Social Sciences, asked by Anonymous, 9 months ago

when does firstly STD call ???​

Answers

Answered by QTPIEE
2

5th December 1958

The first STD call was made by Her Majesty the Queen on 5th December 1958 to 031 CAL 3636, the Lord Provost of Edinburgh. The meter pulses were calculated from the code digits used to route the call.

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