Manage, add and update customer phone numbers to authenticate identity across multiple use cases.

A single identity authentication platform that reduces complexity and total cost of ownership to create a holistic view of your customer across their entire experience

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Prove Fonebook helps companies:


  • Accuracy of phone numbers
  • Customer satisfaction
  • High-risk approvals
  • Login/OTP pass rates
  • P2P/money movement throughput


  • Call center handle time and OPEX
  • Fraud rates
  • Point solutions
  • Total cost of ownership

Prove Fonebook™ is a registry of tokenized customer identities that manages, adds, and updates customer phone numbers

This enables companies to recognize and authenticate customer identities across multiple use cases and channels

How It Works


Create your Fonebook, a registry of identity tokens for your customers


Add and Update

Add and update missing phone numbers and identity data


Manage tokens and keep data fresh against changes


Recognize and Authenticate

Recognize and authenticate customer tokens when you interact with them throughout the customer journey

Simple, Predictable Pricing

Our clients love our simple and predictable pricing model (per managed customer per month).


"Prove's solution saved our call center.

We implemented it proactively before we began seeing this surge, and we are so glad that we did. It has enabled us to increase our number match rate and cut down significantly on call wait times. It has very clearly made a difference for us!"

Call Center Authentication Executive
Tier-1 Bank

Fonebook results for a Tier 1 bank client

A tier 1 bank client wanted to consolidate their identity authentication point solutions and have a more holistic view of their customers across uses cases and channels. After implementing Fonebook, they saw an immediate ROI and productivity benefit. They also increased the number of verified customer phone numbers they had on file, enabling them to provide a better customer experience for customers in their contact.

in OPEX savings
in new revenue
in fraud reduction

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