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.
006009
006206
006353
007184
007377
008125
008201
008209
008636
009497
009539
009546
012324
015407
015601
018398
018606
019066
019406
021199
021320
021414
021485
025390
029789
033008
038582
046308
055054
055067
055108
055155
060100
060258
060659
061351
064620
067011
068058
069146
069544
070942
071165
071516
076056
076148
077587
080623
080724
080960
085222
088658
093837
096399
097923
098629
098976
100417
100851
108226
109610
111517
112119
112131
113330
115415
117193
117696
119567
121204
122303
122304
123133
124131
125061
125072
132138
133020
142056
142114
142608
150075
152832
153086
156156
165093
170191
174088
175085
176053
176142
185034
185077
187074
192754
192906
197032
200296
210192
210447
210799
264004
270001
272255
272350
277021
282901
282936
293279
311084
327627
329050
329052
336179
336240
336241
336280
336618
337122
346010
402145
441553
443560
452708
454269
454530
458127
467092
468555
480320
480991
481261
488324
490715
492039
500047
553748
554327
591955
601415
601673
605155
605649
606024
606068
607268
607349
608018
608021
608024
608031
608083
608084
608089
608092
608094
608201
608440
608554
608567
618137
626090
627047
630587
631129
631802
633660
648112
658134
660226
672011
672070
681288
685298
701292
730153
735005
740013
741203
750173
752104
752902
778362
782215
785555
801403
802393
803102
813278
820221
820828
832494
837156
841162
850456
856143
891204
900023
900355
906460
913550
920002
920088
921219
921547
922037
926165
926892
931556
932587
939005
941444
949054
949661
958400
958412
968461
968526
968539
968555
968582
968974
969204
970673
970691
980025
980667
981828
982700
995108
995269
995402
995487
995504
995555
995881
— Product Information Requirements, Mail Entry and Payment Technology, 1-31-19