[SC-Help] Confused - different results

[Wayne P.]

I was playing around with the SpamCop Blacklist, via the web interface and
the command line, but I got different results.

>From the SpamCop stats page, I grabbed IP 62.50.9.18 to do lookups on.  Via
the web, it tells me the ip is listed in the blacklist.

Via command line:
nslookup 62.50.9.18.bl.spamcop.net
Server:  devserv.dtndev.data-trak.net
Address:  192.168.0.1

*** devserv.dtndev.data-trak.net can't find 62.50.9.18.bl.spamcop.net:
Non-existent domain

According to the docs, I would assume that this ip is NOT in the blacklist.

What am I doing wrong?

TIA!

Wayne P.