nanog mailing list archives

Re: IP Address support in spreadsheets?


From: Mark Wiater via NANOG <nanog () lists nanog org>
Date: Tue, 16 Sep 2025 10:55:41 -0400

This extension also has google sheets and microsoft excel support, kinda nice.  http://trk.free.fr/ipcalc/



On 9/15/2025 5:29 PM, Trey Scarborough via NANOG wrote:
I do this a bunch for importing and exporting equipment in to different systems. I have used the google ipfunctions, but I mainly work in libre calc for that I used to have some of the functions programed in a sheet then I found this and just added the macros https://extensions.libreoffice.org/en/extensions/show/ip-calculator

On 9/15/25 1:30 PM, Bryan Fields via NANOG wrote:
Has anyone found a solution to represent IPv4 addresses in a spreadsheet, preferably Google Sheets?  I'm not here to debate the use of spreadsheets for tracking IP addresses, just find something better than storing v4 dotted decimal as text in a spreadsheet. We don't need v6 at this time; we're using a spreadsheet for tracking addressing, v6 is beyond us.

At minimum we need to store it as a 32 bit INT, and display as dotted decimal.  If there's some way to make it aware of subnet slash notation, so much the better.  I'm a bit at a loss as to why there's no IPv4 number format with how often spreadsheets are the source of truth in some rather large service providers.

Again, not looking for non-spreadsheet solutions to this, and ideally a web interface spreadsheet would be best for sharing. We don't need a real database if it's on the web :-)

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