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.
005691
008392
008702
009765
015759
016636
018005
018339
019521
021636
022631
022913
028907
029581
031234
040323
047013
049303
070174
076880
077498
077779
080323
080632
080648
080714
095816
096703
100039
108867
109031
115153
124015
127018
131270
142020
142203
142272
142822
152668
152702
191396
197020
198160
221361
232180
276273
301104
301652
312504
314726
315029
332083
334003
337394
340640
366005
370005
370007
372274
372884
373004
374006
374095
376122
379251
379505
381198
381251
381344
381408
381452
381529
381543
381619
381798
381898
386061
400063
436110
441190
441677
441787
441972
462469
481264
481298
481366
487115
551511
559030
601194
601351
601872
604333
672526
701951
730068
730725
730836
731432
752076
752838
789013
895479
900111
911225
915243
920111
921429
921613
921619
921730
921747
921790
921855
931262
933428
939512
940019
940082
940086
940208
940213
940321
940337
940357
940386
940480
940488
940490
940516
940529
940535
940607
940829
940987
941004
941101
941189
941222
941297
941355
941383
941432
941596
941721
941729
941850
941879
941923
941987
945548
949517
949545
949611
949614
950075
950089
950111
950148
950211
950305
950319
950512
950692
950757
950804
950816
950847
950853
950881
950934
950985
951064
951112
951274
951316
951337
951543
951546
951570
951623
951637
951784
951848
951875
951924
951938
951941
951947
951979
967069
967216
968633
976012
977051
980071
980232
980404
980418
980461
980501
980542
980664
980671
980683
980769
981762
981864
981921
981935
981984
982027
982075
982215
982386
982425
982427
982446
982480
982505
983045
983056
983115
988022
992082
992230
992377
992529
992553
— Product Information Requirements, Mail Entry and Payment Technology, 12-29-22