Category:Telephone Exchange Names

A telephone number format, common in the 1950s and 1960s (although its history goes back further in large cities), in which a six or seven-digit local telephone number was written as two or three letters, followed by digits.

"PEnnsylvania 6-5000", the telephone number of a Manhattan hotel which appeared in a 1940 Glenn Miller tune, is the most famous example of Telephone Exchange Names.

555-style fake telephone numbers were usually written "KLondike 5" or "KLamath 5" in this era.