>>>>> "croak" == Pollywog <croak@shadypond.com> writes: croak> What exactly are these spammers doing? Did they convert a croak> dotted-quad address into a decimal number? I can tell you an easier way to decipher them, but I too would like to know how they are contructed, i.e what's the algorithm. Go here: http://www.abuse.net/cgi-bin/unpackit -- Bob Bernstein at Esmond, R.I., USA