diff --git a/data/korea_business_areacode.json b/data/korea_business_areacode.json
new file mode 100644
index 0000000..c8721c6
--- /dev/null
+++ b/data/korea_business_areacode.json
@@ -0,0 +1,173 @@
+{
+    "seoul": [
+        100,
+        101,
+        104,
+        105,
+        106,
+        107,
+        108,
+        109,
+        110,
+        113,
+        114,
+        117,
+        119,
+        120,
+        145,
+        146,
+        147,
+        201,
+        204,
+        206,
+        209,
+        210,
+        211,
+        212,
+        214,
+        215,
+        217,
+        220,
+        230
+    ],
+    "incheon": [
+        121,
+        122,
+        131,
+        137,
+        150,
+        234,
+        800
+    ],
+    "busan": [
+        600,
+        602,
+        603,
+        605,
+        606,
+        607,
+        617,
+        621,
+        623
+    ],
+    "daegu": [
+        500,
+        502,
+        503,
+        504,
+        514,
+        516
+    ],
+    "gwangju": [
+        400,
+        408,
+        409,
+        410,
+        419
+    ],
+    "daejeon": [
+        300,
+        305,
+        314,
+        318
+    ],
+    "ulsan": [
+        610,
+        620
+    ],
+    "sejong": [
+        320
+    ],
+    "gyeonggi": [
+        123,
+        124,
+        125,
+        126,
+        127,
+        128,
+        129,
+        130,
+        132,
+        134,
+        135,
+        138,
+        140,
+        141,
+        142,
+        143,
+        144,
+        149,
+        151,
+        152,
+        200,
+        231,
+        232,
+        233,
+        235,
+        236
+    ],
+    "gangwon": [
+        221,
+        222,
+        223,
+        224,
+        225,
+        226,
+        227
+    ],
+    "chungbuk": [
+        301,
+        302,
+        303,
+        304,
+        317
+    ],
+    "chungnam": [
+        307,
+        308,
+        310,
+        311,
+        312,
+        313,
+        316,
+        319
+    ],
+    "jeonbuk": [
+        401,
+        402,
+        403,
+        404,
+        407,
+        418
+    ],
+    "jeonnam": [
+        411,
+        412,
+        415,
+        416,
+        417
+    ],
+    "gyeongbuk": [
+        505,
+        506,
+        507,
+        508,
+        510,
+        511,
+        512,
+        513,
+        515
+    ],
+    "gyeongnam": [
+        608,
+        609,
+        611,
+        612,
+        613,
+        615,
+        624
+    ],
+    "jeju": [
+        616
+    ]
+}