A payment card number , primary account number ( PAN ), or simply a card number , is the card identification found one payment cards, Such As credit cards and debit cards , as well as stored-value cards , gift cards and other similar cards. In some situations the card number is referred to as a bank card number . The card number is a credit card issued by the issuing company. The card number prefix identifies the issuer of the card, And the digits which follow a single account which is associated with the issuing organization of one of its customers and then the customer’s designated bank accounts . In the case of stored-value type cards, the association with a particular customer is only made if the prepaid card is reloadable. Card numbers are Allocated in according with ISO / IEC 7812 . The card number is usually prominently embossed on the front of a payment card.
The payment card number differs from the Bank Identifier Code (BIC / ISO 9362, a normalized code Also Known As Business Identifier Code, Bank International Code and SWIFT code ). It also differs from Universal Payment Identification Code , another for a bank account in the United States.
The leading six digits of the card number is the ” identification identification number (BIN)”. The remaining numbers on the card except the last digit are the individual account identification number. The last digit is the Luhn check digit. IINs and PANS have a certain level of internal structure and a common numbering scheme set by ISO / IEC 7812. Payment card numbers can be up to 19 digits, as follows:
- A six-digit  Issuer Identification Number (IIN), the first digit of which is the Major Industry Identifier (MII)
- A variable length (up to 12 digits) individual account identifier
- A single check digit calculated using the Luhn algorithm 
Issuer identification number (IIN)
The first six digits of a card number (including the initial MII digit) are known as the issuer identification number (IIN). These identify the card issuing institution that issued the card to the card holder. The rest of the number is allocated by the card issuer. The card number’s length is icts number of digits. Many card issuers print the entire IIN and count number on their card.
In the United States, IINs are also used in NCPDP pharmacy claims to identify processors, and are printed on all pharmacy insurance cards. IINs are the primary routing mechanism for real-time claims.
The ISO Register of Issuer Identification Numbers database is managed by the American Bankers Association . ABA is the Registration Authority for this standard and is responsible for allocating IINs to issuers.
Online merchants may use IIN lookups to help validate transactions. For example, if a card ‘s IIN indicates a bank in one country, while the customer’ s billing address is in another, the transaction may call for extra scrutiny.
|Issuing network||IIN ranges||active||length||Validation|
|American Express||34, 37 ||Yes||15 ||Luhn algorithm|
|Bankcard ||5610, 560221-560225||No.||16||Luhn algorithm|
|China UnionPay||62 ||Yes||16-19 [ citation needed ]||Luhn algorithm|
|Diners Club Carte Blanche||300-305||Yes||14||Luhn algorithm|
|Diners Club enRoute||2014, 2149||No.||15||No validation|
|Diners Club International ||300-305, 309, 36||Yes||14||Luhn algorithm|
|38-39 ||Yes||16-19 ||Luhn algorithm|
|Diners Club United States & Canada ||54, 55 (MasterCard co-branded)||Yes||16||Luhn algorithm|
|Discover Card ||6011, 622126-622925, 644-649, 65||Yes||16, 19||Luhn algorithm|
|InstaPayment||637-639 [ citation needed ]||Yes||16||Luhn algorithm|
|JCB||3528-3589 ||Yes||16||Luhn algorithm|
|Laser||6304, 6706, 6771, 6709||No ||16-19||Luhn algorithm|
|Maestro||50, 56-58, 6||Yes||12-19 ||Luhn algorithm|
|4XXX, 4175, 4571 (Visa co-branded)||Yes||16||Luhn algorithm|
|MIR||2200 – 2204||Yes||16||Luhn algorithm|
|MasterCard||2221-2720||Yes 2017- ||16||Luhn algorithm|
|Solo||6334, 6767||No.||16, 18, 19||Luhn algorithm|
|Switch||4903, 4905, 4911, 4936, 564182, 633110, 6333, 6759||No.||16, 18, 19||Luhn algorithm|
|Visa||4 (including related / partner brands: Dankort, Electron, etc.)||Yes||13, 16, 19||Luhn algorithm|
|Verve||506099-506198, 650002-650027||Yes||16, 19||Luhn algorithm|
|CARDGUARD EAD BG ILS||5392||Yes||16||Luhn algorithm|
On November 8, 2004, MasterCard and Diners Club formed an alliance. Diners Club cards issued in Canada and the United States with MasterCards worldwide. International cards use the 36 MasterCards in Canada and the United States, but are treated as Diners Club cards elsewhere. Diners Club International’s prefix numbers, and they can be presumed reissued under the 55 or 36 IIN prefix. Effective October 16, 2009, Diners Club cards begin with 30, 36, 38 or 39 have been processed by Discover Card. 
On November 3, 2014, MasterCard announced that they were introducing a new series of BIN ranges that begin with a “2” (222100-272099). The “2” series BINs will be processed the same as the “51-55” series BINs are today. They became active 14 October 2016.
On July 23, 2014 JSC NSPK was established in the Russian Federation. The National Stocks Payment System (NSPK) is the operator of the Mir National Payment System . The main initiatives of NSPK are to create the national payment system infrastructure and to issue a national payment card Mir .
Effective October 1, 2006, Discover started using the entire 65 prefix, not just 650. Also, similar to the MasterCard / Diners agreement, China Union.
While the vast majority of visa’s account ranges describe 16 digit card numbers there are still a few (40 as of December 11, 2013) account ranges dedicated to 13 digit PANs and several (439 as of 11 Dec. Can mix 13 and 16 digit card numbers. Visa’s VPay brand can specify PAN lengths from 13 to 19 digits and so card numbers of more than 16 digits are now being seen.
Switch was re-branded as Maestro in mid-2007.  In 2011, UK domestic Maestro (formerly Switch) was aligned with the international standard Maestro proposal with the retention of a residual country specific rules.
EMV Certification requires acceptance of a 19-digit Visa card (ADVT 6.1.1 Test Case 2) and Discover Card (E2E Test Plan v1.3, Test Case 06).
Canadian bank card numbering
Bank card numbers issued by Canadian banks also follow a pattern for their systems:
|CIBC Convenience Card||4506 ( Interac & Visa Debit )||16 digits|
|Royal Bank of Canada Client Card||45||16 digits|
|TD Canada Trust Access Card||4724 ( Interac & Visa Debit )||16 digits|
|Scotiabank Scotia Card||4536||16 digits|
|BMO ABM Card||500||16 digits|
|HSBC Canada Card||56||16 digits|
To reduce the risk of credit card fraud , various techniques are used to prevent the dissemination of bank card numbers. These include:
- Format-preserving encryption : in which the account number is replaced with a strongly encrypted version which retains the format of the card data. IT systems and applications. A point of sale (POS) is a commonly used form of data protection. AES-FF1 Format-Preserving Encryption is defined in NIST Specification SP800-38G.
- PAN truncation : in which only some of the digits on a card are displayed or printed on receipts. The PCI DSS standard dictates that only the first six and last four digits of the PAN may be printed on a receipt or displayed in boxes. US federal law ( FACTA ) allows only the display of the last 5 digits. In order to comply with both PCI DSS requirements and US federal law, the last four digits are provided to allow the user to identify the card used.
- Tokenization : in which an artificial account number (token) is printed, stored or transmitted in place of the true account number.
- Bank account
- Carding (fraud)
- Card security code
- International Bank Account Number
- Routing transit number
- ISO 9362 -SWIFT Code or BIC Code
- Jump up^ “What your credit card numbers mean” . Retrieved 2010-12-07 .
- Jump up^ ISO / IEC 7812-1: 2006 Identification cards – Identification of issuers – Part 1: Numbering system
- Jump up^ “Card Security Features” (PDF) . American Express. January 2001. Archived from the original (PDF) on 5 March 2006 . Retrieved 2006-04-05.
- Jump up^ “American Express Fraud Prevention Handbook” (PDF) . p. 13 . Retrieved 2006-04-05 .
- Jump up^ “Bankcard Association of Australia” . Archived from the original on 6 April 2006 . Retrieved 2017-02-03 .
- Jump up^ “China UnionPay Cards” . Retrieved 2016-02-08 .
- Jump up^ “MasterCard Diners Club Alliance” . Retrieved 2006-04-05 .
- Jump up^ “Discover Bulletin for VARs Feb 2015” (PDF) . Archived from the original (PDF) on March 4, 2016 . Retrieved 2015-08-14 .
- Jump up^ “February 2017 Compliance Update” (PDF) .
- Jump up^ “Diners Club – Fraud Management” . Retrieved 2007-01-26 .
- Jump up^ “Discover Network – IIN Range Update 8.2” (PDF) . September 2008 . Retrieved 2008-10-23 .
- Jump up^ “Discover Network IIN Range Update, 9.2” (PDF) . September 2009.
- Jump up^ “Laser Card Services Ltd.” . 28 February 2009.
- Jump up^ “Maestro Global Rules” (PDF) . MasterCard . 11 November 2011.
- Jump up^ https://www.mastercard.us/en-us/issuers/get-support/2-series-bin-expansion.html
- Jump up^ “Discover Network – IIN Range Update 9.1” (PDF) . October 2008 . Retrieved 2009-01-28 .
- Jump up^ “Switch to Maestro” . Archived from the original on 8 August 2010 . Retrieved 2010-08-20 .