Just noticed this going back a year or two. Looks like a bot? And looks like someone is taking some trouble to present random UA's?
Can't trace it beyond Verio.
NFFC
1:52 pm on Aug 11, 2002 (gmt 0)
My fav whois tool gives this message:
Reassignment information for this block is available at rwhois.verio.net port 4321
I can't work out any syntax though.
And remember, just because you are paranoid doesn't mean people aren't out to get you after all.
SwissGuy
2:31 pm on Aug 12, 2002 (gmt 0)
Appraise your paranoia. That IP address belongs to Wordtracker, a commercial bot extracting your valued keywords for their customers (your competition). Besides E-mail Harvesters, this on should certainly be disallowed to access your site.