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.
005291
006326
006858
006862
006869
006873
006884
006896
006900
006998
007019
007021
007022
007055
007057
007075
007113
007126
007129
007141
007149
007159
007164
007168
007169
007171
007172
007190
007210
007218
007252
007260
007292
007363
007380
007385
008008
008017
008025
008031
008067
008082
008091
008100
008110
008119
008308
008602
008731
008747
008763
008785
008801
008912
008924
008943
009015
009259
009305
009474
009517
009563
009597
009606
009632
009851
009891
009900
009904
011221
012380
019615
022092
022125
027576
028111
028828
030004
038655
043307
046201
047100
049317
050095
057019
058029
060205
064202
065264
069217
071118
071205
075329
075441
075447
076253
076562
077267
080223
082421
088769
089737
089979
092607
098206
098467
100720
101497
105804
108110
112069
113731
115279
115371
117176
117192
117493
117968
119073
125190
135193
139022
142365
142516
146027
146047
146351
146538
146641
152797
171010
187040
187080
192598
197203
198194
200418
220105
221325
235249
253400
282770
282896
292754
300215
300511
300635
301424
301425
330242
331109
331312
332513
333209
333328
334133
335194
352784
366001
410016
410094
421029
432006
436170
448702
450218
452008
453009
476011
479601
480017
481206
481971
482990
483488
487281
488279
488726
494259
503033
522018
541270
551091
551813
553053
554228
596444
600858
601096
601138
601239
601695
601935
605133
605145
605825
608503
619006
633030
723053
727082
731052
731433
735087
740966
741966
752197
752848
752936
760507
775356
778065
782068
785337
787039
787734
841206
841288
841317
841996
852226
856495
891804
898063
900005
902899
910010
910386
912417
913050
913078
914096
914102
914224
921071
926238
926451
926974
927555
927793
928590
930405
932007
932692
934289
941069
941642
951389
951748
959102
967035
967100
967123
967196
967442
968201
968237
968433
968820
968844
968872
969206
972787
974003
980055
980115
980616
982049
982434
982462
982614
995004
995332
995358
995455
995688
995767
999001
— Product Information Requirements, Mail Entry and Payment Technology, 11-8-18