The Code of Practice for Determining Employment or Self-employment Status of Individuals (pdf) contains criteria which can be used to clarify whether a person is employed or self-employed. In most cases, it is clear whether a person is an employee or not.
The 708 area code belongs to the state of Illinois (IL) and some of the locations covered are Cicero, Oak Park and more:
Home | 668 Area Code. The 668 area code is NOT a valid area code. This area code is NOT officially assigned to a known Numbering Plan Area (NPA). The 668 area code is not assigned to a city/state location. In most cases with invalid area codes like 668, tend to be used by phone numbers from telemarketing companies.he 668 area code is NOT a valid area code. This area code is NOT officially assigned to a known Numbering Plan Area (NPA).