Telephone exchange names UK in 1966, although it was not until the early 1970s that all exchange names were converted. In Paris and its suburbs, the conversion from 3L-4N to all numbers occurred in October 1963. For example, ÉLYsées became 379, LOUvre 508, PIGalle 744, POMpadour 706... But until October 1985, when an 8th number was added, it remained possible to make use of almost all the previous combinations. At least four popular songs use old telephone exchanges in their names: "PEnnsylvania 6-5000" (PE 6-5000), recorded by Glenn Miller (the inspiration for that song, the Hotel Pennsylvania in New York City, still holds
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"