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Applying an indefinite block to this IP is not appropriate, unless it is a soft block, because the IP address will later be reallocated to a different, unrelated, and unsuspecting user, thereby impairing access to Wikipedia in an inappropriate fashion. Caution should be used when blocking this IP or reverting its contributions without checking.
The best approach is to determine the CIDR IP numerical address range and make a higher-level decision to soft-block the entire range. http://www.arin.net/ (for approximately North America) and related sites can help to identify that range. Caution is advised when applying a range block as other Wikipedians, both registered and otherwise, may be affected.
Review contributions carefully if blocking this IP address or reverting its contributions. If a block is needed, administrators should consider a soft block using Template:Anonblock.
Hello, I'm Mark Arsten. I wanted to let you know that I undid one or more of your recent contributions to Chicago because it did not appear constructive. If you would like to experiment, please use the sandbox. If you think I made a mistake, or if you have any questions, you can leave me a message on my talk page. Thanks! Mark Arsten (talk) 00:34, 21 February 2014 (UTC)
- If this is a shared IP address, and you did not make the edits, consider creating an account for yourself so you can avoid further irrelevant notices.
This is the discussion page for an IP user, identified by the user's IP address. Some IP addresses change periodically, and may be shared by several users. If you are an IP user, you may create an account or log in to avoid future confusion with other IP users. Registering also hides your IP address.