Pitney Bowes MapMarker USA - Manual (Page 320)

Location Codes
MapMarker USA 25
320
User Guide
9 Location based upon a ZIP + 4 centroid. These are the
most accurate centroids and normally place the
location on the correct block face. For a small number
of records, the location may be the middle of the entire
street on which the ZIP + 4 falls. See the 4th character
for a precise indication of locational accuracy.
4th Character
A Address matched to a single segment. Location
assigned in the middle of the matched street segment,
offset to the proper side of the street.
a Address matched to a single segment, but the correct
side of the street is unknown. Location assigned in the
middle of the matched street segment, offset to the left
side of the street, as address ranges increase.
B Address matched to multiple segments, all segments
have the same Block Group. Location assigned to the
middle of the matched street segment with the most
house number ranges within this ZIP + 4. Location
offset to the proper side of the street.
b Same as methodology B except the correct side of the
street is unknown. Location assigned in the middle of
the matched street segment, offset to the left side of
the street, as address ranges increase.
C Address matched to multiple segments, with all
segments having the same Census Tract. Returns the
Block Group representing the most households in this
ZIP + 4. Location assigned to t he middle of the
matched street segment with the most house number
ranges within this ZIP + 4. Location offset to the proper
side of the street.
c Same as methodology C except the correct side of the
street is unknown. Location assigned in the middle of
the matched street segment, offset to the left side of
the street, as address ranges increase.
ZIP +4 Centroid Location Codes (Z Codes) (continued)
Character position Code Description