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DPV Codes


DPV Desc


Yes, the input record is a valid mailing address


No, the input record is not in the DPV database of valid mailing addresses


The apartment or rural route box number is not valid, although the house number or rural route is valid


The input record is a valid mailing address, but is missing the apartment or rural route box number

DPV Notes

*New notes may be added over time, and some descriptions may change, but the codes will never change



1Perfect address
3Unique ZIP code
4Street alias - flag can be double, (i.e. &&) if extended USPS alias rules were applied
11Default ZIP+4 record used to certify the address
13Firm location but was certified as street address or high-rise
21Address exists but is vacant
22Address exists but mail is being returned
25Military APO/FPO address
26The input address matched the ZIP+4 record
27The input address did not match the ZIP+4 record
28The input address matched the DPV record
32The input address is a building name, and the primary is missing
35Missing PO box, Rural Route, or Highway Contract box number
36PO box, Rural Route, or Highway Contract primary is invalid
37The input address specified a PMB and matched a CMRA
38Street address
39Highrise apartment/office building address
40General Delivery address
41Post Office Box address
42Rural Route or Highway Contract address
43Firm or Business address


*The corrections listed are preliminary corrections. More in depth and specific correction codes will be added in the future.


Corrections Desc

1Address1 corrected.
2City corrected
3State corrected
4Zip corrected.

Scoring and Behavior

Address Detective's primary goal is to increase your address hit rate. That is, if an address fails, we will use the additional clues you provided (like Name and Phone) to try and get an address back to you. When we have to use these clues, there is a risk that what we find isn't going to be the right address for your contact. Because of this, we return a confidence score (matchrate) from 1-100 (1 means the returned address is extremely unlikely to be valid, 100 means it's extremely likely to be valid).

Here is the breakdown for recommended actions based on the output score:

Score RangeRecommendationDescription
1 - 39RejectNot enough confidence in the quality of the data to determine if this is the address you want
40 - 75ReviewGo through an internal review of this contact (e.g. follow-up with the contact)
76 - 100AcceptInternal testing determined the resulting address has a high enough quality to accept the address

Here is a breakdown of the general process the service goes through to return an address and produce a score:

1) Is the input address valid?

    • Yes: 
      • We're done! The "Best Address" is set to the results of the validated address input. Score will always be 100.
    • No:
    • Collect all address results we can find from Name, Phone, and Address by leveraging other data sources and cleaning up the input address.
    • Determine the "best" address result from this set by looking for quality indicators. For example, if the same address appears multiple times, it's more likely to be a hit.
    • Run several tests against the best address, the other addresses, and the user's raw inputs. Each internal test raises or lowers the score based on results.

2) Return the Best Address, along with any Household member information, a score, and additional notes describing what we found to give a sense for why an address may have gotten a good or bad score.


**New and improved Notes will soon be added to DOTS Address Detective Service**

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