need help trying to read a Line

i need help reading a line similar to the one below

internet.co.uk,Y,N,N,1996-07-30,2006-07-30,1,NOMINET
or
automaton-example.org.uk,N

its a whois on the domain internet.co.uk

so i want to skip the domain part of the line such as internet.co.uk and automaton-example.org.uk and just go straight to the first Y/N (atm ignoring the other N's and dates etc.

if its a Y - its registered
if its a N - its free

and if its Y i want it to keep looping until it turns to N

how would i go about doing this?