|Industry||Cable TV, Broadband phone, Internet|
|Founded||1986 as Post-Newsweek Cable|
|Headquarters||Phoenix, Arizona, USA|
|Key people||Thomas O. Might, President & CEO|
|Owner(s)||Washington Post Company|
Cable One, Inc. (branded as Cable ONE) is a United States cable service provider and subsidiary of The Washington Post Company, functioning as its own self-contained corporation within its parent company. The company's name and current focus dates back to 1997; prior to that time the company was known as Post-Newsweek Cable. It is headquartered in Phoenix, Arizona.
Cable ONE is the 10th largest cable provider in the USA, serving more than 700,000 customers in 19 states with high speed internet, cable television, and telephone service. Cable ONE offers wireless Internet service, High-Definition programming, and phone service with free local calling, and free unlimited long distance calling in the continental U.S.
Service areas 
Cable ONE currently provides service in 19 U.S. states including Alabama, Arizona, Arkansas, Idaho, Iowa, Kansas, Louisiana, Minnesota, Mississippi, Missouri, Nebraska, New Mexico, North Dakota, Oklahoma, Oregon, Tennessee, Texas, South Dakota, and Washington.
Cable Internet service 
Excessive Use, defined as greater than 3GB (combined up and downloaded data) for the 5Mbit/s plan, per day, if done over half the days of the billing cycle (one month) can result in action taken to limit bandwidth use. For the 10Mbit/s plan, its 5GB a day combined up and downloaded data. The Excessive Use policy applies to a 24 hour time frame and is not affected by the "peak hours" of noon to midnight. See Cableone's Acceptable Use policy for more detail. Business plans are also offered with greater speed and higher data/bandwidth allotments.
Cable One has recently introduced two(2) 50Mbit/s & a 15Mbit/s down plans. These plans have a monthly data plan allotment of 50GB. For each additional GB, they charge $0.50, and 1 of the 50Mbit/s offers the bonus 50 GB to data plan allotment of 100GB.
Each of their Internet plans are never to exceed $50 in a billing cycle for any overages on any residential plan.