Instant messaging service ICQ is shutting down after 27 years

ICQ, one of the earliest instant messaging services launched in 1996, is shutting down after 27 years. Acquired by VK from AOL in 2010, ICQ once boasted over 100 million users but has seen a decline with the rise of social media platforms. The service will cease operations on June 26, with users directed to VK Messenger and VK WorkSpace for future communications. Despite its longevity and a dedicated user base, particularly outside the U.S., the era of traditional instant messaging services like ICQ seems to be concluding.

ICQ used a unique identification number, known as the UIN (Universal Internet Number), to identify its users1. This number was assigned to each user upon registration and allowed them to connect with others without sharing personal information like email addresses1.