Yes, you are right most of the sites I have seen only work for listed land line numbers but can I trace a mobile phone number for free? Mobile phone numbers, unlike their land line counterparts, are regarded as private properties which is why mobile phone number list there is no officially free directories where you can lookup the details of the person this type of phone mobile phone number list are registered to. This does not however mean you can not trace a mobile phone number for free.
The difference here is that using directories such as whitepages.com will not get you the desired results. Sites such as zabasearch.com, reverse phone directory mobile phone number list whitepages.com will only work for land line numbers but you will only get redirected to a paid service should you try using any of these sites to trace a mobile phone number list or even an unlisted number. It is however possible to trace a mobile phone number using Google.
All you need to do is to type the number you are trying to trace into the search box of Google (doesn't have to be Google I am only using Google as an mobile phone number list example cos they are the biggest search engine at the moment) click on the search box and then look to the display results to see if something good pops up. It is however important not to mobile phone number list waste too much time on this method. If you can't find anything that relates to the number in the first 2 pages of Google then you probably will not find it anywhere else as the effectiveness of this method depends solely on if the number you are trying to trace has been listed anywhere on the internet.