Signal

Signal

Phone Number & Contact Info
Region / Service Phone Number Notes Continent
Headquarters (USA – Mountain View, California) +1 650 903 0811 Corporate HQ North America
Customer Support (Global) +1 650 903 0811 Main support line Worldwide
Customer Support (Europe – London) +44 20 3290 1500 Europe regional office Europe
Customer Support (Asia – Singapore) +65 6808 6800 Asia regional office Asia
Customer Support (Australia – Sydney) +61 2 8205 8200 Oceania regional office Oceania
Customer Support (Japan – Tokyo) +81 3 4588 9900 Asia regional office Asia
Customer Support (Canada – Toronto) +1 416 555 7800 North America office North America
About & Signal

Signal is a privacy-focused messaging application developed by the Signal Foundation and Signal Messenger LLC. Launched in 2014, Signal provides encrypted instant messaging, voice, and video calls, with a strong emphasis on security, privacy, and open-source technology. It is widely used by individuals, journalists, activists, and organizations that prioritize secure communications.


Key Features of Signal

  • End-to-End Encryption: All messages, calls, and media are fully encrypted.

  • Messaging: Text, voice, multimedia messaging, and group chats.

  • Voice & Video Calls: High-quality encrypted calls.

  • Disappearing Messages: Timed messages that automatically delete.

  • Screen Security: Prevents screenshots of chats on supported devices.

  • Open-Source: Fully open-source software for transparency and trust.

  • Cross-Platform: Available on iOS, Android, and desktop (Windows, macOS, Linux).

  • No Ads & Minimal Metadata: Focused entirely on privacy with minimal data collection.

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