Network
IPv4 Range Expander
Produce one dotted IPv4 address per line for an inventory fixture or configuration list.
About this tool
When to use it
Produce one dotted IPv4 address per line for an inventory fixture or configuration list.
How to use it
Enter the first and last address, select Expand range, and inspect both endpoints before copying or downloading. Keep the range small and use only the addresses your own configuration requires.
Guide updated . Examples checked against this implementation.
Worked examples
Cross an octet boundary
Input
Start: 192.0.2.254; End: 192.0.3.1Expected output
192.0.2.254
192.0.2.255
192.0.3.0
192.0.3.1Enumeration increments the unsigned address value and includes both endpoints. It does not omit .0 or .255, whose meaning depends on a subnet prefix.
Errors and unsupported input
The ending address precedes the starting addressCheck the intended interval and correct the endpoints. The tool rejects reversed ranges rather than silently swapping them.
Continue this workflow
- IPv4 Subnet Calculator: Check subnet boundaries before choosing an address interval.
Questions
Frequently asked questions
Why is a .0 address included?
The tool enumerates numeric values without a CIDR context. Whether .0 is a network address depends on the prefix.