Instant Messaging Service
Telegram is a cloud-based instant messaging and voice over IP service. Telegram client apps are available for Android, iOS, Windows Phone, Windows NT, macOS and Linux. Users can send messages and exchange photos, videos, stickers, audio and files of any type. Telegram was launched in 2013 by the brothers Nikolai and Pavel Durov. Telegram is registered as both an English LLP and an American LLC. Telegram reached 200 million monthly active users on March 14, 2019. Telegram accounts are tied to telephone numbers and are verified by SMS or phone call. Users can add multiple devices to their account and receive messages on each one.