The first two lines (deny statements) are indicative of what I did. By the way, I don't control the main configuration of the host (server), so I had to use this file.
# vi .htaccess
order allow,deny
allow from all
deny from xxx.xxx.xx.xxx
deny from xxx.xxx.xxx.xxx
deny from xx.xxx.xx.
deny from xxx.xx.
deny from xx.
:wq!
Here's a screenshot (so tags shows up on this Blogger post) with the tags:
Extra:
If you are trying to block IPs on the Blogger.com platform, see this post: How to block IPs on Blogger.com