Credit Card Number (American Express)

Luhn 10 (remainder 0)

Validates using the Luhn 10 checksum.

\b3[47]\d{2} \d{6} \d{5}\b

Matches a 15-digit number of the format 34NN NNNNNN NNNNN or 37NN NNNNNN NNNNN delimited by space.

1

\b3[47]\d{2}-\d{6}-\d{5}\b

Matches a 15-digit number of the format 34NN-NNNNNN-NNNNN or 34NN-NNNNNN-NNNNN delimited by hyphen.

1

\b3[47]\d{13}\b

Matches a 15-digit number of the format 34NNNNNNNNNNNNN or 37NNNNNNNNNNNNN without a delimiter.

1

3400([- ]?)000000([- ]?)00009

340000000000009 delimited by space or hyphen.

3411([- ]?)111111([- ]?)11111

341111111111111 delimited by space or hyphen.

3434([- ]?)343434([- ]?)34343

343434343434343 delimited by space or hyphen.

3456([- ]?)789012([- ]?)34564

345678901234564 delimited by space or hyphen.

3456([- ]?)400000([- ]?)55123

345640000055123 delimited by space or hyphen.

3468([- ]?)276304([- ]?)35344

346827630435344 delimited by space or hyphen.

3700([- ]?)000000([ -]?)00002

370000000000002 delimited by space or hyphen.

3700([- ]?)002000([ -]?)00000

370000200000000 delimited by space or hyphen.

3704([- ]?)072699([ -]?)09809

370407269909809 delimited by space or hyphen.

3705([- ]?)560193([ -]?)09221

370556019309221 delimited by space or hyphen.

3714([- ]?)496353([ -]?)98431

371449635398431 delimited by space or hyphen.

3742([- ]?)000000([ -]?)00004

374200000000004 delimited by space or hyphen.

3756([- ]?)400000([ -]?)55123

375640000055123 delimited by space or hyphen.

3764([- ]?)622809([ -]?)21451

376462280921451 delimited by space or hyphen.

3777([- ]?)527498([ -]?)96404

377752749896404 delimited by space or hyphen.

3782([- ]?)822463([ -]?)10005

378282246310005 delimited by space or hyphen.

3787([- ]?)344936([ -]?)71000

378734493671000 delimited by space or hyphen.