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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.

Where does TeleSign acquire the information provided in its PhoneID service?

TeleSign aggregates the information returned from PhoneID queries from a variety of sources, and the data is frequently updated. The PhoneID service is currently patent-pending.

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