| Codes | Status/Error | Description |
| AS01 | Full Address Match | Full address matched to USPS database. |
| AS02 | Street Address Match | Address street matched to USPS database but a suite was missing or invalid. |
| AS09 | Foreign Postal Code Detected | Postal code from a non-supported foreign country detected. A US or Canadian postal code can also return this error if US or Canada is not initialized. |
| AS10 | Address Matched to CMRA | Address belongs to a Commercial Mail Receiving Agency (CMRA) like a Mail Boxes, Etc. |
| AS13 | Address has been Updated by LACSLink. | Address has been coverted by LACSLink from a rural-style address to a city-style address. |
| AS14 | Suite Appended by SuiteLink | A suite was appended by SuiteLink using the address and company name |
| AS15 | Suite Appended by SuiteFinder | A suite was appended by SuiteFinder using the address and last name |
| AS16 | Address is vacant | Address has been unoccupied for 90 days or more |
| AS17 | Alternate delivery | This physical address does not receive mail because delivery has not been established (being built) or customer receives mail as part of a drop. |
| AS18 | DPV Locked Out | DPV processing was terminated due to the detection of what is determined to be an artificially created adress. No address beyond this point has been DPV validated. |
| AS20 | Deliverable only by USPS | This address is can only receive mail delivered through USPS. This means that this address is a PO Box or a military address. |
| AE01 | Zip Code Error | The ZIP/Postal Code does not exist and could not be determined by the city/municipality and state/province |
| AE02 | Unknown Street Error | An exact street name match could not be found and phonetically matching the street name resulted in either no matches or matches to more than one street name |
| AE03 | Component Mismatch Error | Either the directionals or the suffix field did not match the post office database, and there was more than one choice for correcting the address |
| AE04 | Non-Deliverable Address Error | The physical location exists but there are no homes on this street. One reason might be railroad tracks or rivers running alongside this street, as they would prevent construction of homes in this location |
| AE05 | Multiple Match Error | More than one record matches the address and there is not enough information available in the input address to break the tie between multiple records. Passing information, such as city/municipality names or urbanization names, can help reduce the number of multiple match errors |
| AE06 | Early Warning System Error | This address has been identified in the Early Warning System (EWS) data file, and should be included in the next postal database update. |
| AE07 | Missing Minimum Address Input Error | Minimum required input of address/city/state or address/zip not found. |
| AE08 | Suite Range Invalid Error | The input street address was found but the input suite number was not valid. |
| AE09 | Suite Range Missing Error | The input street address was found but a required suite number is missing. |
| AE10 | Primary Range Invalid Error | The street number in the input address was not valid |
| AE11 | Primary Range Missing Error | The street number in the input address was missing. |
| AE12 | PO, HC, or RR Box Number Invalid Error | The input address PO, RR or HC number was invalid. |
| AE13 | PO, HC, or RR Box Number Missing Error | The input address is missing a PO, RR, or HC Box number. |
| AE14 | CMRA Secondary Missing Error | Address Matched to a CMRA Address but the secondary (Private mailbox number) is missing. |
| AE15 | Demo Mode | Address Object is in demo mode and the input address is not supported in this mode. Demo mode only validates nevada address. |
| AE16 | Expired Database | The database has expired. Please update with a fresh database. |