The reason behind why does ABC starts with the number 2 and not 1 goes back in the old days. In the old days the first two numbers of a phone number used to indicate the central office for example “Klondike-442”, where the real phone number would be 55442, with both the “K” and “L” filling in for a 5 each and officially the numbers 1 and 0 did not map to anything on the phone pad so they are reserved for area codes.
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The reason behind why does ABC starts with the number 2 and not 1 goes back in the old days. In the old days the first two numbers of a phone number used to indicate the central office for example “Klondike-442”, where the real phone number would be 55442, with both the “K” and “L” filling in for a 5 each and officially the numbers 1 and 0 did not map to anything on the phone pad so they are reserved for area codes.
This is because the numbers 1 and 0 did not map to anything on the phone pad so they are reserved for area codes.