Fastest Carrier For Apple's iPhone 4S:AT & T

 A picture is worth thousand words.OpenSignalMaps,a survey agency conducted  46,000 speedtests from users spread all over the U.S using an Android App(Ironic isn't it?) to see who leads & who lags & by how much.As its clearly evident AT & T were the fastest in 31 states,with Verizon hitting an abysmal 6,Sprint no where in the picture & the greyed out states data are unreliable so its rejected.
                                                       Although this doesn't mean that AT & T is the fastest,but it can be implied that it will be fastest in the states which it had emerged winner where as may not be in the other states.Lets take a look @ the upload & download features of HSPA & HSPA+ technologies as shown below:

  Now to see for the most affordable Carrier service for the Iphone 4S by taking a standard 16GB iPhone device.

                                                  Now filtering the various plans available & if you want the lowest tariff network irrespective of the data speed then Sprint is the cheapest with a lowest monthly tariff of $69.99.Now incase you want to analyze the results yourself by setting up a few filtering conditions your self then head over here & check it out yourself.