ipcalc

Install command: 
brew install ipcalc

Calculate various network masks, etc. from a given IP address

https://jodies.de/ipcalc

License: GPL-2.0-or-later

Formula JSON API: /api/formula/ipcalc.json

Formula code: ipcalc.rb on GitHub

Bottle (binary package) installation support provided.

Current versions:

stable ✅ 0.51

Analytics:

Installs (30 days)
ipcalc 503
Installs on Request (30 days)
ipcalc 485
Build Errors (30 days)
ipcalc 0
Installs (90 days)
ipcalc 1,575
ipcalc --HEAD 2
Installs on Request (90 days)
ipcalc 1,539
ipcalc --HEAD 2
Installs (365 days)
ipcalc 6,174
ipcalc --HEAD 10
Installs on Request (365 days)
ipcalc 6,085
ipcalc --HEAD 10