Ipstenu (Mika Epstein)

JohnnyWhite2007

Spam is one thing, but trolls and sock puppets are another. Sometimes people just decide they’re going to be jerks and create multiple accounts with which to harass your honest users. This plugin helps you fight back by logging the IP address used at the time of creation.
Log into your WP install as an Admin and you can look at their profile or the users table to see what it is. For security purposes a user’s own IP is not displayed to them when they look at their own profile.
<ul>
<li><a href="https://ko-fi.com/A236CEN/" rel="nofollow ugc">Donate</a></li>
</ul>
<h3>Privacy Notes</h3>
This plugin adds additional data to a new user’s <code>wp_usermeta</code> data under the <code>signup_ip</code> key. This data is directly tied to the user account, and is only editable via the database. Should a user account be deleted from the site, the data will be automatically deleted.
No external data is transmitted, it all stays on your install.

Register IPs

Does exactly waht it says

When a new user registers, their IP address is logged. Supports multisite and single site!

keith_wp

Add extra (all sortable) columns to the Users screen, showing:
<ul>
<li>the number of comments, linked to the edit page for only that user’s comments,</li>
<li>the number of all custom post types authored, each linked to the matching edit page for that post type and that user,</li>
<li>their registration date, and IP address used,</li>
<li>their last login date, and IP address used,</li>
<li>and their total number of logins.</li>
</ul>
Use the comment and CPT links to easily manage your users’ output, and the registration and login data to track lazy spammers and trolls, or to see whether a new user is actually using the site.

Extra User Data

Add extra columns to the Users screen - number of comments and all post types, registration & login dates and IP addresses.

Register IPs vs Extra User Data