{
    "callsign": "OTC7748",
    "number": "7748",
    "airline_code": "OTC",
    "airport_codes": "ZBHH-ZSNJ",
    "_airport_codes_iata": "HET-NKG",
    "_airports": [
        {
            "name": "Hohhot Shengle International Airport",
            "icao": "ZBHH",
            "iata": "HET",
            "location": "Inner Mongolia",
            "countryiso2": "CN",
            "lat": 40.478056,
            "lon": 111.568889,
            "alt_feet": 3385.0,
            "alt_meters": 1031.75
        },
        {
            "name": "Nanjing Lukou Airport",
            "icao": "ZSNJ",
            "iata": "NKG",
            "location": "Nanjing",
            "countryiso2": "CN",
            "lat": 31.742001,
            "lon": 118.862,
            "alt_feet": 49.0,
            "alt_meters": 14.94
        }
    ]
}