Currently 3U Telecom and Pioneer Telephone are the only long distance providers compared at LowerMyPhone.com that do not charge a monthly fee. The other discount long distance carriers listed like ECG, Opex, and TCI charge very minimal monthly fees ranging from $0.27 to $0.99 a month on certain plans. From the long distance section you will want to select your State, enter your area code and prefix, and a list of available providers and plans will appear. Information about the monthly fee is provided directly under the plan title.
