Provide this listing to Contract Postal Units and acceptance clerks in non-POS locations without intranet access to validate a USPS Corporate Account (USPSCA) number online. For all other locations, online USPSCA validation is preferred. This list supersedes all previous notices, which you must recycle.
Acceptance clerks must not accept Priority Mail Express® shipments bearing an invalid USPSCA number in the “Payment by Account” or “Agreement Number” section of the label or form.
Note: The first 6 digits of a 9-digit Custom Designed Service and Next Day Pickup Agreement make up the Corporate Account Number.
008176
008282
010806
011415
021177
021774
025102
027188
028020
033002
064041
070421
077311
100237
105324
107997
117097
121251
124187
125228
125351
159025
185066
191468
223027
232350
270038
301912
326184
331771
423067
441823
454436
473150
489497
495078
515020
553006
554787
600895
608032
708474
731030
752118
752931
754027
757072
763115
811045
853411
875121
904532
907870
921198
931775
933181
941516
959064
967283
995022
995356
— Product Information Requirements, Mail Entry and Payment Technology, 4-6-23
