{
  "source": "Alibaba DataV GeoAtlas areas_v3 boundary endpoint",
  "source_tier": "map_boundary",
  "admin_version": "2026-09-15",
  "admin_code_basis": "six_digit_code_suffix_00_for_prefecture_view",
  "national_url": "https://geo.datav.aliyun.com/areas_v3/bound/100000_full.json",
  "fetched_at": "2026-09-15T15:58:52.478Z",
  "mainland_province_count": 31,
  "prefecture_unit_count": 337,
  "excluded_direct_unit_count": 116,
  "special_region_count": 3,
  "province_fetches": [
    {
      "province_code": "110000",
      "province_name": "北京市",
      "url": "https://geo.datav.aliyun.com/areas_v3/bound/110000_full.json",
      "child_count": 16,
      "city_count": 1,
      "child_level": "district"
    },
    {
      "province_code": "120000",
      "province_name": "天津市",
      "url": "https://geo.datav.aliyun.com/areas_v3/bound/120000_full.json",
      "child_count": 16,
      "city_count": 1,
      "child_level": "district"
    },
    {
      "province_code": "130000",
      "province_name": "河北省",
      "url": "https://geo.datav.aliyun.com/areas_v3/bound/130000_full.json",
      "child_count": 11,
      "city_count": 11,
      "child_level": "city"
    },
    {
      "province_code": "140000",
      "province_name": "山西省",
      "url": "https://geo.datav.aliyun.com/areas_v3/bound/140000_full.json",
      "child_count": 11,
      "city_count": 11,
      "child_level": "city"
    },
    {
      "province_code": "150000",
      "province_name": "内蒙古自治区",
      "url": "https://geo.datav.aliyun.com/areas_v3/bound/150000_full.json",
      "child_count": 12,
      "city_count": 12,
      "child_level": "city"
    },
    {
      "province_code": "210000",
      "province_name": "辽宁省",
      "url": "https://geo.datav.aliyun.com/areas_v3/bound/210000_full.json",
      "child_count": 14,
      "city_count": 14,
      "child_level": "city"
    },
    {
      "province_code": "220000",
      "province_name": "吉林省",
      "url": "https://geo.datav.aliyun.com/areas_v3/bound/220000_full.json",
      "child_count": 9,
      "city_count": 9,
      "child_level": "city"
    },
    {
      "province_code": "230000",
      "province_name": "黑龙江省",
      "url": "https://geo.datav.aliyun.com/areas_v3/bound/230000_full.json",
      "child_count": 13,
      "city_count": 13,
      "child_level": "city"
    },
    {
      "province_code": "310000",
      "province_name": "上海市",
      "url": "https://geo.datav.aliyun.com/areas_v3/bound/310000_full.json",
      "child_count": 16,
      "city_count": 1,
      "child_level": "district"
    },
    {
      "province_code": "320000",
      "province_name": "江苏省",
      "url": "https://geo.datav.aliyun.com/areas_v3/bound/320000_full.json",
      "child_count": 13,
      "city_count": 13,
      "child_level": "city"
    },
    {
      "province_code": "330000",
      "province_name": "浙江省",
      "url": "https://geo.datav.aliyun.com/areas_v3/bound/330000_full.json",
      "child_count": 11,
      "city_count": 11,
      "child_level": "city"
    },
    {
      "province_code": "340000",
      "province_name": "安徽省",
      "url": "https://geo.datav.aliyun.com/areas_v3/bound/340000_full.json",
      "child_count": 16,
      "city_count": 16,
      "child_level": "city"
    },
    {
      "province_code": "350000",
      "province_name": "福建省",
      "url": "https://geo.datav.aliyun.com/areas_v3/bound/350000_full.json",
      "child_count": 9,
      "city_count": 9,
      "child_level": "city"
    },
    {
      "province_code": "360000",
      "province_name": "江西省",
      "url": "https://geo.datav.aliyun.com/areas_v3/bound/360000_full.json",
      "child_count": 11,
      "city_count": 11,
      "child_level": "city"
    },
    {
      "province_code": "370000",
      "province_name": "山东省",
      "url": "https://geo.datav.aliyun.com/areas_v3/bound/370000_full.json",
      "child_count": 16,
      "city_count": 16,
      "child_level": "city"
    },
    {
      "province_code": "410000",
      "province_name": "河南省",
      "url": "https://geo.datav.aliyun.com/areas_v3/bound/410000_full.json",
      "child_count": 18,
      "city_count": 17,
      "child_level": "city"
    },
    {
      "province_code": "420000",
      "province_name": "湖北省",
      "url": "https://geo.datav.aliyun.com/areas_v3/bound/420000_full.json",
      "child_count": 17,
      "city_count": 13,
      "child_level": "city"
    },
    {
      "province_code": "430000",
      "province_name": "湖南省",
      "url": "https://geo.datav.aliyun.com/areas_v3/bound/430000_full.json",
      "child_count": 14,
      "city_count": 14,
      "child_level": "city"
    },
    {
      "province_code": "440000",
      "province_name": "广东省",
      "url": "https://geo.datav.aliyun.com/areas_v3/bound/440000_full.json",
      "child_count": 21,
      "city_count": 21,
      "child_level": "city"
    },
    {
      "province_code": "450000",
      "province_name": "广西壮族自治区",
      "url": "https://geo.datav.aliyun.com/areas_v3/bound/450000_full.json",
      "child_count": 14,
      "city_count": 14,
      "child_level": "city"
    },
    {
      "province_code": "460000",
      "province_name": "海南省",
      "url": "https://geo.datav.aliyun.com/areas_v3/bound/460000_full.json",
      "child_count": 19,
      "city_count": 4,
      "child_level": "city"
    },
    {
      "province_code": "500000",
      "province_name": "重庆市",
      "url": "https://geo.datav.aliyun.com/areas_v3/bound/500000_full.json",
      "child_count": 38,
      "city_count": 1,
      "child_level": "district"
    },
    {
      "province_code": "510000",
      "province_name": "四川省",
      "url": "https://geo.datav.aliyun.com/areas_v3/bound/510000_full.json",
      "child_count": 21,
      "city_count": 21,
      "child_level": "city"
    },
    {
      "province_code": "520000",
      "province_name": "贵州省",
      "url": "https://geo.datav.aliyun.com/areas_v3/bound/520000_full.json",
      "child_count": 9,
      "city_count": 9,
      "child_level": "city"
    },
    {
      "province_code": "530000",
      "province_name": "云南省",
      "url": "https://geo.datav.aliyun.com/areas_v3/bound/530000_full.json",
      "child_count": 16,
      "city_count": 16,
      "child_level": "city"
    },
    {
      "province_code": "540000",
      "province_name": "西藏自治区",
      "url": "https://geo.datav.aliyun.com/areas_v3/bound/540000_full.json",
      "child_count": 7,
      "city_count": 7,
      "child_level": "city"
    },
    {
      "province_code": "610000",
      "province_name": "陕西省",
      "url": "https://geo.datav.aliyun.com/areas_v3/bound/610000_full.json",
      "child_count": 10,
      "city_count": 10,
      "child_level": "city"
    },
    {
      "province_code": "620000",
      "province_name": "甘肃省",
      "url": "https://geo.datav.aliyun.com/areas_v3/bound/620000_full.json",
      "child_count": 14,
      "city_count": 14,
      "child_level": "city"
    },
    {
      "province_code": "630000",
      "province_name": "青海省",
      "url": "https://geo.datav.aliyun.com/areas_v3/bound/630000_full.json",
      "child_count": 8,
      "city_count": 8,
      "child_level": "city"
    },
    {
      "province_code": "640000",
      "province_name": "宁夏回族自治区",
      "url": "https://geo.datav.aliyun.com/areas_v3/bound/640000_full.json",
      "child_count": 5,
      "city_count": 5,
      "child_level": "city"
    },
    {
      "province_code": "650000",
      "province_name": "新疆维吾尔自治区",
      "url": "https://geo.datav.aliyun.com/areas_v3/bound/650000_full.json",
      "child_count": 24,
      "city_count": 14,
      "child_level": "city"
    }
  ],
  "notes": [
    "This is a versioned map baseline and must be reviewed against the current administrative division list before publication.",
    "Municipalities are represented at the prefecture view using their province boundary.",
    "Only six-digit codes ending in 00 are included in the prefecture catalogue; direct county-level units are retained in excluded-direct-units.json for auditability.",
    "The boundary source is used as map geometry; policy facts still require government or school sources."
  ]
}