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Delivery Sequence File (DFS2™)
Validate and correct your addresses to the USPS Delivery Point.
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.
Delivery Options
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 (NCOALink™).
Add and verify telephone numbers by running Phone Number Append.
File Format Specification
*Please note that following our file format specifications is required only for our Self-Service products.
Please see our File Format Specification page for more information on required input and standard result fields.
Delivery Sequence File (DFS2™) service also appends the following fields:
Y = Business
N = Not a Business
Y = CMRA (Commercial Mail Receiving Agency)
N = Not a CMRA
Y = Yes
N = No
1 = Curb
2 = NDCBU (Neighborhood Delivery and Collection Box Unit)
3 = Central
4 = Door Slot
Y = Drop Point
N = Not a Drop Point
Y = DSF Validated
N = Not DSF Validated
S = Street
H = Highrise
F = Firm
P = PO Box
R = Rural Route/Highway Contract
G = General Delivery
Y = Yes
N = No
This column contains the sequence control number from the DSF2™ database.
Y = Vacant for 90 days or more
N = Not vacant
DSF2 processing is provided by a nonexclusive 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.
I especially appreciate when you are able to accommodate our last minute requests as I know you will always come through for us.
University of Toronto
Time and again, your team demonstrated great flexibility under rigid turnaround schedules without compromising the integrity of the data.Experian Information Solutions
I have complete confidence in knowing that you will go the extra mile to solve the many technological problems that we stumble across during a project.TD Bank Financial Group
