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.
006087
006213
006372
006400
006624
006635
006912
007015
008095
008265
008311
008372
008437
008462
008604
008740
008744
008873
009256
009271
009528
009540
009640
010361
010735
011403
013990
015660
018351
018369
020073
021332
022619
023056
023486
023554
025066
025330
025442
026044
026259
026280
026371
026604
026627
031001
031260
032142
038114
055204
060113
060114
060122
061584
064665
066406
067216
067245
069063
069077
069574
070368
070667
070742
076826
076865
077121
077934
079146
080164
080200
080667
080685
085210
085747
086090
088143
091860
092350
092717
097010
097250
098542
100413
100471
100669
101576
104194
104661
105006
108077
108820
109992
115246
118928
121273
122245
131353
132445
142590
142674
142775
142828
146822
156117
165039
183018
192435
197137
199063
207386
220756
263007
300164
301454
303520
304002
320177
322008
322522
326609
332990
335317
335878
336266
336297
337261
338324
339071
339701
354094
373057
378110
381994
431068
432350
443571
444104
445014
447101
452878
458105
462047
464118
480115
482629
483223
483398
483751
496184
503132
507005
514007
522001
527005
531769
544043
551059
591100
599571
600090
600099
600449
600641
603214
605103
608516
662201
665001
665010
666009
672010
708637
708649
730768
741585
743036
744002
750035
750172
752359
752911
770036
770887
773522
775048
785563
800149
801152
801657
802049
802060
802396
802641
805286
809177
809203
816116
826109
829123
852844
852926
852928
856115
895973
900001
900195
900492
900614
901254
901359
901447
901617
901799
904231
907407
911024
911149
913187
913551
915195
921295
921352
926303
927555
931738
931855
931881
933331
935130
940177
940249
941088
941178
941636
948274
950817
951115
951305
952222
967207
967346
968599
968628
968962
970332
972280
972910
980025
981485
982682
992156
992768
995952
995962
995970
997053
998344
— Product Information Requirements, Mail Entry and Payment Technology, 3-1-18