Last modified: 2008-08-12 06:03:35 UTC
When a user is queried in checkuser, his IPs are displayed with a note indicating if that IP is currently blocked (either directly or by a range block). There should also be a note indicating if that IP has ever previously been blocked (either directly or a range block). Often times, the same IP may be blocked over-and-over with short-term blocks when a long-term block would be preferable. This feature should be added in conjunction with bug 12808 and bug 9858.
I don't know about range blocks, but the block log could be checked.
Per comment #1, done in r39208