sipcalc(1) on Linux
The text a1c380f3e0c1, as Debian 9 (Stretch), Debian 8 (Jessie), Debian 7 (Wheezy), Debian 6.0 (Squeeze), Debian 5.0 (Lenny), Debian 4.0 (Etch) shipped it.
IP subnet calculator
Flags it lists
-
--addr-int -
--addr-ipv4 -
--addr-ipv6 -
--all -
--cidr-bitmap -
--classful-bitmap -
--classfull-addr -
--help -
--resolve -
--split-verbose -
--subnets -
--v4inv6 -
--v6rev -
--version -
--wildcard -
-4 -
-6 -
-I -
-a -
-b -
-c -
-d -
-e -
-h -
-n -
-r -
-u -
-v -
-w -
-x