| Result Codes | 
Description | 
| Blank or 0 | 
The address has been successfully coded. | 
| 1 | 
The address is coded but undeliverable (i.e. on side of street known to contain no houses). | 
| 2 | 
The ZIP code was not found and the city and state cannot be used to determine a geographical area to search. | 
| 3 | 
Coding would result in changing both ZIP and city.  This is illegal for PO BOX and route type addresses. | 
| 4 | 
The best match would result in too many suspicious changes. | 
| 5 | 
The street was identified as an alias but was out of the range restricted for that alias. | 
| 6 | 
No street address was given. | 
| 7 | 
There are no street name matches in the given ZIP code or in any geographically-related ZIP code. | 
| 8 | 
The street may contain superfluous components which cannot be discarded with confidence. | 
| 9 | 
The house number could not be matched. | 
| 10 | 
The best match was made to a ZIPMOVE record but was not an exact match. | 
| 11 | 
A ZIPMOVE match was made but no exact match could be found in the new ZIP. | 
| 12 | 
The Early Warning System indicates that an exact match will become available in the next database update. | 
| 13 | 
There are multiple matches with the same degree of confidence.  This may indicate an inconsistency in the USPS data. | 
| 14 | 
Incorrect suffix, directional, street name, or unit resulted in multiple matches with the same degree of confidence. | 
| 15 | 
Incorrect ZIP, city, or urbanization resulted in multiple matches with the same degree of confidence. | 
| 16 | 
A corrected field was too long to fit into the supplied field. | 
| 17 | 
Media Error.  The database could not be read because of a hardware or system problem. | 
| 18 | 
Process Fault. Processing was interrupted due to serious program error.  Please contact technical support. | 
| 19 | 
DPV No Match.  The address was found in the Zip+4 data, but not matched in the DPV reference. | 
| 20 | 
False Positive detected. |