Credit Card Number (Discover)

Luhn 10 (remainder 0)

Validates using the Luhn 10 checksum.

\b6011-\d{4}-\d{4}-\d{4}\b

Matches a 16-digit number beginning with 6011, delimited by hyphen.

1

\b6011 \d{4} \d{4} \d{4}\b

Matches a 16-digit number beginning with 6011, delimited by space.

1

\b6011\d{12}\b

Matches a 16-digit number beginning with 6011, without a delimiter.

1

\b64[4-9]\d-\d{4}-\d{4}-\d{4}\b

Matches a 16-digit number beginning with 644, 645, 646, 647, 648, or 649, delimited by hyphen.

1

\b64[4-9]\d \d{4} \d{4} \d{4}\b

Matches a 16-digit number beginning with 644, 645, 646, 647, 648, or 649, delimited by space.

1

\b64[4-9]\d{13}\b

Matches a 16-digit number beginning with 644, 645, 646, 647, 648, or 649, without a delimiter.

1

\b65\d{2}-\d{4}-\d{4}-\d{4}\b

Matches a 16-digit number beginning with 65, delimited by hyphen.

1

\b65\d{2} \d{4} \d{4} \d{4}\b

Matches a 16-digit number beginning with 65, delimited by space.

1

\b65\d{14}\b

Matches a 16-digit number beginning with 65, without a delimiter.

1

6011([ -]?)0009([ -]?)9013([ -]?)9424

6011000990139424 delimited by space or hyphen.

6011([ -]?)1111([ -]?)1111([ -]?)1117

6011111111111117 delimited by space or hyphen.

6011([ -]?)1532([ -]?)1637([ -]?)1980

6011153216371980 delimited by space or hyphen.

6011([ -]?)6011([ -]?)6011([ -]?)6611

6011601160116611 delimited by space or hyphen.

6011([ -]?)6874([ -]?)8256([ -]?)4166

6011687482564166 delimited by space or hyphen.

6011([ -]?)8148([ -]?)3690([ -]?)5651

6011814836905651 delimited by space or hyphen.

6556([ -]?)4000([ -]?)0055([ -]?)1234

6556400000551234 delimited by space or hyphen.