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.
Area code 202. Area code 202 is the North American telephone area code for Washington, D.C. . The area code was one of the original area codes established in October 1947 by AT&T in the North American Numbering Plan (NANP).here is no provision for long-distance calls within the area code. From 1947 to 1990, area code 202 was an unpublished alternate area code for the nearby suburbs in Maryland and Virginia, which were officially in area codes 301 and 703, respectively.