Code – District

11 – Boston

12 – Buffalo

13 – New York

14 – Pittsburg

15 – Newark

21 – Atlanta

22 – Charlotte

23 – Philadelphia

24 – Jacksonville

25 – Richmond

26 – Washington

31 – Cincinnati

32 – Cleveland

33 – Detroit

34 – Indianapolis

Code – District

35 – Lansing

36 – Louisville

41 – Chicago

42 – Fargo

43 – Rockford

44 – Twin Cities

45 – Davenport

51 – Denver

53 – Des Moines

53 – Kansas City

54 – Omaha

55 – St. Louis

61 – Dallas

62 – Houston

63 – Memephis