Delivery Sequence File (DFS2™) by Cleanlist.com
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.
- 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 Rate Factors
- List quality
- List geography
Improve overall address accuracy by also running the .
File Format Specification
*Please note that following our file format specifications is required only for our Self-Service products.
Delivery Sequence File (DFS2™) service also appends the following fields:
DSF Delivery Point Business Indicator
Y = Business
N = Not a Business
DSF Delivery Point CMRA Indicator
Y = CMRA (Commercial Mail Receiving Agency)
N = Not a CMRA
DSF Locatable Address Conversion Indicator
DSF Delivery Type Code
1 = Curb
2 = NDCBU (Neighborhood Delivery and Collection Box Unit)
3 = Central
4 = Door Slot
DSF Delivery Point Drop Indicator
Y = Drop Point
N = Not a Drop Point
DSF Validation Flag
Y = DSF Validated
N = Not DSF Validated
DSF Record Type Code
S = Street
H = Highrise
F = Firm
P = PO Box
R = Rural Route/Highway Contract
G = General Delivery
DSF Delivery Point Residence Indicator
DSF Sequence Control Number
This column contains the sequence control number from the DSF2™ database.
DSF Address Vacant Indicator
Y = Vacant for 90 days or more
N = Not vacant
The following trademarks are owned by the United States Postal Service®: CASS, CASS Certified, DMM, DPV, DSF 2
, eLOT, First-Class Mail, LACS Link
, NCOA Link
, PAVE, Post Office, Postal Service, Standard Mail, U.S. Postal Service, United States Post Office, United States Postal Service, USPS, ZIP, ZIP Code, and ZIP + 4.
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.