Quote:
Originally Posted by jackojack
If I want to call a number in the US from Canada, I don't need the 001, just 1
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Canada is the exception since it shares the same country code of 1 as you mentioned above.
I may have mis-understood a part of your post since you did not specify you are in Canada, but now that I see that, it makes more sense.
The post I quoted just said that you only had to dial 1 to call the US when you call because it is the country code for both the US and Canada (North America), but you didn't mention you were in Canada and I failed to see your carrier to identify your location.
I looked up Mexico and their country code seems to be 0052 (or +52) so they most likely have to dial 001 to call the US, however, you are correct... both Canada and the US share the 1 country code and do not need the 00 prefix when called from one to another. Calls from other countries will most likely need it.