PHOENIX--(BUSINESS WIRE)--After nearly five years without taking a rate increase, Cable ONE (NYSE:CABO) has announced to customers that it will increase rates on residential high speed internet plans by $5.00 per month beginning with October 2015 billing statements. About Cable ONE Cable ONE is among the 10 largest cable companies in the U.S. Formerly a wholly-owned subsidiary of Graham Holdings Company (previously The Washington Post Company), Cable ONE became a publicly traded company in July