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You will see in downloaded JSON file all information about GEO:

[
    {
        "code": "AD",
        "name": "Andorra",
        "regions": [
            {
                "name": "Andorra la Vella",
                "code":118,
                "cities": [
                    {
                        "name": "Andorra la Vella",
                        "isps": [
                            "GSL Networks",
                            "Andorra Telecom, S.a.u.",
                            "Cyberzone"
                        ]
                    }
                ]
            },
            {
                "name": "XX",
                "cities": [
                    {
                        "name": "unknown",
                        "isps": [
                            "Andorra Telecom, S.a.u."
                        ]
                    }
                ]
            }
        ]
    },
    {
        "code": "AE",
        "name": "United Arab Emirates",
...

You will see in downloaded JSON file:

{
    "status": "error",
    "data": null,
    "errors": [
        {
            "message": "Error api key",
            "code": 503,
            "customData": null
        },
        {
            "message": "IP not allowed",
            "code": 503,
            "customData": null
        },
        {
            "message": "Request limit reached",
            "code": 503,
            "customData": null
        }
    ]
}

You will see in downloaded JSON file:

{
    "status": "error",
    "data": null,
    "errors": [
        {
            "message": "IP not allowed",
            "code": 503,
            "customData": null
        }
    ]
}