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.
005433
007184
007377
008085
008487
008636
008727
009497
009539
009856
010745
010751
010800
011404
014830
015290
016480
018606
018863
018874
019066
019106
019118
019128
019477
019532
019733
021002
021040
021400
021607
021613
021883
022088
022129
022261
022470
022537
022559
022624
022732
022854
022999
023180
025002
025271
026042
026256
026410
026522
027093
028045
028682
038447
040140
046308
055067
055108
055155
060203
061056
065217
065334
065420
067011
071345
075058
075225
077587
078239
080284
080458
080715
080724
080960
085212
088529
090502
092168
093837
093918
094471
094539
096399
096420
098333
100417
106380
108460
109610
111763
112131
115415
115417
115654
115698
117100
117143
117648
118873
119003
119117
119339
121204
122409
123133
125061
128139
131482
133020
135122
142056
146361
156055
159096
165093
170191
171134
176031
176133
187074
192152
192754
200539
200545
208577
210192
232039
240002
240070
240115
240120
240303
240368
240514
240905
240907
241004
242001
242100
242300
242500
243900
245001
245110
245200
251001
252861
253001
253044
253055
253440
254006
254008
254014
254035
254060
254092
255001
256001
257100
261007
261705
263005
264001
265010
266005
267001
272142
272350
282809
282901
282936
286035
293279
301584
303103
312428
314723
327036
327836
330038
331250
334195
335038
336241
337145
337151
402145
402781
405084
410121
436003
452680
454530
454773
458127
460113
462243
467092
468228
480003
480046
480093
480113
480991
481284
481333
481346
486263
497251
500047
503002
515115
522025
527022
551079
551259
553041
553174
554842
600076
601415
601673
601787
606523
607122
607130
608011
608043
608109
608355
608553
622015
630001
631130
631651
633029
641232
641304
641569
641856
641878
658105
661033
661069
662128
662142
662252
662403
662519
672011
672070
685161
730247
735005
741488
741844
750173
751079
752035
752104
752146
771569
771625
781074
782215
786128
802393
810007
841162
850456
851047
852854
853096
856143
891570
891928
895112
895365
898017
898027
900384
900436
905125
906189
906247
906337
906355
906640
906833
906945
910390
913043
914980
915157
917619
920002
921219
921547
925071
926080
926594
926899
927435
931071
931875
931961
932587
937786
939005
940577
941444
946569
949661
950838
958412
968539
971034
980089
980667
982160
982283
992217
995124
995147
995269
995402
995487
995503
995560
995661
— Product Information Requirements, Mail Entry and Payment Technology, 3-28-19