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Subscriber trunk dialling / Lisburn telephone exchange code / Telephone numbering plan / Telephone exchange / Class 4 telephone switch / General Post Office / Technology / Communication / Telephone numbers / Telephony / Telephone numbers in the United Kingdom


STD Equivalent List The United Kingdom numbering plan has been evolving and changing over the last sixty years. This list is an attempt to summarise the first twenty-five years of Subscriber Trunk Dialling, STD. It was
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Document Date: 2013-09-19 05:56:02


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