> We are running more than 850 voice servers in 13 regions (hosted in more than 30 data centers) all over the world. This provisioning includes lots of redundancy to handle data center failures and DDoS attacks. We use a handful of providers and use physical servers in their data centers. We just recently added a South Africa region. Thanks to all our engineering efforts on both the client and server architecture, we are able to serve more than 2.6 million concurrent voice users with egress traffic of more than 220 Gbps (bits-per-second) and 120 Mpps (packets-per-second).

I don't see anything on their messaging specifically, just assuming they would have something similar.

https://discord.com/blog/how-discord-handles-two-and-half-mi...