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The Most Accurate Address Verification Service Available

Verify your addresses are correct and complete using the most accurate, up-to-date address data available with our DSF2 processing service. With over 165 million records, the DSF2 database contains every USPS® deliverable address in the U.S. The database (which we use as a reference for processing) also contains vacant, residential, business or seasonal address information.

A significant feature of DSF2 – walk sequence codes, which allow you to deliver mail pieces in the exact order the mail carrier travels – qualifying you for USPS Enhanced Carrier Route (ECR), Basic, High Density, or Saturation postal discounts.

Our DSF2 processing service also distinguishes between residential and business addresses, and identifies if mail delivered to an address will go to a curb-side mailbox or door slot – critical information you can use to obtain the best parcel shipping rates.

DSF2 identifies whether a ZIP + 4® coded address is currently represented in the USPS delivery file as a known address record. DSF2 processing is one of the approved methods outlined in the Domestic Mail Manual (DMM®) for sequencing mail pieces in walk-sequence when not using a simplified address.

Use DSF2 to identify:

DSF2 processing includes:

Consumer Enhancement Price Chart Per Million

Required Fields:
Address, City, State, 5-digit ZIP Code

Returned Fields:
Click here to view the returned fields

DSF2, The Most Accurate Address Verification Service Available

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Melissa Data
The leading international provider of data quality and address verification software. Melissa Data's affordable, easy-to-use solutions for data cleaning and deduplication can be used separately or together to provide full global data quality. Melissa Data specializes in Microsoft .NET and SQL Server Integration Services, IBM, Java and Oracle environments with APIs, Web services and enterprise plugins that empower batch and real-time applications. Melissa Data's flagship Contact Zone enables data stewards to quickly create complex data quality and data integration routines with visual programming. Melissa Data also provides a full line of direct marketing solutions including mailing software, list hygiene and data append services, and a comprehensive line of mailing lists and sales leads.