NCOALink™ TotalSource Enhancement is the most comprehensive mover update solution available. It includes both the National Change of Address (NCOALink™) service and non-reported moves collected directly by Equifax.
Because over 20% of movers do not register their change of address with USPS, Equifax has developed a complimentary list of movers from other sources including magazine publishers, catalog houses, insurance firms, and credit companies, improving your overall match rate for movers in your file.
After processing your file against the USPS National Change of Address (NCOA) mover database, your file is then run against the Equifax TotalSource mover file. Your result file will contain your original input file with the new, corrected data appended to it. Fields indicating the move type and the move date are also included. A summary report provides you with statistical data describing your results and a record layout defines field positioning and content.




3 - 10% Range.
The Address Standardization & Correction service is included with NCOALink™ TotalSource Enhancement.
For enhanced address accuracy it is advisable to also run the Locatable Address Conversion System (LACSLink™) and Delivery Sequence File (DSF2™) services.
*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.
NCOALink™ TotalSource Enhancement service also appends the following field:
A = NCOALink™ Hit, Address Updated
B = NCOALink™ Hit, Address Not Updated : Match Failed or Non-Deliverable Forwarding Address
C = NCOALink™ Hit, Address Not Updated : Foreign Move
E = No NCOALink™ Hit
F = TCOA Hit
G = TCOA Nixie, Address Not Updated
A = COA Match - The input record matched to a business, individual or family type master file record. A new address could be furnished.
00 = No Match - The input record COULD NOT BE matched to a master file record. A new address could not be furnished.
01 = Found COA: Foreign Move
02 = Found COA: Moved Left No Address (MLNA)
03 = Found COA: Box Closed No Order (BCNO)
04 = Cannot match COA: Street Address with Secondary
05 = Found COA: New 11 digit DPBC is Ambiguous
06 = Cannot match COA: Conflicting Directions - Middle Name Related
07 = Cannot Match COA: Conflicting Directions - Gender Related
08 = Cannot Match COA: Other Conflicting Instructions
09 = Cannot Match COA: High-rise Default
10 = Cannot Match COA: Rural Default
11 = Cannot Match COA: Individual Match
12 = Cannot Match COA: Middle Name Test Failed
13 = Cannot Match COA: Gender Test Failed
14 = Found COA: New Address Would Not Convert at Run Time
15 = Cannot Match COA: Individual Name Insufficient
16 = Cannot Match COA: Secondary Number Discrepancy
17 = Cannot Match COA: Other Insufficient Name
18 = Cannot Match COA: General Delivery
19 = Found COA: New Address not ZIP+4 Coded
20 = Cannot Match COA: Conflicting Directions after re-chaining
66 = Daily Delete
91 = COA Match: Secondary Number dropped from COA
92 = COA Match: Secondary Number dropped from input address
A = Secondary alphanumeric match failed
B = PO Box record
C = Highway contract with Box number record
D = Rural Route default record
E = Alphanumeric match in numeric range, primary number
F = Firm record
G = General delivery record
H = Highrise or building record
I = Alphanumeric match in numeric range, building/highrise secondary number
J = Alphanumeric match in numeric range, HC Box number
K = Highway Contract default record
L = Building default record
M = Military ZIP default record
N = Non-deliverable record
O = Alphanumeric match in numeric range, PO Box number
P = Postmaster record
Q = Alphanumeric match in numeric range, RR Box number
R = Rural Route with Box number record
S = Street record
T = Small town default
U = Unique zip code default
V = Alphanumeric match in numeric range, firm record secondary number
W = Not used
X = No match to ZIP+4 by USPS contractor
Y = Ambiguous dual, no match
I = Individual
F = Family
B = Firm (company)
his field indicates the move effective date. (e.g. 200902)
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.