Area codes began throughout Canada and the "Lower 48" United States in 1947. In the early days, you rang a special long-distance operator and told her "area code 312, KLondike 5-0123," and you could just as well say "Chicago" as "a/c 312." By the mid-1970's, all but a few remote places gained the ability to dial directly without an operator.
There are a few different area codes for Chicago. They are 630,312,847,815 and a few others.
The US and Canada began using area codes in 1947.
Area codes in Mexico do not begin with zero.
No such area code in the U.S. U.S. area codes never begin with 0.
Area code 856 is in southern New Jersey, including Camden and Vineland. ZIP Codes in that area generally begin with 08, but there is no easy correlation of ZIP Codes to area codes.
PIN Codes never begin with zero.
Latvia does not have area codes, and no numbers in Latvia begin with 0, except for special codes like 01 for the fire department.
The US and Canada began using area codes in 1947.
No such area code - North American area codes never begin with 0 or 1.
PIN Codes never begin with zero.
All UK area codes begin with a 0. There is no area code 6010 in the UK, and there is no 06010 code either.
There is no area code 071 in North America. North American area codes never begin with zero.