The company, which had 300 million users about nine months ago, said more than 75 per cent of its community lives outside the US.
In a blogpost, Instagram said more than half of the last 100 million to join live in Europe and Asia.
The countries that added the highest number of users are from Brazil, Japan and Indonesia, it said.
Among social networking apps, Facebook has 1.44 billion monthly active users, while Twitter has 316 million monthly active users.
In 2012, Facebook had announced the acquisition of Instagram for USD one billion.
The most followed accounts include David Beckham from the UK, Caitlyn Jenner from the US, Indonesia's Raffi and Nagita, German soccer player Toni Kroos and South Korea's T.O.P, it said.
"When Instagram launched nearly five years ago, 400 million seemed like a distant dream. Now, we continue to strive to improve Instagram - helping you experience the world through images and connect with others through shared passions," it said.
from India and 30 other countries to advertise on the app.
You’ve reached your limit of {{free_limit}} free articles this month.
Subscribe now for unlimited access.
Already subscribed? Log in
Subscribe to read the full story →
Smart Quarterly
₹900
3 Months
₹300/Month
Smart Essential
₹2,700
1 Year
₹225/Month
Super Saver
₹3,900
2 Years
₹162/Month
Renews automatically, cancel anytime
Here’s what’s included in our digital subscription plans
Exclusive premium stories online
Over 30 premium stories daily, handpicked by our editors


Complimentary Access to The New York Times
News, Games, Cooking, Audio, Wirecutter & The Athletic
Business Standard Epaper
Digital replica of our daily newspaper — with options to read, save, and share


Curated Newsletters
Insights on markets, finance, politics, tech, and more delivered to your inbox
Market Analysis & Investment Insights
In-depth market analysis & insights with access to The Smart Investor


Archives
Repository of articles and publications dating back to 1997
Ad-free Reading
Uninterrupted reading experience with no advertisements


Seamless Access Across All Devices
Access Business Standard across devices — mobile, tablet, or PC, via web or app
