[CRichards]

I'm wondering...
There's a webpage or a computer program that will tell me (for free) a phone number's:

1. City/Switch Name and State/Prov. Area Map.
2. Telephone Company.
3. Telco Type.
4. If is a cellphone or a home number.

And any other information about the number.

Also, I know one webpage, but I don't know how real is the information... I checked the information using my cellphone information and it says that my Telephone Company is SUNCOM WIRELESS OPERATING COMPANY, LLC when I know for a fact it's AT&T.

[Hellraiser]

This info should be available at your service provider's website. However you can't check the cellphone details but u can check the landline details.

Like in Delhi, Our Landline service provider MTNL provides the details of the customer by entering the number at this page. http://phonebook.bol.net.in/tel1.html
You can try entering any 8 digit number starting with 2. For example enter 29812211, if will give you the correct address of the person who owns this number.