Pitney Bowes MapMarker USA - Manual (Page 132)

Postal Centroid Matches (Z category)
MapMarker USA 25
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User Guide
• M0 – multiple matches, no coordinates available
See A Closer Look at Multiple Matches on page 124 .
Postal Centroid Matches (Z category)
Matches in the Z category indicate that no street match was made, either: 1) because there is no
close match and you allowed MapMarker to fall back to ZIP
® Centroid; 2) the address is a P.O. Box
or rural address; or 3) you set MapMarker to match to ZIP Centroids. The resulting point is located at
the ZIP Code™ centroid with five possible accuracy levels.
• Z1 – ZIP Code (5-digit) centroid match
• Z2 – ZIP + 2 centroid match
• Z3 – ZIP + 4 centroid match (highest accuracy available for Z matches)
• Z0 – ZIP Code match, no coordinates available (very rare)
• Z6 – ZIP Code centroid match for point ZIP
A Z6 code is returned when the candidate is matched to a point ZIP centroid. Point ZIPs are 5-digit
ZIP Codes that are points on a map rather than a polygon. Point ZIPs include unique ZIPs (single
site, building, or organization). Instead of returning a Z1 result code, the Z6 code indicates that these
special ZIPs are actual point locations, not an area.
Geographic Matches (G category)
Matches in the G category indicate that a match was made at the state, county, or city level.
• G1 – State match, point located at the state centroid.
• G2 – County match, point located at the county centroid.
• G3 – City match, point located at the city centroid. A number of prominent U.S cities can be
matched even if no other information is provided. For example, if you provide Chicago (city) but
no state, the record is matched to Chicago, IL.
Reverse Geocoded Matches (R category)
Candidates return a R result codes, indicating that records was matched by reverse geocoding. The
first three characters of the R result code indicate the type of match found. R geocode results
include an additional letter to indicate the dictionary from which the match was made. This is always
an A, indicating address dictionary; reverse geocoding is supported by the address dictionary only
(not user dictionaries).
L
Reverse geocoding is not supported in the Desktop application. Therefore, geocoded
candidates in the Desktop application will not return R result codes. Reverse geocoding is
supported in the Developer (Server) edition and at the engine level. See the Developer
Guide for more information on reverse geocoding.