The debit card numbers are numeric figures that are printed on the front side of a debit card. These numbers are not provided in a random fashion. There is a certain amount of logicality involved in the entire process of issuing debit card numbers.
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 six numbers that appear at the start of the debit card numbers are known as the BIN or the Bank Identification Number. The Bank Identification Number is used to find out which organization has issued the card. The remaining part of the debit card number is allotted by the entity that issues the card.
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 |
