Locatable Address Conversion System (LACSLink™)

Convert outdated rural route addresses to newly assigned urban addresses.

The 911 Emergency Response System initiated the conversion of older rural addresses to modern, urban-styled addressing in the 1980's. The purpose was to generate a faster response by accurately associating a physical address with the telephone number making the emergency call to the authorities. The USPS recognized that mailers would improve their deliverability by obtaining this new address data and so created the Locatable Address Conversion System (LACS).

Rural, PO Box, Highway and other non-unique address types are compared to the USPS master conversion file. Addresses in your file that have undergone a permanent conversion are updated.

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

Full-Service
Self-Service
API
Enterprise
YesNoNoYes

Benefits

  1. Increase marketing campaign ROI by improving deliverability.
  2. Improve cash flow and reduce collection costs by maintaining accurate billing records.
  3. Reduce environmental and financial costs associated with undeliverable mail.
  4. Improve the accuracy of data analysis and comparison processes.

Match Rates

0.1-3% Range.

Match Rate Factors

  • List age
  • List geography

Related Services

Improve your LACSLink™ match results by also running Address Standardization & Correction and the National Change of Address (NCOALink™) service.

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.

Locatable Address Conversion System (LACSLink™) service also appends the following field:

Field Name
Length
Description
LACS New Address Type
1

R = RR (Rural Route)

X = RR W/BOX

H = HC (Highway Contract)

V = HC W/BOX

<blank> = STREET


LACS Conversion Effective Date
6

This column contains the date of the LACS conversion (YYYYMM).


LACS Flag
1

Y = LACS Updated

N = Not LACS Updated


LACS Record Type Code
1

2 = RR/HC with box number to street type address (individual match)

3 = Street to street type address, split * (individual match)

5 = RR/HC with box number to street type address (address match)

7 = Street to street type address, non-split (address match)

8 = RR/HC with no box number to street type (individual match)


View required input and standard result fields in our File Format Specifications.
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The following trademarks are owned by the United States Postal Service®: CASS, CASS Certified, DMM, DPV, DSF2, eLOT, First-Class Mail, LACSLink, NCOALink, 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.


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