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 ten songs with the Clark Randall orchestra in March 1935. "Icky Morgan" was released as a Brunswick 10 inch 78 single in 1935 as Brunswick 7415 backed with "Troublesome Trumpet". The song appears on the 2001 compilation album "Bob Crosby and His Orchestra: And Then Some, Parts 1 and 2 of the Complete Discography" on Halcyon, HALC 142, and the 2005 compilation series "The Glenn Miller Story, Vol. 1-2" on Avid Entertainment. "Doin' the Jive" was composed by Glenn Miller and Chummy MacGregor in 1937 and recorded for Brunswick on November 29, 1937, and released as Brunswick 8063 with "Humoresque"