// FREE IT TOOLS

IP Range Finder

Enter any IPv4 subnet in CIDR notation to list every usable host IP address in the range.

// ENTER NETWORK (CIDR NOTATION)

examples:

Enter a network in CIDR notation to list all usable IP addresses

When to List All IPs in a Subnet

Most network tasks only need the subnet’s first and last usable addresses — but sometimes you need the full list. Here are the common scenarios where listing every IP is essential:

Static address assignments: When configuring servers, printers, or network infrastructure with fixed IPs, you need to see which addresses are available to assign without collision.
IP allocation audits: Documenting every address in a VLAN or subnet helps identify unused IPs, conflicts, and gaps in DHCP scopes during network reviews.
Large subnets are impractical: While this tool supports any subnet size, listing every IP in a /16 (65,534 hosts) or larger produces thousands of rows. Use pagination to browse, or export results for offline analysis.

RFC 1918 private ranges are the most common subnets engineers need to enumerate. The three private blocks are:

10.0.0.0/810.0.0.0 – 10.255.255.255 (16.7 million addresses)
172.16.0.0/12172.16.0.0 – 172.31.255.255 (1 million addresses)
192.168.0.0/16192.168.0.0 – 192.168.255.255 (65,536 addresses)

For a typical small office using 192.168.1.0/24, this tool lists all 254 usable addresses. For a corporate network carved from the 10.0.0.0/8 block, paginated output keeps the results manageable.

Frequently Asked Questions

How do I find all IP addresses in a subnet?: Enter the network address in CIDR notation (e.g. 192.168.1.0/24) into the tool above. It calculates the network and broadcast addresses, then lists every usable host IP between them. For large subnets, results are paginated so the page stays responsive.
Why are the first and last IPs not usable?: In a standard subnet, the first address (all host bits zero) is the network identifier and the last address (all host bits one) is the broadcast address. Neither can be assigned to a host. For a /24, that means x.x.x.0 and x.x.x.255 are reserved, leaving x.x.x.1 through x.x.x.254 as usable addresses.
What about /31 and /32 subnets?: /31 networks (RFC 3021) are a special case for point-to-point links — both addresses are usable hosts with no network or broadcast address. /32 represents a single host and has exactly one usable address. This tool handles both cases correctly.
How many usable IPs are in a /24 subnet?: A /24 subnet contains 256 total addresses (2⁸). Two are reserved for the network and broadcast addresses, leaving 254 usable host addresses — from x.x.x.1 to x.x.x.254.
Can I list all IPs for a /16 or larger subnet?: Yes — the tool supports any valid IPv4 CIDR from /0 to /32. A /16 contains 65,534 usable hosts, and a /8 contains over 16 million. Results are paginated (e.g. 256 per page) so even the largest subnets remain browseable without overwhelming your browser.

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When to List All IPs in a Subnet

Most network tasks only need the subnet’s first and last usable addresses — but sometimes you need the full list. Here are the common scenarios where listing every IP is essential:

Static address assignments: When configuring servers, printers, or network infrastructure with fixed IPs, you need to see which addresses are available to assign without collision.
IP allocation audits: Documenting every address in a VLAN or subnet helps identify unused IPs, conflicts, and gaps in DHCP scopes during network reviews.
Large subnets are impractical: While this tool supports any subnet size, listing every IP in a /16 (65,534 hosts) or larger produces thousands of rows. Use pagination to browse, or export results for offline analysis.

RFC 1918 private ranges are the most common subnets engineers need to enumerate. The three private blocks are:

10.0.0.0/810.0.0.0 – 10.255.255.255 (16.7 million addresses)
172.16.0.0/12172.16.0.0 – 172.31.255.255 (1 million addresses)
192.168.0.0/16192.168.0.0 – 192.168.255.255 (65,536 addresses)

For a typical small office using 192.168.1.0/24, this tool lists all 254 usable addresses. For a corporate network carved from the 10.0.0.0/8 block, paginated output keeps the results manageable.

Frequently Asked Questions

How do I find all IP addresses in a subnet?

Enter the network address in CIDR notation (e.g. 192.168.1.0/24) into the tool above. It calculates the network and broadcast addresses, then lists every usable host IP between them. For large subnets, results are paginated so the page stays responsive.

Why are the first and last IPs not usable?

In a standard subnet, the first address (all host bits zero) is the network identifier and the last address (all host bits one) is the broadcast address. Neither can be assigned to a host. For a /24, that means x.x.x.0 and x.x.x.255 are reserved, leaving x.x.x.1 through x.x.x.254 as usable addresses.

What about /31 and /32 subnets?

/31 networks (RFC 3021) are a special case for point-to-point links — both addresses are usable hosts with no network or broadcast address. /32 represents a single host and has exactly one usable address. This tool handles both cases correctly.

How many usable IPs are in a /24 subnet?

A /24 subnet contains 256 total addresses (2⁸). Two are reserved for the network and broadcast addresses, leaving 254 usable host addresses — from x.x.x.1 to x.x.x.254.

Can I list all IPs for a /16 or larger subnet?

Yes — the tool supports any valid IPv4 CIDR from /0 to /32. A /16 contains 65,534 usable hosts, and a /8 contains over 16 million. Results are paginated (e.g. 256 per page) so even the largest subnets remain browseable without overwhelming your browser.