Algebra teacher, Mr. Raymond Peterson, would probably have had a good laugh if, at the beginning of the 1960-61 school year, one of his students asked, how do you figure out how many seven digit telephone phone numbers are possible in the Peebles area? The problem wouldn't have made much sense to most. But the telephone universe was rapidly changing and Peebles was being confronted with something new called ANC, All Number Calling.
The Georgetown district of The General Telephone Company was made up of four telephone exchanges in Adams County: Peebles, Manchester, Seaman and West Union, and the Sinking Spring exchange that included parts of Adams, Highland and Pike Counties. That amounted to approximately 2,500 phones covering an area of 525 square miles. Robert L. Keatley, commercial manager of General Telephone's district office in Georgetown, said the installation of ANC was part of the development of a world-wide telephone numbering system, that was being assembled so that anyone, anywhere could call anyone, anywhere by dialing a series of designated numbers without any assistance from anyone.