Can a cell phone contract be terminated without incurring early termination fees?

Depends on the reason you have for wanting to terminate the agreement. Did you have an unlimited data plan with AT&T? You need a better reason...

Do you have to have a phone number to have internet. Our local phone comp requires us to pay for a phone line to have the net.

What type of Internet service are they providing? Is it DSL or fiber optic? If it is DSL you will need a phone number.

How can I sue AT&T?

Before I can answer this question, I need to know what exactly AT&T did. Can you provide me with more details?

Law suite against AT@T

Phone companies are required to transfer your phone number from one provider to another. This does not appear to be the case here, as you state...

Unfortunately, they can. I do not know about every wireless mobile company, but for example, Verizon started insisting that every customer have a...

Why does this site refuses to answer my question about a satellite service provider?

It depends on what you contract states; the contract may call for binding arbitration.