Analysis of Telegram's Data Centers Reveals User Distribution and Connectivity Issues

Jul 15, 2026

AI Summary

Telegram operates five data centers, with notable connectivity issues reported in DC5. An analysis indicates that DC2 and DC3 may not have active users, raising questions about their operational status and user allocation methods.

Telegram has five data centers (DC1-5) located in Miami, Amsterdam, and Singapore.
Each user is assigned to a specific data center upon registration, which cannot be changed based on location or phone number.
DC5 is known for frequent outages, particularly affecting users in China, who often express frustration over its reliability.
A bot created to check user data centers revealed that DC2 and DC3 had no detected users, leading to speculation about their operational status.
It is suggested that DC2 may have users but is not detected due to flaws in the bot's querying method, while DC3 likely does not accept new users.
Testing methods for determining data center allocation revealed that users assigned to DC2 were misidentified as being on DC4 due to shared CDN domains.
Further analysis indicated that existing users on DC3 have likely been migrated to DC1, confirming that DC3 no longer accepts new registrations.
The findings highlight the complexities of Telegram's data center operations and user assignment processes, which are not fully transparent.

telegramdata centerstechnologycloud computinginfrastructure

Analysis of Telegram's Data Centers Reveals User Distribution and Connectivity Issues

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