PEnnsylvania 6-5000 imposed on all of New York City, including calls within the same area code. Letters from the original named exchange prefixes are occasionally spotted on old signage in the city, but are increasingly rare. Many big band names played in the Hotel Pennsylvania's Café Rouge, including the Glenn Miller Orchestra. The phone number became the inspiration for the Glenn Miller 1940 Top 5 "Billboard" hit of the same name. The number was used in the Milli Vanilli song, "Baby Don't Forget My Number", near the end. The number also inspired the pun title "Transylvania 6-5000", used separately as titles for
Glenn Miller discography performed, recorded, and broadcast on the "I Sustain the Wings" radio program, Program No.15, on May 5, 1944 and on November 10, 1945. Larry O'Brien and the Glenn Miller Orchestra recorded the song on the 2006 album "Steppin' Out". "I Sustain the Wings" was composed by Glenn Miller, Chummy MacGregor, Norman Leyden and Bill Meyers. This was the theme music for the radio program that was broadcast weekly on Saturday on NBC from June 1943 to June 10, 1944 by the Army Air Force Band under the direction of Captain Glenn Miller. The radio show was on CBS. Miller was