On Mon, 15 Sep 2025, 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 :-)
I'm going to lead with echoing the sentiment: a spreadsheet is the wrong
tool for this job. There are numerous free IPAM applications purpose
built for, you know, managing IP address space...but just a bit of
googling turned up recommendations for IP Tools for Excel (which I've
never used / never heard of until a minute ago) which may be helpful.
https://ip-tools-for-excel.software.informer.com/
At least it's not a stack of copy paper with each sheet representing a /24
(the IPAM I inherited at my second ISP job).
----------------------------------------------------------------------
Jon Lewis, MCP :) | I route
Blue Stream Fiber, Sr. Neteng | therefore you are
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