In the United States and Canada, area codes were first allocated in 1947.
In some large cities they were used soon after as operator routing codes for connecting long-distance telephone calls between toll switching centers.
A broad division is commonly recognized, distinguishing open numbering plans and closed numbering plans.
Many numbering plans subdivide their territory of service into geographic regions designated by a prefix, often called an area code or city code, which is a set of digits forming the most-significant part of the dialing sequence to reach a telephone subscriber.
I uninstalled it and the problem was solved after a restart.message in console, but not for 1 port, for all random ports.I have done what's stated in this question, but with no luck. In fact, these problems started after the upgrade to Windows 8.the sequence of digits required to reach a destination.Even in closed numbering plans, it is not always necessary to dial all digits of a number.