On 2025-09-15 13:30, 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 :-)
If you're not allergic to MS Excel, you could use Python for Excel to
convert back and forth with the excellent ipaddress module.
https://www.google.com/?q=google%20sheets%20ip%20functions turned up an
interesting add-on, have you looked into IP Functions at all?
Could also just roll your own inet_aton() in your columns for the dotted
quads using LEFT(), MID(), RIGHT(), and FIND().
Or just spin up Netbox and load your prefixes into that and be done.
-Brian
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