https://webservice.rakuten.co.jp/api/areacode/golfarea.html

area_codes.rb

module RakutenWebService
  module Gora
    module AreaCodes
      ALL=0
      HOKKAIDO=1
      AOMORI=2
      IWATE=3
      MIYAGI=4
      AKITA=5
      YAMAGATA=6
      FUKUSHIMA=7
      IBARAKI=8
      TOCHIGI=9
      GUNMA=10
      SAITAMA=11
      CHIBA=12
      TOKYO=13
      KANAGAWA=14
      NIIGATA=15
      TOYAMA=16
      ISHIKAWA=17
      FUKUI=18
      YAMANASHI=19
      NAGANO=20
      GIFU=21
      SHIZUOKA=22
      AICHI=23
      MIE=24
      SHIGA=25
      KYOTO=26
      OSAKA=27
      HYOGO=28
      NARA=29
      WAKAYAMA=30
      TOTTORI=31
      SHIMANE=32
      OKAYAMA=33
      HIROSHIMA=34
      YAMAGUCHI=35
      TOKUSHIMA=36
      KAGAWA=37
      EHIME=38
      KOCHI=39
      FUKUOKA=40
      SAGA=41
      NAGASAKI=42
      KUMAMOTO=43
      OITA=44
      MIYAZAKI=45
      KAGOSHIMA=46
      OKINAWA=47
      HOKKAIDO_TOHOKU=101
      KANTO=102
      HOKURIKU=103
      CHUBU=104
      KINKI=105
      CHUGOKU=106
      SHIKOKU=107
      KYUSHU_OKINAWA=108
      ABROAD=109
    end
  end
end