Forum Moderators: DixonJones
Yes, you can look up sites from within ARIN (American Registry for Internet Numbers)
http://www.arin.net/tools/whois_help.html
Having IP Numbers hit your site from ARIN does not mean that ARIN is doing it. Rather it means that an IP Number assigned to someone within the United States has been hitting your site.
By plugging in the IP Number you'll be able to accertain whom it was that was hitting your site.
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Pendanticist.