Number Book the world’s leading unknown caller ID and spam blocker. It identify and block spam calls or SMS and search for unknown numbers.

Number Book is powered by a database of ONE BILLION phone numbers from over 100 million users.

This application aims to offer the most accurate Name that is not easily accessible on cell phones through other mediums. It also respects your right to privacy. Your phonebook is never made searchable or public.

Key Features:

▪ Global coverage - Always know who’s calling. Number Book identify the name of the caller! You can search over ONE BILLION phone numbers worldwide.

▪ Block unwanted callers and SMS (Enable Spam Identification and Blocking from Settings-> Phone-> Call Blocking & Identification). Number Book protects you from telemarketers, scammers, robocalls or any other fraud callers.

▪ Accurate - Frequently validated information

▪ Intuitive - User-friendly, clean design

▪ Premium - Upgrade and get access to:
- Unlimited requests
- Remove all ads
- Auto-renewing subscription ($1.99 monthly / $3.99 for 3 months / $5.99 for 6 months / $9.99 yearly- price varies by country)

The payment will be charged to iTunes Account at confirmation of purchase.
The subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period.
The account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal.
The subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase.
No cancellation of the current subscription is allowed during active subscription period.


Support Email: [email protected]
Terms of service: https://numberbook.net/terms.html
Privacy Policy: https://numberbook.net/privacy-policy.html


NumberBook app is constantly improving with new useful features. Download it today for free!