Raiser's Edge, Financial Edge, Education Edge, Researcher's Edge:
 
Login URLEnvironment
https://appsca.blackbaudondemand.comCanada
https://login2.blackbaudhosting.comUS - East
https://login1.blackbaudhosting.comUS - West
https://login4.blackbaudhosting.comSydney
https://login01.blackbaud.net/Citrix/S01Web/Europe
renxt.blackbaud.com or fenxt.blackbaud.comMicrosoft Azure

Blackbaud NetCommunity:

Access the testconfig or configinfo page to find what the NetCommunity Database Connection test database server begins with.
 
Database Server begins withDatacenter
D1US - West
D2US - East
D3Canada
M4Sydney
S01Europe
S## (Ex: S23)Microsoft Azure