Dialling Code Booklets, your memories?
There didn't seem to be too much logic to how often Dialling Code Booklets were reissued. When I lived in Leeds they were generally reissued about every 18 months. I lived in London later, and there was a period between 1977 and 1982 when new Dialling Code Booklets for 01 numbers weren't reissued at all.
In 1982 British Telecom did at last issue a new Dialling Code Booklet for 01 numbers - which must have been a massive printing and distributing task! - but they had changed the format of the International Dialling section to only show the country code and no longer showed the area or city codes, which caused some customer complaints!
After about 1983 dialling codes were listed in phone books instead. Dialling Code Booklets until 1983 had weird colours, they could be green white or orange etc, and in some areas they had "issue numbers", I remember seeing an issue 12 for Manchester area!
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