https://github.com/brh55/ip-class

:capital_abcd: Return the classful network class (A, B, C, D, E) of an IPv4 address
https://github.com/brh55/ip-class

classful-networks ipv4 networking subnet

Last synced: 30 days ago
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:capital_abcd: Return the classful network class (A, B, C, D, E) of an IPv4 address

• Host: GitHub
• URL: https://github.com/brh55/ip-class
• Owner: brh55
• License: mit
• Created: 2017-01-31T06:35:46.000Z (almost 8 years ago)
• Default Branch: master
• Last Pushed: 2017-02-03T17:54:52.000Z (almost 8 years ago)
• Last Synced: 2024-08-09T03:10:36.017Z (3 months ago)
• Topics: classful-networks, ipv4, networking, subnet
• Language: JavaScript
• Homepage:
• Size: 37.1 KB
• Stars: 0
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: readme.md
  • License: license

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README

        
# ip-class [![Travis](https://img.shields.io/travis/brh55/ip-class.svg?style=flat-square)](https://travis-ci.org/brh55/ip-class) [![XO code style](https://img.shields.io/badge/code_style-XO-5ed9c7.svg?style=flat-square)](https://github.com/sindresorhus/xo)

> Get the IPv4 address class of an ip address for classful networks

## Install

```

$ npm install --save ip-class

```

## Usage

```js

const ipClass = require('ip-class');

ipClass('127.255.255.255');

//=> 'A'

ipClass('191.255.255.255');

//=> 'B'

ipClass('223.255.255.255');

//=> 'C'

ipClass('239.255.255.255');

//=> 'D'

ipClass('255.255.255.254');

//=> 'E'

```

## API

### ipClass(ip)

*Returns the class of the ip*

#### ip

Type: `string`

A valid IPv4 address.

## Related

[min-host-bits](https://github.com/brh55/min-host-bits) - 💻 Calculate minimum host bits needed for desired number of hosts

[min-prefix-length](https://github.com/brh55/min-prefix-length) - 🔢 Calculate the minimum prefix length for an IPv4 subnet based on a desired number of host

[filter-ips](https://github.com/brh55/filter-ips) - :no_entry: Filter a list of IPv4 addresses based on a list of exclusion IPs or addresses containing wildcards.

## License

MIT © [Brandon Him](https://github.com/brh55)