North American Numbering Plan usually shown in capital letters, were dialed. Later, the third letter, where implemented, was replaced by a digit, or an extra digit was added. This generally happened after World War II, although New York City converted in 1930. The adoption of seven-digit local numbers (2L-5N) was chosen as the requirement for direct distance dialing and progressively deployed starting the late 1940s. The famous Glenn Miller tune "PEnnsylvania 6-5000" refers to telephone number PE6-5000, a number still in service at the Hotel Pennsylvania (212 736-5000) in New York. Similarly, the classic film "BUtterfield 8" is set in the East Side of
Glenn Miller (1945 album) McIntyre, Tex Beneke, Wilbur Schwartz, Stanley Aronson, Al Klink; Trumpets: Bob Price, R. D. McMickle, Legh Knowles; Trombones: Glenn Miller, Paul Tanner, Al Mastren; Piano: Chummy MacGregor; String Bass: Rowland Bundock; Guitar: Allen Reuss; Drums: Moe Purtill. The personnel for "Stardust": Saxes: Hal McIntyre, Tex Beneke, Wilbur Schwartz, Jimmy Abato, Al Klink; Trumpets: Clyde Hurley, John Best, R. D. McMickle, Legh Knowles; Trombones: Glenn Miller, Howard Gibeling, Paul Tanner, Frank D'Annolfo; Piano: Chummy MacGregor; String Bass: Rowland Bundock; Guitar: Richard Fisher; Drums: Moe Purtill. The personnel for "Pennsylvania Six-Five Thousand": Saxes: Hal McIntyre, Tex Beneke, Wilbur Schwartz, Ernie Caceres, Al