DSF^2®- The most accurate address verification service available

Verify your addresses are correct and complete using the most accurate, up-to-date address data available – DSF². With over 165 million records, the DSF² database contains every deliverable address in the U.S. DSF² processing also distinguishes between residential and business addresses, information you can use to obtain the best parcel shipping rates.

The DSF² Product identifies whether a ZIP + 4^® coded address is currently represented in the USPS^® delivery file as a known address record. The DSF² Product contains vacant, residential, business or seasonal address information. It also identifies if an address is delivered to a curb-side mailbox or by a door-slot. This information will allow for more targeted mailings.

In addition, DSF² 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. Walk sequence codes allow ordering of mail pieces in the exact order the mail carrier travels. These codes can be used to qualify for the U.S. Postal Service's Enhanced Carrier Route (ECR) Basic, High Density, or Saturation postal discounts.

Use DSF² to identify:
   • Deliverable and undeliverable postal addresses
   • Business versus residential addresses
   • Commercial mail receiving agencies (CMRA)
   • Seasonal addresses
   • Addresses vacant for over 90 days
   • Address delivery types such as curb, door slot, box, etc.

DSF² includes:
   • Delivery Point Validation (DPV)
   • Postal coding and delivery/walk sequence numbers
   • CASS certification
   • Address standardization
   • Mailability scores to help you filter your list

Pricing
Records	Price per 1000
Up to 100,000	$1.95
100,000 – 500,000	$1.50
500,000 – 1 Million	$0.95
Over 1 Million	Call 1-800-826-1450
The minimum order per file is $175.00. Pricing reflects files of 20 fields or less. Please call for pricing on files larger than 20 fields.