Swordfish Reverse Lookup is a powerful feature that helps you discover additional contact information from various starting data points. The available search options depend on your plan type, with each offering different capabilities and data sources.


Plan Availability & Features

Unlimited Plans (Current)



Reverse Email & Phone Lookup with three search modes:

  • Social: Search using social profile URLs (LinkedIn, Facebook, Twitter) or usernames
  • Phone: Find contact information associated with a phone number
  • Email: Find contact information associated with an email address


Legacy Plans (Pre-July 2025)



Comprehensive Reverse Lookup with multiple search modes:

  • Name & Company: Search using first name, last name, and company
  • Name & Location: Search using name and location details
  • Full U.S. Address: Search using complete address information
  • Phone: Find contact information associated with a phone number
  • Email: Find contact information associated with an email address

Note: Legacy plans use different data sources and may provide alternative results compared to unlimited plans.


When to Use Reverse Lookup

For Unlimited Plans

Use Reverse Lookup when you have:

  • A social media profile or username and want to find email/phone numbers
  • A phone number and want to find associated email or social profiles
  • An email address and want to find associated phone or social profiles


For Legacy Plans

Use Reverse Lookup when you have:

  • Only basic information like name + company
  • A physical address but no social profiles
  • Limited contact details and need to find missing information
  • Contacts with minimal online presence


How to Use It

Unlimited Plans

  1. Navigate to the Reverse Lookup section in your dashboard
  2. Choose your search method: Social, Phone, or Email
  3. Enter your search information:
    • Social tab: Paste a LinkedIn, Facebook, or Twitter URL, or enter a username
    • Phone tab: Enter the phone number you want to search
    • Email tab: Enter the email address you want to search
  4. Select what you're looking for (email, phone, or both)
  5. Click Search


Legacy Plans

  1. Navigate to the Reverse Lookup section in your dashboard
  2. Choose from available search modes:
    • Name & Company
    • Name & Location
    • Full U.S. Address
    • Phone
    • Email
  3. Fill in the required information for your chosen search method
  4. Select what you're looking for (email, phone, or both)
  5. Click Search


What to Expect

For Unlimited Plans

  • Fair use applies: Usage counts toward your fair use policy
  • Data source: Results come from our current data sources optimized for unlimited usage


For Legacy Plans

  • Multiple matches: If we find more than one person with the same criteria, we'll show you all relevant results
  • 1 credit per match: You are only charged if a result is found. No match = no charge
  • Alternative data sources: Access to different data sources that may provide unique results


Need Different Results?

If you're finding that reverse lookup results on your current plan don't meet your needs, you might benefit from switching to a plan with different data sources and search capabilities. Contact our team to discuss:

  • The differences between unlimited and legacy plan data sources
  • Which search methods work best for your use case
  • Upgrading or switching plan types


Need Help?

If you need assistance using Reverse Lookup, want to discuss different data sources, or have questions about your search options:


Our team can help you get the most out of Reverse Lookup and determine the best plan for your needs.

If you need help using Reverse Lookup or want to talk through your use case, feel free to email us at support@swordfish.ai. We're happy to help.