How do I get a list of the Login IP ranges specified in each profile of my org. The list that is obtained from the data loader from LoginIP obkect doesn't seem to give results for each profile.
I dont think this is possible using a SOQL query. But you can try using metadata API :
and go for ProfileLoginIpRange
Also here is a sample at GitHub that sets the IP ranges on profiles using metadata API if that helps you. https://gist.github.com/metadaddy-sfdc/1334017
This will not be possible through SOQL query.