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.
005534
005699
008121
008164
008341
008364
008450
008544
008554
008790
008805
008811
009269
009297
009377
009551
009839
009973
010148
012393
012426
013251
015005
021046
022585
025084
026326
026577
026637
027011
027023
027113
027177
027179
027180
027181
027258
027429
027538
027646
027690
027739
027743
027825
027913
027981
028061
028210
028236
028305
028355
028550
028605
028776
028842
028844
028853
029046
029105
029150
029292
029336
029394
029506
029729
029914
046017
047151
060525
061251
062007
063168
063203
064278
064825
064844
065204
065405
065881
066144
068062
068071
068921
069242
069311
070943
070976
071512
071675
071784
075323
076077
076776
076867
077421
077700
077820
078046
078096
080068
080379
080402
089205
091227
091602
091630
091703
091737
091748
091978
092006
092400
093246
093419
094183
095527
095782
096032
096728
096803
097101
098064
098108
098312
098633
098810
100084
100130
100242
100579
100592
100791
100831
100891
100918
100968
100970
100976
101441
102438
102508
104392
107013
107028
108837
109187
109382
109685
109934
110899
117677
119026
119086
119443
123087
124182
127104
138017
159040
181004
197015
200057
200121
200130
200179
200474
200524
200768
208721
209142
232304
232425
244010
300182
301938
302821
303107
319128
321072
327008
327341
327373
328005
328120
328594
329626
333333
335291
339678
352839
361141
393049
402079
402280
405009
432044
441391
441746
445152
450195
451008
451065
452206
462748
481325
484048
487278
490646
495355
532010
551860
553103
554094
601493
641816
678016
681150
681292
681642
720042
722207
723047
730911
752674
752912
775256
782169
782963
802442
823236
853649
891616
891617
891618
898061
900004
900468
901897
902513
907599
920153
920255
920262
921004
921179
921195
921209
921218
921227
921232
921247
921391
921438
921832
922063
922200
922310
924105
924177
924395
924680
925031
925078
925081
925088
925190
928586
931186
931816
932737
943013
953103
954492
958237
968225
968325
968449
968618
968821
980131
980340
980783
982586
985066
995010
995172
995434
995582
997059
— Product Information Requirements, Mail Entry and Payment Technology, 10-10-19