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.
|less than 5000||You will have little trouble getting all speeds of DSL|
|5000-10600||You may have trouble getting the highest speeds on offer|
|10600-15000||The danger zone for DSL from national CLECs like Covad and NorthPoint. Speeds on offer are pinned back steadily until they reach 192k for 15,000 feet. If your line is longer than around 15000 feet, they may not accept an order.|
|15000-18000||In this range, Telco ADSL is normally still available, although it may be restricted to 300-500k speeds|
|18000-22000||Telco ADSL is not available, although in a few areas, RADSL may be a product you can get. RADSL is speed-variable.|
Some smaller DSL specialist CLECs may have solutions for you.
|22000-28000||Using less commonly used DSL equipment, it is still possible to use lines of this length.|
|18000-28000||IDSL is an alternative or possibly the only alternative. IDSL is 144k/sec, about four-six times modem speed.|
|28000-38000||IDSL is the only alternative|
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.
last modified: 2012-03-06 12:42:44