Could someone from Microsoft please contact me off line please. We have had tickets opened for quite a while now but the ticket seems to be not getting to the correct team. We have a customer who has been trying to get their app working, we have an express route peering directly to MS, however we are NOT receiving the more specific prefix over express routes. This is creating issues w/ the app working due to the FW involved. The Azure Host IPv4 is: 52.158.246.45 <https://urldefense.com/v3/__http:/52.158.246.45__;!!NHLzug!dMhpBpzFo0cPNAWEcE4HHeCalVX8pvjl42poIxyYSSEyObfJ1yNJnb6p7f7rWYFh$> and here are the networks we are learning over express routes: 52.158.0.0/17 52.158.160.0/20 52.158.176.0/20 52.158.192.0/19 52.159.64.0/18 However we are receiving a prefix over our ISP where the route is being used. I have not been able to find this specific host in the Azure route table dump that is posted on the MS web site. cpv