On Debit Card Numbers
The debit card numbers are the numeric figures that are printed on a debit card. All the debit card numbers have an internal structure to them. They have common numbering systems as well. The most important parts of the debit card numbers are the prefixes which are representative of the company that has issued the debit card.Prefixes of Debit Card Numbers
The prefixes of the debit card numbers are very crucial parts of the same. It is basically a series of numbers that appear at the starting of the debit card number. These prefixes are important as they are representative of the credit card network to which the particular debit card belongs.The following table provides the prefixes of the most well known debit card brands:
| Name | Prefix |
| American Express | 34, 37 |
| JCB | 35 |
| Bankcard | 5610, 560221-560225 |
| JCB | 1800,2131 |
| China Union Pay | 622 (622126-622925) |
| Laser | 6304, 6706, 6771, 6709 |
| Diners Club Carte Blanche | 300-305 |
| Maestro | 5020,5038,6304,6759 |
| MasterCard | 51-55 |
| Diners Club International | 36 |
| Solo | 6334, 6767 |
| Switch | 4903,4905,4911,4936,564182,633110,6333,6759 |
| Discover Card | 6011, 65 |
| Visa Electron | 417500,4917,4913,4508,4844 |
| Visa | 4 |