If you have heard even something about DSL, you will have heard about distance. Your phone lines normally terminate at a telco office, usually nearby. This distance, (the length of your line between your location and the telco office), is a very important factor in whether or not you can get DSL, and what speed you can get. The gauge of the copper lines may also be a factor.
Here are some rules of thumb for distance ranges. Please be aware that especially with non Telco ADSL lines, distance limits for speeds can vary widely from company to company. There are cases where it is policy for "residential" DSL lines not to be offered as far out as functionally identical "business" products!
The subject of distance and DSL is so important, we've added a special page for it, check this for detailed distance information per DSL network : Distance charts.
Note: The information below is not recent, and is probably not accurate any longer.
PLEASE NOTE: I did not write the original material here, I simply updated the FAQ with info that was relevant at the time, around eight years ago. If you have updated valid info please use the link at the bottom to submit your remarks and updated info.
Also read About DSL for lots more information