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
008329
008437
008462
008496
008604
008740
008873
009256
009271
009528
009540
010361
010630
010735
011173
011403
015660
018149
018164
018257
018336
018369
018573
018623
018627
018671
018917
018927
019075
019175
019404
019459
019515
019518
019520
019527
021332
028941
029026
029307
030436
031001
031260
043303
055204
057084
060001
060083
060113
060114
060122
060200
060548
061584
064910
066406
067216
067245
068298
068364
069077
069816
070057
070368
070667
070742
075638
076579
076826
077121
077215
077256
077777
078041
079146
080164
085747
086090
088143
088373
090118
096667
097250
098835
100656
100669
101489
104194
105006
105552
105998
108077
108214
108345
108820
108872
109840
109992
117048
117166
117262
119070
121273
122245
130027
131353
132445
142002
142674
152043
156117
165039
165106
165306
197137
199063
207386
210414
220160
220756
221193
240088
263007
272051
274012
300044
300164
300559
301454
302804
306257
322008
322522
326017
328018
331218
331283
331850
332990
334215
335317
335878
336266
336297
337261
339071
339284
339701
340496
347052
354094
373057
378110
381994
383126
431068
432350
432519
441947
443571
444104
445014
445071
447101
451011
458105
462047
464118
464193
480115
483223
483751
496184
503132
507005
514007
522001
527005
531158
531359
531505
531644
531769
531779
543720
544043
553021
553124
553350
554210
554405
570204
599571
600004
600099
600449
600641
600740
603214
607482
608516
641078
641376
665010
666009
670007
672010
672261
708637
730768
731046
731052
743036
743075
750172
750393
750620
752196
752359
752895
752911
757156
770036
770887
771323
773522
775048
775057
775308
776012
786126
793062
800003
801152
802036
802049
802060
802072
805286
816116
826109
829123
833992
836325
840076
840077
840079
840080
840081
841344
841359
841360
841361
841362
841363
841365
843009
843011
844008
846014
846015
846016
846017
847028
847029
847030
847031
851055
852926
852928
884101
895973
900001
900195
900209
900492
901359
901404
901617
903840
904231
907407
907842
911024
911149
913187
913551
913881
914284
916026
921352
924628
926051
926303
930337
931738
931881
933331
935130
935241
941210
941636
948274
948873
949374
949502
950049
950817
951305
952222
967207
967346
968270
968599
968628
968962
971137
972578
972910
980145
980170
981879
981881
982236
982653
982682
992156
992768
995751
995952
995962
995970
997124
997297
— Product Information Requirements, Mail Entry and Payment Technology, 3-29-18