Re: in-addr.arpa?

Um, because someone has a recond in their in-addr.arpa zone file for that IP address that looks like one of the following:

104 IN PTR ip104.44.136.216

Actually, as the zone is 44.136.216.in-addr.arpa., I'd be tempted to say they've just put 104 IN PTR ip104 Simon -- Simon Lockhart | Tel: +44 (0)1737 839676 Internet Engineering Manager | Fax: +44 (0)1737 839516 BBC Internet Services | Email: Simon.Lockhart@bbc.co.uk Kingswood Warren,Tadworth,Surrey,UK | URL: http://support.bbc.co.uk/