Network Range Calculator
Find the first and last IPv4 addresses in a CIDR network.
Calculator
Result
About this calculator
Find the first and last IPv4 addresses in a CIDR network.
Enter valid values, then select Calculate. The calculation runs in your browser and does not require an account.
How to use this calculator
What to enter
Enter or select the following as requested: Network address; CIDR prefix length. Follow the units, valid ranges, examples, and options displayed beside each field.
What the result means
The statistic summarizes the entered data using the measure named by the calculator. Results depend on the supplied observations and, where applicable, whether the data are treated as a sample or an entire population.
When to use it
Use this to summarize or compare a dataset. Check data quality, missing values, units, and the sample-versus-population convention before interpreting the statistic.