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Table of Contents

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  1. Preface
  2. Introduction
  3. Address Validation Status Ports
  4. Building and Residence Data Ports
  5. Business and Organization Data Ports
  6. City and Locality Data Ports
  7. Country Data Ports
  8. Customer Segmentation Data Ports
  9. Enrichment Data Ports
  10. Formatted Data Ports
  11. Postal Carrier Certification Data Ports
  12. Postcode Data Ports
  13. Province and State Data Ports
  14. Residual Data Ports
  15. Street Data Ports
  16. Supplementary Data Ports
  17. XML Ports

Address Validator Port Reference

Address Validator Port Reference

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Delivery Sequence File Second Generation Vacant Indicator

Delivery Sequence File Second Generation Vacant Indicator

Output port that indicates whether an address is inactive. The USPS may consider an address inactive if it is unoccupied for 90 days.
The USPS maintains a Delivery Sequence File that lists all United States addresses with a valid delivery point code. Address validation validates an address against the Delivery Sequence File if the address contains a valid Delivery Point Code.
The USPS also maintains a table of addresses that are formally correct but that do not qualify for inclusion in the Delivery Sequence File. The table is called the No-Statistics table. The USPS does not deliver mail to any address on the table. Because the address does not qualify for a carrier route, the USPS does not collect statistics about the address. The Delivery Sequence File Second Generation No Statistics Indicator port returns a status value that indicates whether an address is present on the table.
The USPS might add an address to the No-Statistics table for one of the following reasons:
  • The USPS has not yet established delivery to the address.
  • The customer receives mail as a part of mail forwarding service.
  • The postal carrier returns the mail undelivered.
The Delivery Sequence File also omits general delivery addresses. An address is considered "general delivery" if the addressee cannot receive mail at a physical mailbox. General delivery addressees can collect mail at a USPS post office.

Delivery Sequence File Second Generation Vacant Indicator Usage

Select Delivery Sequence File Second Generation Vacant Indicator to identify addresses that the USPS considers undeliverable because the DSF2 file indicates that the address is unoccupied.

Port Location

The following table provides the location and default precision of the Delivery Sequence File Second Generation Vacant Indicator port:
Port Type
Port Group
Template Model
Precision
Output
US Specific
Basic
1

Delivery Sequence File Second Generation Vacant Indicator Output Codes

The following table describes the Delivery Sequence File Second Generation Vacant Indicator output codes:
Code
Description
Y
The USPS considers this address vacant.
N
The USPS does not consider this address vacant.
[Blank]
The address was not passed to the DSF reference data file.
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