Azure teams bot service hosted in on-premise machine not able receive every request since country block secuirty layer

Question

Hi,

We have hosted bot service in the on-premise machine, we have a country block security layer in internal firewall settings. Only we are allowing 40 countries in the firewall settings. So because of this when we send messages through the team's bot only a few messages are reaching the server.
Can we have a list of countries from where we can get requests from the teams bot to the server(On-premise VM with bot service application as messaging endpoint)?

Thanks in advance,
Karthik Reddy