You can find AS-path for the networks with the below show command
"show ip bgp"
route-views.on>sh ip bgp
> 1.5.0.0/16 154.11.63.85 0 852 2914 38639 i
and if you want to see the AS path for a single prefix put show ip bgp X.X.X.X (where X.x.x.x is the network)
I hope this answer your question