* East Region: Optimum Voice by Cablevision, followed by Cox and Windstream
* South Region: Bright House Networks, followed by Cox and Verizon
* North Central Region: WideOpenWest (WOW!), followed by Cincinnati Bell and TDS Telecom
* West Region: Cox, followed by Time Warner Cable and Qwest
The study is based on responses from 24,146 customers nationwide who receive their local and long distance telephone service from one provider.