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 Miller Six as JAR-114 in conjunction with 20th Century Fox. "Boom Shot" features a trumpet solo by Johnny Best, which is edited out in the film, with Billy May on muted trumpet, Ernie Caceres on alto saxophone, and Glenn Miller on trombone. Ray McKinley and the New Glenn Miller Orchestra recorded the song as "Boomshot" on the 1959 RCA Victor LP album "Dance Anyone?" In 2006 the Jack Million Band recorded "Boom Shot" on the album "In the Miller Mood Vol. 2". "Seven-O-Five" or "7-0-5" or "705" was an instrumental composed by Glenn Miller, arranged by Jerry Gray, and performed