IP whitelisting allows you to create a list of trusted IP addresses from which you can access datacenter proxies that are assigned to you without user:password authentication.
You can whitelist your IP addresses in the datacenter proxy dashboard by yourself as many IPs as you need. You can also whitelist not only single IPs but the whole IP range (e.g., 192.168.1.0/25). By default, the largest range you can whitelist by yourself is /24. If you want to whitelist a more extensive range, please contact your dedicated account manager.