There are two parts to a blood type. One is the letter, A,B,AB, or O. This is the major part of the blood type. The other or minor part is the Rh type, which the A,B,AB, or O part is either positive or negative. Let me explain.
This guide shows the zip codes for each neighborhood in Washington DC arranged in alphabetical order. Get to Know the Neighborhoods of the DC Capital Region. Adams Morgan â zip code 20009. American University Park â zip code 20016.
Online. Visit the USPS website and click on the link titled Look Up a ZIP Code.. Enter the mailing address in the appropriate boxes and click Find.. For example, enter 1600 Pennsylvania Ave NW, Washington, DC if you are looking up the ZIP Code+4 Extension for the White House. In the search results, you will see the complete nine-digit extension is 20500-0003.