PHP Manual: Get the Internet Service Provider (ISP) name

Description

string geoip_isp_by_name(string $hostname)

The geoip_isp_by_name function will return the name of the Internet Service Provider (ISP) that an IP is assigned to.

This function is currently only available to users who have bought a commercial GeoIP ISP Edition. A warning will be issued if the proper database cannot be located.

Parameters

hostname: The hostname or IP address.

Return Values

Returns the ISP name on success, or false if the address cannot be found in the database.

Examples

Example #1 A geoip_isp_by_name example

This will print the ISP name of host example.com.

<?php
$isp = geoip_isp_by_name('www.example.com');
if ($isp) {
    echo 'This host IP is from ISP: ' . $isp;
}
?>

The above example will output:

This host IP is from ISP: ICANN c/o Internet Assigned Numbers Authority