The Chesapeake and Potomac Telephone Company, usually known as C&P Telephone, is a former d/b/a name for four Bell Operating Companies providing service to Washington, D.C., Maryland, West Virginia, and Virginia. Today, three of the companies are owned by Verizon Communications: The Chesapeake and Potomac Telephone Company (DC), The Chesapeake and Potomac Telephone Company of Maryland, and The Chesapeake and Potomac Telephone Company of Virginia.The Chesapeake and Potomac Telephone Company of West Virginia is owned by Frontier Communications.