Skip to main content

CASS Results Codes

The CASS coding system returns 4-character codes that indicate status and errors detected by the CASS process. Returned results might contain multiple codes: AC03, AC11, AS01, AS15. Instead of looking at multiple fields to determine the status or error of a record, you can simply look at the output of the CASS Results field.

A CASS Result Code of AS01 or AS02 the record is accurate enough to be used for standardization, matching, and geocoding. AS01 coded records are addresses that are fully valid and deliverable for the purpose of mailing, but each address must have AS01 or AS02 to be considered a valid record.

When AS01 is accompanied by other codes, the address is still considered valid and deliverable as long as none of the accompanying codes include...

  • AS02, AS09, and AS18

  • AE** Codes

  • AC** Codes

AS Status Result Codes

Code

US Only

Meaning

Details

AS01

Address matched to postal database.

Street Address is valid and deliverable. Check AE08 and AE09 for full deliverability.

AS02

Street address match.

Address street matched to USPS database but a suite was missing or invalid.

AS03

Non-USPS address.

The input represents a real physical address but is not in the USPS database. It might be deliverable by other carriers (UPS, FedEx, etc.).

AS09

Foreign postal code detected.

Postal Code from a non-supported foreign country detected. A US ZIP Code or Canadian Postal Code can also return this error if the US or Canadian data files are not initialized.

AS10

Y

Address matched to CMRA.

Address belongs to a Commercial Mail Receiving Agency (CMRA) like The UPS Store®.

AS13

Y

Address has been updated by LACSLink.

Address has been converted by LACSLink® from a rural-style address to a city-style address.

AS14

Y

Suite appended by SuiteLink.

A suite was appended by Suite ™ using the address and company name.

AS15

Y

Suite appended by AddressPlus.

A suite was appended by AddressPlus using the address and last name.

AS16

Address is vacant.

Address has been unoccupied for 90 days or more.

AS17

Alternate delivery.

Address does not receive mail.

AS18

Y

DPV error.

Reach out to Support for assistance.

AS20

Y

This address is deliverable by USPS only.

Alternate carriers such as UPS and Fed Ex do not deliver to this address.

AS22

Y

No suggestions.

No suggested alternatives were found.

AS23

Extraneous information found.

Information found in input street address that was not used for verification.

AS24

Y

USPS door not accessible.

Address identified by the USPS where carriers cannot physically access a building or door for mail delivery.

AE Error Result Codes

AE** result codes indicate there is something wrong with the address that cannot be corrected automatically.

Code

US Only

Meaning

Details

AE01

Zip code error.

The 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 directional or the suffix field did not match the post office database, or 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.

Address matched to multiple records. 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.

AE06

Y

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

Y

PO, HC, or RR box number invalid error.

The input address PO, RR, or HC number was invalid.

AE13

Y

PO, HC, or RR box number missing error.

The input address is missing a PO, RR, or HC Box number.

AE14

Y

CMRA secondary missing error.

Address Matched to a CMRA Address but the secondary (Private mailbox number) is missing.

AE15

Demo mode.

Demo mode only validates Nevada addresses.

AE16

Expired database.

The database has expired. Please update with a fresh database.

AE17

Suite range extraneous error.

A suite number was entered but no suite information found for primary address.

AE19

Y

Find suggestion time-out.

Time allotted to the Find Suggestion function was exceeded.

AE20

Y

Suggestions disabled.

The SetCASSEnable function must be set to false and the DPV data path must be set to use FindSuggestion.

AC Change Result Codes

AC** result codes, known as change codes, indicate there is a component wrong, but the CASS tool can standardize it.

Code

US Only

Meaning

Details

AC01

ZIP code change.

The five-digit ZIP Code™ was added or corrected based on the city and state names.

AC02

State change.

The state name was corrected based on the combination of city name and ZIP Code.

AC03

City change.

The city name was added or corrected based on the ZIP Code.

AC04

Base/alternate change.

Some addresses have alternate names, often chosen by the owner or resident for clarity or prestige. This change code indicates that the address from the official, or “base,” record has been substituted for the alternate.

AC05

Alias change.

An alias is a common abbreviation for a long street name, such as “MLK Blvd” for “Martin Luther King Blvd.” This change code indicates that the full street name has been substituted for the alias.

AC06

Address1/Address2 swap.

The value passed to SetAddress could not be verified, but SetAddress2 was used for verification. The value passed to the SetAddress function will be returned by the GetAddress2 function.

AC07

Address1/Company swap.

A company name was detected in address line 1 and moved to the GetCompany function.

AC08

Plus4 change.

A non-empty Plus4 was changed.

AC09

Urbanization change.

The Urbanization was changed.

AC10

Street name change.

The street name was changed due to a spelling correction.

AC11

Suffix change.

The street name suffix was corrected, such as from “St” to “Rd.”

AC12

Street directional change.

The street pre-directional or post-directional was corrected, such as from “N” to “NW.”

AC13

Suite name change.

The unit type designator for the secondary address, such as from “STE” to “APT,” was changed or appended.

AC14

Suite range change.

The secondary unit number was changed or appended.