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asn-from-ip

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asn-from-ip

This tiny module allows you to get ASN information for each IP address. The output includes IP suffixes, AS type, AS country, AS organisation and so on...

1.0.5

latest

npm

Version published: 2 years ago

Weekly downloads: 2

Maintainers: 1

Weekly downloads

Created: 2 years ago

Source

IP to ASN

This tiny package allows you to obtain ASN meta information for any IP address. Some IP addresses are of course not assigned to an ASN.

Installation

npm install asn-from-ip

If you want to clone the repository directly from GitHub instead:

git clone git@github.com:ipapi-is/ip_to_asn.git

Usage from Node.js

Lookup the IP address 95.91.211.148:

const { ipToASN } = require('asn-from-ip');

(async () => {
  console.log(await ipToASN('95.91.211.148'));
})();

which outputs (at the time of writing):

{
  asn: 3209,
  route: '95.88.0.0/14',
  descr: 'VODANET International IP-Backbone of Vodafone, DE',
  country: 'de',
  active: true,
  org: 'Vodafone GmbH',
  domain: 'vodafone.com',
  abuse: 'abuse.de@vodafone.com',
  type: 'isp',
  created: '2002-09-11',
  updated: '2023-10-12',
  rir: 'ripe',
  whois: 'https://api.ipapi.is/?whois=AS3209'
}

Most IP addresses can be associated with an Autonomeous System (AS). The return value of ipToASN() is an object with the following attributes:

asn - int - The AS number
route - string - The IP route as CIDR in this AS
descr - string - An informational description of the AS
country - string - The country where the AS is situated in (administratively)
active - string - Whether the AS is active (active = at least one route administred by the AS)
domain - string - The domain of the organization to which this AS belongs
org - string - The organization responisible for this AS
type - string - The type for this ASN, this is either hosting, education, goverment, banking, business or isp
created - string - When the ASN was established
updated - string - The last time the ASN was updated
rir - string - To which Regional Internet Registry the ASN belongs
whois - string - An url to the whois information for this ASN

For inactive autonomeous systems, most of the above information is not available.

Usage from the Browser

Copy the browser JavaScript bundle to your preferred location. After installing the module with

npm install asn-from-ip

you can find the minified JavaScript here: node_modules/asn-from-ip/dist/ipToASN.min.js

<!doctype html>

<html lang="en">

<head>
  <meta charset="utf-8">
  <title>IP to ASN Example Browser</title>
  <meta name="description" content="IP to ASN Example">
  <meta name="author" content="ipapi.is">
</head>

<body>
  <pre id="asn"></pre>
  <script type="text/javascript" src="dist/ipToASN.min.js"></script>
  <script type="text/javascript">
    ipToASN('95.91.211.148').then((res) => {
      document.getElementById('asn').innerText = JSON.stringify(res, null, 2);
    });
  </script>
</body>

</html>

Use the Database Directly

This package uses the ipapi.is API in order to avoid shipping a huge database in the npm module. If you have a large volume of IP addresses to lookup, you can download the full & free ASN Database.

GitHub mirror of the database: ASN Database Mirror

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Package last updated on 22 Oct 2023

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Install

asn-from-ip

IP to ASN

Installation

Usage from Node.js

Usage from the Browser

Use the Database Directly

Keywords

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