(PECL geoip >= 1.1.0)
Get the Autonomous System Numbers (ASN)
string geoip_asnum_by_name ( string $hostname )
The geoip_asnum_by_name() function will return the Autonomous System Numbers (ASN) associated with an IP address.
Parameters:
hostname
The hostname or IP address.
Returns:
Returns the ASN on success, or FALSE if the address cannot be found in the database.
Examples:
A geoip_asnum_by_name() example
This will output the ASN of the host www.example.com.
<?php
$asn = geoip_asnum_by_name('www.example.com');
if ($asn) {
echo 'The ASN is: ' $asn;
}
?>
The above example will output:
The ASN is: AS15133 EdgeCast Networks, Inc
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