I had a problem with wordpress when I first started using it, being based in Asia most of my commenters are from this region, mainly Malaysia.
So when I tried to look up the commenters IP addresses in WordPress, I didn’t get any information because it defaults to ARIN (The American Registry) to lookup the IP addresses.
Like for example this:
It just says registered to APNIC (Asia Pacific Registry).
Where as if you use another service like Whois.sc, it will show you proper location like so:
To fix this, you need to edit the /wp-admin/edit-comments.php file.
The lines you need to edit are 92 and 145.
You need to change:
Then re-upload the edit-comments.php file to your active install, and refresh the comments page, you can now click the IP address of the commentors and get the correct information!