Not only the term East Shore, but the very concept is often attributed to New York Telephone's East Shore Central Office (now officially known as the East Staten Island Central Office), which has served this part of the island since the 1920s (the northern boundary of this office's territory is situated, on average, about ¾ mile south of the Staten Island Expressway, built in the early 1960s). Such Staten Island neighborhoods as Arrochar, South Beach, Grasmere, Dongan Hills, Grant City, Midland Beach, New Dorp, Oakwood, Old Town, Richmondtown, and Bay Terrace, along with part of Todt Hill, are usually reckoned as belonging to the East Shore, although all of Arrochar and most of South Beach and Grasmere do not qualify using the telephone company's criteria. Sometimes the communities of Rosebank, Shore Acres, and Fort Wadsworth are also described as East Shore neighborhoods.