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
007149
007171
008008
008025
008602
008731
008747
008763
008801
009015
015407
018398
019004
019406
019615
021199
021320
021414
025390
043307
047100
049317
050095
057019
058029
060205
060258
060659
063015
063453
065264
070931
070942
071118
071324
071516
075329
076056
076148
076253
077267
080489
080623
082421
085222
085401
088658
088769
089332
098629
098976
100851
105380
108110
115279
115371
117493
119073
122303
122304
124131
135193
139022
142114
142365
142516
142608
146027
146351
146538
150075
152832
153086
156156
174088
176142
185034
185077
187080
192598
192906
197203
200183
200296
208744
210447
210799
235249
253400
270001
272255
277021
282770
300635
327627
329050
330242
331109
332513
333209
336179
336240
336618
337122
339119
405400
410094
421029
432006
436170
441553
443560
445157
448702
452008
452708
468555
479601
480017
480320
481206
481261
481971
482990
487281
488279
488726
490715
492039
494259
551091
553053
553748
554228
554327
596444
601107
601138
601695
605825
606024
606068
607268
607349
608018
608021
608024
608031
608083
608084
608089
608092
608094
608115
608201
608440
608554
608567
618137
627047
631129
633030
633660
658134
660226
681288
685153
730153
731355
740013
741203
752197
752902
760507
775356
778065
778362
785555
787039
787734
801403
803102
813278
820221
820828
841206
841996
856495
900005
900023
900355
900896
901354
901828
906338
906460
910386
913550
913588
914001
920088
921071
922037
926165
931556
932007
932571
933441
934289
941642
951389
954102
959102
967035
968354
968461
968526
968555
968557
968582
968695
968974
969176
969204
969206
974003
980025
980115
980616
981828
982434
982614
995004
995005
995108
995358
995455
995881
— Product Information Requirements, Mail Entry and Payment Technology, 12-20-18