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IPinfo CLI vs ipcalc: catalog facts
IPinfo CLI	ipcalc
Free The CLI is free to download; lookups use the IPinfo API.	Free Free and open source under the GPL.
Windows, Command line	Linux, Command line
Bulk IP and ASN lookups from the terminal Helper tools for CIDR and range conversion	Handles IPv4 and IPv6 with machine-readable output for scripting Removes an entire class of subnetting arithmetic mistakes
Lookups depend on the IPinfo online service Tied to a single commercial data provider	Several unrelated programs share the name ipcalc, which causes confusion Command line only
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License: GPL-2.0
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked September 22, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.