Work with IP addresses and ranges

Validate an address, work out a subnet's range, or check whether an address falls inside it.

Query

An address or a CIDR range, such as 10.0.0.0/24.

Options

EnumerateList every address, for ranges of 1024 addresses or fewer.

Contains

1 credit

Needs Query.

Doing this a lot?

Same tool, as an API.

This page calls exactly the same code you would from your own program — no daily cap, 1 credit per call. See the endpoint reference.