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.
006810
006994
007353
008107
008195
008257
008392
008415
008582
008702
009765
010112
015759
018339
019521
021048
021647
022028
022913
022935
030233
031234
040323
047013
075004
076880
077498
077779
080323
080632
080648
080714
095816
096703
100993
104644
105033
105341
105453
105631
106001
107324
108020
108867
108951
109148
109149
109871
120281
124015
125068
125338
126052
127018
127053
142020
142203
142272
142822
152702
191396
197020
198160
232180
276273
301104
301652
312504
314726
315029
331238
332083
332691
333585
334003
334195
337394
340640
349198
370005
370007
372274
372884
373004
374006
376122
379251
379505
381198
381408
381798
386061
400063
441787
441972
487115
551511
551991
559030
601194
601351
601872
672526
701951
752838
895479
900111
911225
915243
920111
921429
921613
921619
921730
921747
921790
921855
933154
933428
939512
940019
940082
940086
940208
940213
940321
940337
940357
940386
940480
940488
940490
940516
940529
940535
940601
940607
940829
940987
941101
941189
941222
941297
941355
941383
941432
941596
941721
941729
941850
941879
941923
941987
945548
948507
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
968633
976012
977051
980071
980232
980404
980418
980461
980501
980542
980664
980671
980683
980769
980824
981762
981831
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, 12-15-22
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