The National Telecommunications and Information Administration (NTIA) has recently made a great web site available to all of us that maps and lists broadband service providers, by area. Simply go to this link: www.broadbandmap.gov
The online broadband database apparently holds more than 25 million records detailing where service is available; technology used to provide service; maximum advertised speeds; and names of service providers.
All you have to do is enter your address (you can be general like town and state) and you will receive a report. You can also advise of errors in the database from the output screen.