I've got a mobile US GEO campaign running with Traffic Junky and I'm finding that 25% of my clicks are coming from countries outside of the US. I spoke with TJ and they said that there's nothing they can do as they believe those clicks are coming from people using proxies.
Has anyone else experienced this? I'm thinking about redirecting international traffic to different offers. Is there anything else I can do?
I've noticed a few ad networks having problems with USA targeting atm. Seems like they are all using the same database which is fucking up BIG time.
Keep your reports and check the IP's and carriers as well
it seems to happen on nearly every network (facebook, plugrush, tj, adxpansion, etc.). I dont know why but they should maybe update geoip database 
The number of IP's available right now is finite - and are being re-used in numerous locations and databases are not updated to show this. So geo tracking is going to be an issue.