You cannot get the IP address of another facebook user. You may be able to get the IP address of a messenger user if they are chatting to you.To attempt to get the IP address of a user chatting to youclose all other app including internet explorer. The reason is to minimize the quantity of active connection open.on a windows machine press the windows keytype u201ccmdu201d and press enter to open a command windowin the cmd window type u201cnetstat -an c:newNetStatList.txtu201d and press enteropen the txt document at c:/newNetStatList.txtThere will be a load of IP addresses. ignore anything with 192.168.x.x IP as this is your local network. ignore anything 127.x.x.x as that is your own machine. ignore anything with .0.0.0 as this is aso local network. Look at any other IPs as it should be one of those. Facebook messenger used to be on port 5222 so it could be x.x.x.x:5222 but donu2019t count on it as I think it could use any port now.Please note. Using an IP address to track someones location is very unreliable as there are a lot of reasons why the geographic location of an IP address is no where near the user. For example my location shows me to be in Fareham, UK while i am at work, this is because the organisation that I work for has their router located in Fareham.