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.
005575
006086
006130
006161
007201
014048
019321
019913
021041
021052
022446
023067
025391
031255
044085
050085
061637
066142
070191
075081
075264
078877
080167
080254
091505
092176
096468
097923
100493
102669
105395
105402
108892
115024
115110
117080
117709
117979
119452
119466
121260
121285
132060
152218
152726
154019
159061
159277
165333
193359
200241
207865
209294
220002
220284
220427
220723
221522
226083
235435
254016
255045
276020
296488
301325
301404
301429
306305
320013
322063
322366
322617
328424
331013
331629
332179
333039
334055
336079
337149
340563
352833
356072
381569
400036
400076
402010
402277
402315
402336
405062
407004
432754
436175
441733
441773
443113
460169
463077
480966
482601
485140
489459
494170
527037
532542
544084
551086
551360
551379
551477
551761
551842
553046
553740
554022
554308
554935
554960
585254
600069
601125
602697
609351
641641
662152
722090
723085
724024
731042
747001
750049
750379
752207
770212
770791
784611
801600
807032
841259
841419
852227
871030
900171
902484
902627
902645
906604
910368
914379
915559
921433
921792
930052
931643
937465
945016
945293
945456
945762
945895
946124
946232
946277
946330
946331
946377
946408
946479
946492
946502
946524
946557
946568
946573
946576
946582
946603
947029
947116
947255
948145
948309
948410
948457
948461
948605
948631
948694
948711
948727
948770
948864
952297
958100
958105
958394
958477
958480
958675
958757
958789
958891
967199
967428
968253
968560
968715
968942
970324
970561
970807
980084
980203
980234
980296
980405
980538
980925
980963
982039
982172
982267
982404
982435
982556
982693
984005
984063
984066
989083
990829
992538
992637
992773
997131
998185
— Product Information Requirements, Mail Entry and Payment Technology, 8-25-22