This is a list of United States telephone companies.
The Regional Bell Operating Companies (RBOCs) are the result of the break-up of the Bell System in 1984. After numerous mergers, asset sales, and renamings since the break-up, these are the current successor RBOCs:
In the following states and regions, the primary local carrier (ILEC) is not an RBOC:
Many other individual communities or smaller regions are also served by non-RBOC companies.