Your best chance of finding Spring Valley Telephone Company, Inc. service is in Wisconsin, their largest coverage area. You can also find Spring Valley Telephone Company, Inc. in and many others. It is a Fiber provider, which means they deliver service faster than most other types of service by using an optical fiber rather than a copper wire. To get fiber service at your home, your fiber internet company must install specific fiber internet boxes off of which you can connect your fiber modem and router.