Split a parent network into equal subnets with usable ranges and paged CSV output.
This tool is archived. Recheck its method and dated data before use.
Runs offline in your browser. Once the page and required files have loaded, processing needs no internet.
Runs in your browser
Split a parent network into equal subnets with usable ranges and paged CSV output.
Runs in your browser
Inputs are processed on this page and are never sent to a server.
For network administrators: normalize the parent CIDR and split into equal prefixes. /31 uses point-to-point addressing; /32 represents one host. Browse every subnet by page; CSV contains the current page. No VLSM or network scanning.
Subnet count = 2 ^ (New subnet prefix − CIDR); Addresses per subnet = 2 ^ (32 − New subnet prefix) − 2; /31 → 2, /32 → 1
4 · Subnet count
Subnet count = 2 ^ (New subnet prefix − CIDR); Addresses per subnet = 2 ^ (32 − New subnet prefix) − 2; /31 → 2, /32 → 1
4 · Subnet count
For network administrators: normalize the parent CIDR and split into equal prefixes. /31 uses point-to-point addressing; /32 represents one host. Browse every subnet by page; CSV contains the current page. No VLSM or network scanning.
Calculations run on your device. Form inputs are not sent to a server.
For network administrators: normalize the parent CIDR and split into equal prefixes.
Enter the source text; it is processed locally.
For network administrators: normalize the parent CIDR and split into equal prefixes.
Enter a whole number; fractional counts are not valid.
Minimum: 0 · Maximum: 32
Browse every subnet by page; CSV contains the current page.
Enter a whole number; fractional counts are not valid.
Minimum: 1 · Maximum: 4294967296
Browse every subnet by page; CSV contains the current page.
Enter a whole number; fractional counts are not valid.
Minimum: 1 · Maximum: 256
For network administrators: normalize the parent CIDR and split into equal prefixes. /31 uses point-to-point addressing; /32 represents one host. Browse every subnet by page; CSV contains the current page. No VLSM or network scanning.
Calculated from your entries using the method below.
For network administrators: normalize the parent CIDR and split into equal prefixes.
Calculated from your entries using the method below.
Browse every subnet by page; CSV contains the current page.
Calculated from your entries using the method below.
Browse every subnet by page; CSV contains the current page.
Calculated from your entries using the method below.
Browse every subnet by page; CSV contains the current page.
Calculated from your entries using the method below.
For network administrators: normalize the parent CIDR and split into equal prefixes. /31 uses point-to-point addressing; /32 represents one host. Browse every subnet by page; CSV contains the current page. No VLSM or network scanning.
Calculated from your entries using the method below.
/31 uses point-to-point addressing; /32 represents one host.
Calculated from your entries using the method below.
/31 uses point-to-point addressing; /32 represents one host.
Calculated from your entries using the method below.
/31 uses point-to-point addressing; /32 represents one host.
Calculated from your entries using the method below.
Mistake: Treating a result as valid outside the described scope.
Fix: For network administrators: normalize the parent CIDR and split into equal prefixes. /31 uses point-to-point addressing; /32 represents one host. Browse every subnet by page; CSV contains the current page. No VLSM or network scanning.
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