{ 
    "card_data" : { 
        "visa": {
            "prefix":[
                "4539",
                "4556",
                "4916",
                "4532",
                "4929",
                "40240071",
                "4485",
                "4716",
                "4i"
            ],
            "digitCount":16
        },

        "mastercard"  : {
            "prefix" : [ 
                "51",
                "52",
                "53",
                "54",
                "55"
            ],
            "digitCount":16

        },

        "amex": {
            "prefix":
            [
                "34",
                "37"
            ],
            "digitCount": 15
        },

        "discover":{
            "prefix" : ["6011"],
            "digitCount": 16
        },
        "diners":{
            "prefix":[
                "300",
                "301",
                "302",
                "303",
                "36",
                "38"
            ],
            "digitCount":16
        },

        "enRoute":{
            "prefix":[
                "2014",
                "2149"
            ],
            "digitCount":16
        },
        "jcb":{
            "prefix":[
                "35"
            ],

            "digitCount":16

        },

        "voyager":{
            "prefix":["8699"],
            "digitCount":16

        }
    }

}