621700开头是什么银行很多人对这个问题比较感兴趣,下面让我们一起来看621700寮澶存g惰℃缓璁鹃惰,希望可以帮助到你。

621700开头是什么银行

621700寮?澶存???g??惰??℃??缓璁鹃?惰?????

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621700寮?澶存???涔??惰?

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621700????釜?版?圭???惰??★?

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621700开头是什么银行

以621700开头的银行卡卡号是属于中国建设银行的龙卡储蓄卡。
银行卡前6位是发卡银行识别号(BIN),它是信用卡组织给发卡银行某一种卡片的识别号码,这个号码可以提供的信息包括这张卡属于哪个信用卡组织,这张卡由哪个银行发行,这张卡是什么类型的卡片。
银行卡的最后一位是校验位,是通过一定的算法计算出的一个特殊值,用于卡号验证。从第7位到倒数第2位是发卡银行使用的,包含的内容包括你说的开户行位置(发卡城市),卡号大序列等等,但是具体内容由发卡银行自己定义。
比如民生借记卡、浦发银行东方借记卡的第7~8位代表发卡城市;工银牡丹灵通卡7~10位代表发卡城市。比如: 工行95588 7~10位代表发卡城市。