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The QR code system was invented in 1994, at the Denso Wave automotive products company, in Japan. [6] [7] [8] The initial alternating-square design presented by the team of researchers, headed by Masahiro Hara, was influenced by the black counters and the white counters played on a Go board; [9] the pattern of the position detection markers was determined by finding the least-used sequence of ...
Download QR code; Print/export Download as PDF; ... with 6-digit telephone numbers until 30 June 2003 when the range was retired and the 60 prefix was replaced ...
To make a call to cell phone, dial "0" + the number of cell phone. To make inter-provincial calls, it is required to dial prefix "0" followed by (P)QR code + the 9-digit phone number. (P)QR is the code for long-distance basic service providers which have the following format: (P)[2-7][1-8].
Download QR code; Print/export ... Short codes, or short numbers, ... support information — consisting of either a toll-free phone number or email address at a ...
A telephone number serves as an address for switching telephone calls using a system of destination code routing. [1] Telephone numbers are entered or dialed by a calling party on the originating telephone set, which transmits the sequence of digits in the process of signaling to a telephone exchange.
Worldwide distribution of country calling codes. Regions are coloured by first digit. Country calling codes, country dial-in codes, international subscriber dialing (ISD) codes, or most commonly, telephone country codes are telephone number prefixes for reaching telephone subscribers in foreign countries or areas via international telecommunication networks.
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