Do you have Windows 7?, Do you live in Chile?, Do you use for mobile web?. Now, there is one more option to find out which company is a mobile number using IE8 Accelerator
An Accelerator or throttle is a quick way to access a Web service application or through a contextual menu.
This itself is an adaptation of the program developed by Alexander, buscaCel Windows and J2ME, now in web version.
For Mobile Web version, here
This program in Win32 version and J2ME MIDP 2.0 allows you to know that a particular company's cellular telephone number.
25-09-07 Version 1.1 by Alexander Kites (alexandervolantines (at) gmail.com)
PS: it's free.
Download here:
11/09/2008: The official site is CeluChile www.celuchile.cl. There you can find new versions of the program, a free and a Premium Light paid.
