No, Linode just uses HE.net, Cogent, etc..
http://he.net/
"Get BGP+IPv6+IPv4 for $0.45/Mbps!"
Hurricane Electric is pretty cheap. You can hit 2TB a month on 10mbps. That is only ~$4.50 a month.
There are a couple tricks with it:
1) On a $10 Linode, you aren't going to upload 2TB a month unless you are acting as a file server. Any kind of application [say, wordpress] isn't going to do it.
2) The majority of people won't max out their bandwidth usage because they are running app/database servers on Linode.
They probably take a small loss on the people maxing out their 2TB a month but on average they aren't. It isn't worth the bad PR to kick a small percentage of small net loss customers.
http://www.webhostingtalk.com/showthread.php?t=1292091
fyi, back in 2013 Cogent was doing sub $1/Mbps as well.
Bandwidth from the cheap providers is cheap. The difference is AWS & Google are making their margins on what they charge for bandwidth is my guess.