sipcalc

Install command: 
brew install sipcalc

Advanced console-based IP subnet calculator

https://www.routemeister.net/projects/sipcalc/

/api/formula/sipcalc.json (JSON API)

Formula code on GitHub

Bottle (binary package) installation support provided for macOS releases:

Intel big sur ✅
catalina ✅
mojave ✅
high sierra ✅
sierra ✅
el capitan ✅
yosemite ✅
Apple Silicon big sur ✅

Current versions:

stable ✅ 1.1.6

Analytics:

Installs (30 days)
sipcalc 152
Installs on Request (30 days)
sipcalc 152
Build Errors (30 days)
sipcalc 0
Installs (90 days)
sipcalc 517
Installs on Request (90 days)
sipcalc 516
Installs (365 days)
sipcalc 1,891
Installs on Request (365 days)
sipcalc 1,890
Fork me on GitHub