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.
005014
005258
010123
018082
019528
023090
023149
023360
025369
025496
026293
026322
026567
027267
027796
028135
060041
064363
067175
067341
068040
071338
071630
077002
077085
077131
077261
077277
077545
077664
079104
080277
080343
080532
081090
085052
085137
085221
085281
085790
085834
085932
088334
093120
103963
105333
105528
108354
110840
112146
119592
124021
125250
152086
165190
192498
197094
220010
220465
223083
275999
280360
301342
303301
305007
305093
311364
321005
321009
321010
321014
321017
321019
321025
321029
321030
321035
323481
327007
327037
327040
327047
327050
327051
327052
327054
327058
327062
327069
327077
327163
327293
327294
327313
327323
327327
327329
327333
327336
327338
327339
327340
327342
327343
327344
327346
327348
327349
327400
327579
327714
327749
328029
328046
328054
328069
328091
328094
328097
328101
328105
328118
328119
328121
328122
328132
328136
328142
328144
328146
328148
328154
328156
328162
328164
328427
328428
328429
328434
328437
328439
328440
328443
328444
328948
328992
329001
329006
329010
329031
329043
329048
329053
329054
329055
329056
329062
329081
329085
329111
329115
329501
331125
332981
335086
335123
335124
335126
335127
335128
335129
335130
335133
335134
335137
335140
335142
335145
335146
335149
335195
335248
335285
335301
335315
335318
335319
335322
335323
335328
340377
342042
342045
352526
380137
386013
386016
387011
388051
389018
391166
392530
392587
392639
392647
481154
482175
488054
490548
496160
506010
512004
530020
532789
544037
554013
554018
571001
598868
601152
601365
605158
606779
607799
608410
641249
660050
730045
730050
730091
730243
730335
730371
730398
730784
740680
740799
751004
770020
770069
770087
770122
775055
785712
794383
801420
801448
801655
802200
802984
804215
805006
805459
809207
809231
809300
810005
811049
813272
816007
816440
840072
841376
851012
852883
853970
856235
895935
901383
901432
903733
907819
912246
912339
914091
915494
917036
920192
921278
921908
932634
933162
935193
941089
967319
967356
968294
968364
968482
968822
969072
969079
970975
974158
980994
982366
982549
995261
995477
995688
997067
997160
— Product Information Requirements, Mail Entry and Payment Technology, 6-18-20