CascadiaPHP 2024


(PECL geoip >= 1.0.2)

geoip_isp_by_nameGet the Internet Service Provider (ISP) name


geoip_isp_by_name(string $hostname): string

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.



The hostname or IP address.

Return Values

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


Example #1 A geoip_isp_by_name() example

This will print the ISP name of host

= geoip_isp_by_name('');
if (
$isp) {
'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

add a note

User Contributed Notes

There are no user contributed notes for this page.
To Top