User talk:2600:387:1:811:0:0:0:40

I noticed today, after accidentally pressing the edit button on my cell phone, that I have been blocked from editing. I have not edited anything since the late summer, and before that it had been some years. When I looked at the activity log I saw edits I never did. I realize this user name is for a group of AT&T mobile users, but I am confused by blocking an IP address wholesale.