All-figure dialling was a telephone numbering plan introduced in the United Kingdom starting in 1966 that replaced the traditional system of using initial...

the dialling codes used for telephone services on the remote South Atlantic island of Tristan da Cunha. Before the introduction of national dialling codes...

need to automate telephone dialling resulted in every exchange being allocated either a unique Subscriber Trunk Dialling (STD) code or unique range of...

corresponded to 0742 on a rotary dial), later changing to the corresponding numbers upon the introduction of All-Figure Dialling in the area. Instead of the...

in cases where known. Dialling codes do not correspond to specific political boundaries: for example, the Coventry dialling code covers a large area...

direct-distance dialing, all-number calling became necessary. Similar developments followed around the world, such as the British all-figure dialling. In the...

Dialling, the number of possible exchange name permutations were running out in London and the potential expansion of international direct dialling (where...

ascribed to the 9 (due to the code being introduced years after All Figure Dialling, which saw existing letter mnemonics being converted to their corresponding...

"area code" is often referred to as a "subscriber trunk dialling code" (STD code) or a "dialling code". STD codes are two, three, four or, exceptionally...

inner city "Motorway Box". 1966–January 1970: The introduction of all-figure dialling within the London Director telephone system ends the use of alphabetic...