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 Omaha on October 8, 1942, to the Seventh Service Command as a captain in the Army Specialist Corps. Miller was soon transferred to the Army Air Forces. Captain Glenn Miller served initially as assistant special services officer for the Army Air Forces Southeast Training Center at Maxwell Field, Montgomery, Alabama, in December 1942. He played trombone with the Rhythmaires, a 15-piece dance band, in both Montgomery and in service clubs and recreation halls on Maxwell. Miller also appeared on both WAPI (Birmingham, Alabama) and WSFA radio (Montgomery), promoting the activities of civil service women aircraft mechanics employed at Maxwell. Miller