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
008308
008602
008731
008747
008763
008801
008943
009015
009259
009606
009632
011221
019004
019615
021199
021414
022092
022125
025390
028111
038655
043307
047100
049317
050095
057019
058029
060205
063015
063453
064202
065264
069217
070931
070942
071118
071324
075329
076253
077267
080623
082421
088769
089332
098206
098467
098976
100720
100851
105380
105804
108110
115279
115371
117493
117968
119073
135193
139022
142365
142516
142608
146027
146351
146538
152797
171010
176142
187080
192598
197203
198194
200183
208744
210447
210799
220105
235249
253400
272255
277021
282770
282896
300215
300511
300635
330242
331109
331312
332513
333209
334133
335194
336179
336240
336618
337122
339119
405400
410016
410094
421029
432006
436170
441553
445157
448702
450218
452008
468555
479601
480017
481206
481261
481971
482990
487281
488279
488726
490715
494259
503033
522018
541270
551091
553053
554228
596444
600858
601096
601107
601138
601695
605133
605825
606024
606068
607268
607349
608018
608021
608024
608031
608083
608084
608089
608092
608094
608115
608201
608440
608554
608567
633030
685153
723053
730153
731355
731433
740013
741203
752197
752902
760507
775356
778065
778362
785337
785555
787039
787734
801403
813278
841206
841996
856495
891804
900005
901828
906338
910386
913550
913588
914001
914096
921071
926165
926238
928590
930405
931556
932007
932571
933441
934289
941069
941642
951389
954102
959102
967035
967442
968354
968557
968695
968844
969176
969206
974003
980025
980115
980616
982434
982614
995004
995005
995108
995358
995455
995767
— Product Information Requirements, Mail Entry and Payment Technology, 12-6-18