and return a cleaned file) is available as a premium service.

Contact us if you're interested in full list verification and cleaning.