Need to take my area code list, and make a state list.

Hey, I'm new here, so pardon me if I posted in the wrong place.

Basically I have a giant list (50,000+) of area codes (like 312, 216, 517, etc...) and I would like to make a new column right next to that, which takes those area codes and transcribes them into states so it would be (IL, OH, MI, etc...)

I have a table on the 2nd page of my excel workbook which has every single area code listed in column A, and in column B it has all the state symbols. I got it from here: http://www.lincmad.com/locator.html

How would I go about making this new column on page 1 of my workbook which takes all the area codes I have and makes a brand new list of the states by looking up the area code/state table I have on page 2 of the workbook?

Thanks so much! I've been stumped for a while now