Delivery Sequence File 2nd Generation (DSF2TM)
Validate and correct your addresses to the USPS Delivery Point.
DSF2 processing is provided by a nonexclusive licensee of the United States Postal Service. Melissa Data is a nonexclusive Interface Distributor and NCOALink Full Service Provider, DPV and LACSLink Licensee of the United States Postal Service. The prices for NCOALink and DPV services are not established, controlled, or approved by the United States Postal Service.
DSF2 is the most advanced address hygiene service available in the US. It incorporates the use of the USPS's Delivery Point Validation (DPV) processes to identify known address information, right down to the physical delivery point.
The DSF2 service also provides mailers with important address attributes. It classifies an address as a CMRA (commercial mail receiving agency) or private mail box, business or residence, vacant or seasonal and identifies the mail delivery method as curbside delivery, door slot, NDCBU (neighborhood delivery and collection box unit) or central delivery.
DSF2 is the ultimate address cleansing and postage cost savings process.
DSF2 also provides walk sequence numbers and the documentation required by the USPS® to justify postage discounts for walk sequence mailings.
After running this service, you will receive a result file containing your original input file with the new, corrected data appended to it. Fields are added to your record to store updated addresses. A summary report provides you with statistical data describing your results and a record layout defines field positioning and content.
Benefits
- Save money by qualifying for USPS's accuracy-based postal discounts.
- Save money by quality for walk sequence discounts.
- Increase marketing campaign ROI by improving deliverability.
- Save costs associated with returned mail processing.
- Increased accuracy of data analysis and comparison processes.
- Improved record matching capability for duplicate elimination, merge/purge, NCOA, etc.
Match Rates
85 – 90% Range.
Match Rate Factors
- List quality
- List geography
Related Services
Improve overall address accuracy by also running the National Change of Address (NCOALinkTM).
Add and verify telephone numbers by running Telephone Number Verification & Append.
File Format Specification
Please see the File Format Specification for information on required input and standard result fields.
This service also appends the following fields:
| Field Name | Length | Description |
|---|---|---|
| DSF Delivery Point Business Indicator | 1 | Y = Business
N = Not a Business |
| DSF Delivery Point CMRA Indicator | 1 | Y = CMRA (Commercial Mail Receiving Agency)
N = Not a CMRA |
| DSF Locatable Address Conversion Indicator | 1 | Y = Yes
N = No |
| DSF Delivery Type Code | 1 | 1 = Curb
2 = NDCBU (Neighborhood Delivery and Collection Box Unit) 3 = Central 4 = Door Slot |
| DSF Delivery Point Drop Indicator | 1 | Y = Drop Point
N = Not a Drop Point |
| DSF Validation Flag | 1 | Y = DSF Validated
N = Not DSF Validated |
| DSF Record Type Code | 1 | S = Street
H = Highrise F = Firm P = PO Box R = Rural Route/Highway Contract G = General Delivery |
| DSF Delivery Point Residence Indicator | 1 | Y = Yes
N = No |
| DSF Sequence Control Number | 4 | This column contains the sequence control number from the DSF2 database. |
| DSF Address Vacant Indicator | 1 | Y = Vacant for 90 days or more
N = Not vacant |
