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
008437
008462
008604
008740
008873
009256
009271
009528
009540
010361
010735
011403
013990
015660
018369
018623
019175
019404
021023
021332
028145
028941
031001
031260
055204
057084
060001
060113
060114
060122
061584
064665
066406
067216
067245
069063
069077
070368
070667
070742
076579
076826
077121
077777
077934
079146
080164
080200
085747
086090
088143
088373
090118
096667
097010
097250
098542
100656
100669
101489
101576
104194
105006
105552
108077
108820
108872
109840
109992
117048
117262
118928
119070
121265
121273
122245
130027
131353
132445
142674
156117
165039
165306
181006
197137
199063
207386
220160
220756
221193
263007
300164
301454
302804
304002
306257
322008
322522
326017
328018
332990
335317
335878
336266
336297
337261
338324
339071
339701
347052
354094
373057
378110
381994
383126
431068
432350
432519
441947
443571
444104
445014
447101
451011
458105
462047
464118
480115
482629
483223
483751
496184
503132
507005
514007
522001
527005
531769
543720
544043
551059
553350
554210
554405
591100
599571
600004
600090
600099
600449
600641
603214
608516
662201
665010
666009
672010
708637
708649
730768
731046
741585
743036
743075
750172
750393
752196
752359
752911
770036
770887
771323
773522
775048
775057
775308
776012
785563
801152
802049
802060
805286
816116
826109
829123
836325
841344
851055
852926
852928
856115
884101
895973
900001
900195
900492
901254
901359
901404
901447
901617
901799
903840
904231
907407
911024
911149
913187
913551
913881
916026
921352
926303
930337
931738
931855
931881
933331
935130
940177
940249
941210
941636
948274
950049
950817
951115
951305
952222
967207
967346
968599
968628
968962
970332
971137
972280
972910
980025
980145
980170
981485
981879
981881
982236
982653
982682
992156
992768
995751
995952
995962
995970
997053
997297
998344
— Product Information Requirements, Mail Entry and Payment Technology, 3-15-18