I don't know for sure how you call this, but it looks likes this:
(---.a2000.nl)
(---.speed.planet.nl)
(---.upc-d.chello.nl)
(---.dial.12move.nl)
But how can you get this 'information' with php?

    I believe ur looking for a trace of this route.
    Can't find anything tho.

      gethostbyaddr($ipaddress)
      will return a host name. Note that not all IP addresses have a valid host name associated with it.

      So if you put in an IP address nad it returns a valid hostname, you would then want to write a little code that will chop off the host part of the address. You could do something like this:
      $hostname = gethostbyaddr($ipaddress);
      $names = explode('.', $hostname);
      shift($names); // gets rid of the first part
      $modified_hostname = implde('.', $names);

      This will turn the hostname dialup221.fl.someisp.net into fl.someisp.net. You can then do this:

      $modified_hostname = '(---.'.$modified_hostname.')';

      to get the above format.

      Check out the string and array function to get more info on this.

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