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Fraud

Invalid USPS Corporate Account Numbers

Please 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 must be recycled.

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.

005984

006052

008346

008629

009501

009532

009985

010272

010797

011379

012203

012395

015424

016112

016849

018002

018217

018939

020133

022017

023001

023547

025110

026237

026646

026653

027033

043044

054292

060039

060332

061127

062094

066010

067088

067159

067344

068064

069600

069920

070449

070496

070747

071104

075395

075660

075803

076696

077392

077874

078024

079107

090226

092158

092377

092387

092784

093135

093149

093247

093324

093506

093702

095108

095302

095918

096929

097393

097571

097774

097779

098431

098844

100042

100444

100816

100857

100884

100947

104184

104230

104648

105611

108453

108823

112147

117782

118919

119449

119608

122281

142431

146131

146140

146141

146820

148421

148422

175072

191115

191268

192345

192406

195088

198252

207171

207873

210059

210095

210162

210315

210324

210340

210352

210354

210413

210487

210543

210546

210565

210574

210584

210598

210599

210608

210642

210833

212565

212847

212976

220241

220264

222274

232406

232601

235199

235342

235516

271197

275096

292535

299002

300001

301116

301686

301769

305818

320102

322003

322027

322434

322802

322870

323010

325134

326315

326406

326525

327347

330320

330352

335439

338105

338320

344025

344169

361362

374161

381102

381164

385002

410045

432902

432928

441572

445110

451050

451134

452207

452301

452951

453066

456049

466594

480095

481358

486341

488024

495134

495583

495584

496139

524003

531439

537268

544036

551073

553005

553736

585210

601099

604172

604184

604211

604652

605005

605842

606397

607043

607418

608005

613149

613155

617195

624074

627037

631025

631075

631205

631247

631382

631504

641188

666195

672015

672016

672029

680074

721072

730132

731045

731416

731974

735055

740899

741145

741361

741700

744143

750081

750099

752156

752681

757174

757582

760002

801410

801427

802888

809105

810001

826110

837030

841268

841366

851041

852231

852929

853159

853771

853920

853983

853984

856009

871036

891261

891293

891540

891614

891615

891619

898026

900260

901675

901899

902345

902626

906026

906929

911123

913172

913200

914247

917014

917703

920257

921358

926028

926057

926065

926072

926192

926522

927353

927629

931131

931568

933117

933511

935023

940558

940621

945445

945446

945883

945973

946249

946566

950540

950642

950946

958301

970363

970415

970557

970695

970716

970884

971002

972315

972932

973273

973275

981960

982444

982712

995014

995470

995548

995575

995583

995687

999203

999335