The original set of IP address came from Wikipedia.
Know of any IP address ranges that should be included, that are already not included? You have a couple of options to contribute. If you're familiar with Github and the Pull Request process, have at it! If you're not familiar with that process, please create a New Issue, and we'll work through the getting your contirbutions included that way.
When you are contributing IP address ranges, please provide a source and/or documentation. For instance, including a stable uri to the source in the commit message and/or issue. Additionally, it is very helpful if each pull request containins only an addition or modification to a single agency. Please check to make sure your additions are valid. For example,
python -m json.tool or
:%!python -m json.tool in Vim.
No need to contribute RCMP IP ranges, there is already an rcmp_edits account.
Sources used for information on IP ranges came from: