There’s currently nothing “out of the box” to do this but there is some discussion here: PiAware 3.x and Dump978
If you mean the raw ADS-B frames, they’re on TCP port 30005
If you mean the summary reports that go to FA, that’s not directly available but you can simulate it by:
$ /usr/lib/piaware/helpers/faup1090 --net-bo-ipaddr localhost --net-bo-port 30005 --stdout
(though I don’t know it’s going to be hugely interesting as the format is very FA-specific)