Studies in the United States: Banks, Long distance calls

뀀 Long distance calls
The telephone numbers in the U.S. are 10 digits: area code 3 digit area code and 3 digit code 4 digit subscriber.
You can make long distance calls through the operator (by dialing "0", which is free and can be accessed from any private or public phone no coins), but will cost. It is cheaper to call after 17 hours (saving 35%) or between 23 and 8 hours (60% savings). F or