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TCPA Authority Test Numbers

Use these test phone numbers during development to verify your integration with the TCPA Authority APIs.
For the complete list of test numbers and expected responses, contact support@dnc.com.

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Test Number Categories

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Numbers That Return “Reassigned”

Test numbers that will return IsReassigned: true:
  • Use these to test your “do not call” logic
  • Verify your system properly handles reassigned numbers

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Numbers That Return “Not Reassigned”

Test numbers that will return IsReassigned: false:
  • Use these to test your “safe to call” logic
  • Verify normal call flow continues

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Numbers That Return “Unknown”

Test numbers that will return IsReassigned: null:
  • Use these to test your edge case handling
  • Verify your system handles uncertain results appropriately

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Testing Best Practices

Always use designated test numbers in development and staging environments to avoid consuming production API calls.
Make sure to test all three response types (true, false, null) to ensure your application handles each case correctly.
Test with various date formats to ensure your system correctly formats dates for the API.

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Example Test Request

curl --location --request GET \
  'https://dataapi.dncscrub.com/v1.4/Data/TCPAAuthority?phoneNumber=TEST_NUMBER&date=20210209' \
  --header 'loginId: YOUR_API_KEY'

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Getting Test Numbers

Contact support@dnc.com to receive:
  • Complete list of test phone numbers
  • Expected responses for each number
  • Postman collection with test cases