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Telephone Verification
With over 100 million transactions processed, TeleSign is the most respected name in the field of telephone verification and protects the websites of the biggest companies on the internet.

FAQ: Frequently Asked Questions

Below, you'll find a list of our most commonly asked questions. If you have a question that you can't find the answer to, please contact us using the information found on our Contact Page, and a TeleSign representative will be happy to answer your questions.

What types of phone numbers can PhoneID identify?

TeleSign's PhoneID service can identify the following types of phone lines:
  • Landlines
  • Mobile Phones
  • Pre-Paid Mobile Phones
  • VOIP Phones
  • Various other phone types

For a complete list of the types of phones PhoneID can recognize, current TeleSign users should refer to the PhoneID API documentation.
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