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Payment card numbers are found on payment cards, such as credit cards and debit cards, as well as stored-value cards, gift cards and other similar cards. Card issuers refer to the leading six digits on the card as an "issuer identification number (IIN)", or sometimes referred to as "bank identification number (BIN)". On rare occasions they are referred to as bank card numbers. The remaining numbers on the card are referred to as the primary account number or PAN. IINs and PANS have a certain level of internal structure and share a common numbering scheme. Bank card numbers are allocated in accordance with ISO/IEC 7812. This technical standard has two parts—Part 1 identifies the structure of the Issuer Identification Number. Part 2 identifies the application procedures and eligibility requirements for obtaining an IIN. The bank card number (or as it is more commonly known, the IIN) identifies the issuer of the card, which is then electronically associated by the issuing organization with one of its customers and then to the customer's designated bank accounts. In the case of stored-value type cards, there is no necessary association with a particular customer. ISO/IEC 7812 IINs are six digits in length,〔(【引用サイトリンク】 url = http://www.computersolving.com/computer-tips-tricks/what-your-credit-card-numbers-mean/ )〕 and can be up to 19 digits. The structure is 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〔(ISO/IEC 7812-1:2006 Identification cards — Identification of issuers — Part 1: Numbering system )〕 The bank 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 identifier for a bank account in the United States. == 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 its number of digits. Many card issuers print the entire IIN and account 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. On November 8, 2004, MasterCard and Diners Club formed an alliance. Diners Club cards issued in Canada and the United States start with 54 or 55 and are treated as MasterCards worldwide. International cards use the 36 prefix and are treated as MasterCards in Canada and the United States, but are treated as Diners Club cards elsewhere. Diners Club International's web site makes no reference to old 38 prefix numbers, and they can be presumed reissued under the 55 or 36 IIN prefix. Effective October 16, 2009, Diners Club cards beginning with 30, 36, 38 or 39 have been processed by Discover Card. On November 3rd 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 will become active 14th October 2016. Effective October 1, 2006, Discover began using the entire 65 prefix, not just 650. Also, similar to the MasterCard/Diners agreement, China Union Pay cards are now treated as Discover cards and accepted on the Discover network. Whilst the vast majority of Visa's account ranges describe 16 digit card numbers there are still a few (40 as of 11 Dec. 2013) account ranges dedicated to 13 digit PANs and several (439 as of 11 Dec. 2013) account ranges where the issuer 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 standard international Maestro proposition with the retention of a few residual country specific rules. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Bank card number」の詳細全文を読む スポンサード リンク
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