Truecaller Caller ID and Block

Truecaller is a globally recognized smartphone application that provides caller identification, call-blocking, flash-messaging, and call-recording services. Originally developed in Sweden, it has become essential for mobile users looking to avoid telemarketing and spam calls. The app operates by crowdsourcing contact data from its massive user base to provide accurate real-time caller ID globally.

The service was founded in Stockholm in 2009 by Nami Zarringhalam and Alan Mamedi. While the brand has its roots and headquarters in Sweden, a significant portion of its engineering team and user base is located in India, making it one of the most used applications in the South Asian market. The company remains independent and is publicly traded on the Nasdaq Stockholm exchange, ensuring its operational transparency as a leading tech entity in the communication space.