The problem is that the regulating authorities decide what lines are local calls and what lines are long distance calls. Telephone numbers in North America are set up this way TCC-AC-NXX-Term. The telephone country code for North America is 001, and normally we think of dialing 1 not as a TCC but as meaning long distance. The Area Code is next and defines the area that the local number will reside. Large cities may have more than one Area Code, in rural areas the Area Code will cover many towns and small cities. The next part is the NXX and in some cases will refer to a Central Office in a small city, in large cities a Central Office will have many NXX numbers. So depending upon your location, then you may or may not have to dial a 1 before a telephone number. Some mor rural areas will not require 10 digit dialing, but may only use 7 digit dialing. At one time you might be able to connect using as few as 3 or 4 digits.
Telecommications since 1971