About Whoscall: Leading Caller ID & Scam Prevention App

In a World Of Unknowns
Building a Trustworthy Communication Environment

Over the years, Whoscall's team of information scientists have been sifting through and analyzing a mountain of caller number data, searching for the most optimal method of identifying an unknown number to build a trustworthy communication environment.

NO.1

Largest database in
East and Southeast Asia

2.6Billion

Phone number entries

25Billion

Identified numbers & SMS

※Statistics based on surveys conducted by Whoscall(May 2023)

Whoscall Milestones

2010
- First released on Google Play
2011
- Recommended by Eric Schmidt, former Google CEO
2013
- Acquired by Korea's Naver (Parent company of Line)
- Allied with President Transnet, a home delivery business, to increase answer rate of home delivery calls
- Google Play Taiwan 2013 Innovation Awards
- Google Play's Best Apps of the Year
2014
- Released on the App Store
- Partnered with Trend Micro to create a robust information security network
2015
- App Store Featured APP
2016
- Google Store Most Popular App
2017
- Investment from Trinity Investment Corporation and the Industrial Innovation and Transformation Fund
2019
- Investment from Cathay Securities Investment Trust's Private Equity Fund
- Whoscall Verified Calls Service launched
- Joint promotion of Whoscall for Landline service with Chunghwa Telecom
2020
- Global downloads exceed 80 million
- Received the Presidential Innovation Award
- Established Japan Office in Fukuoka City
- Achieved ISO 27001 (Information Security Management System) certification
2021
- Global downloads exceed 100 million
- Achieved ISO 27701 (Privacy Information Management System) certification
- Smart SMS Assistant launched