web3.js@0.2x.x web3.eth.iban.fromAddress

var i = web3.eth.iban.fromAddress('0x00c5496aee77c1ba1f0854206a26dda82a81d6d8');

console.log(i.toString()); // 'XE7338O073KYGTWWZN0F2WZ0R8PX5ZPPZS

参考