1. Callsigns of Japanese club stations with multi-operators:
    a. Prefix 8J     ex. 8J5HAM
    b. Suffix RL     ex. JA1RL
    c. Suffix of 3 (not 2 letters) - letters initiated by Y or Z       ex. JA7YAA

2. Japanese Prefecture/district Codes:
Area 1: (JA1 through JS1, 7J1-7N1, 7K2-7N4)
    CB: Chiba        GM: Gunma        HJ: Hachijo      IB: Ibaraki
    KN: Kanagawa     MY: Miyake       OH: Ohsima       ST: Saitama
    TG: Tochigi      TK: Tokyo        YN: Yamanashi
    MT: Minami-Torishima (JD1)        OG: Ogasawara (JD1)

Area 2: (JA2 through JS2 and 7J2)
    AC: Aichi        GF: Gifu         ME: Mie          SO: Shizuoka

Area 3: (JA3 through JS3 and 7J3)
    HG: Hyogo        KT: Kyoto        NR: Nara         OS: Osaka
    SI: Shiga        WK: Wakayama

Area 4: (JA4 through JS4 and 7J4)
    HS: Hiroshima    OY: Okayama      SN: Shimane      TT: Tottori
    YG: Yamaguchi

Area 5: (JA5 through JS5 and 7J5)
    EH: Ehime        KA: Kagawa       KC: Kochi        TS: Tokushima

Area 6: (JA6 through JS6 and 7J6)
    FO: Fukuoka      KG: Kagoshima    KM: Kumamoto     MZ: Miyazaki
    NS: Nagasaki     ON: Okinawa      OT: Oh-ita       SG: Saga
    TM: Tsusima

Area 7: (JA7 through JS7 and 7J7)
    AM: Aomori       AT: Akita        FS: Fukushima    IT: Iwate
    MG: Miyagi       YM: Yamagata

Area 8: (JA8 through JS8 and 7J8)
    AB: Abashiri     HD: Hidaka       HY: Hiyama       IR: Iburi
    IS: Ishikari     KK: Kamikawa     KR: Kushiro      NM: Nemuro
    OM: Oshima       RM: Rumoi        SB: Siribeshi    SC: Sorachi
    SY: Soya         TC: Tokachi

Area 9: (JA9 through JS9 and 7J9)
    FI: Fukui        IK: Ishikawa     TY: Toyama

Area Ø: (JAØ through JSØ and 7JØ)
    NI: Niigata      NN: Nagano

3. Continent Codes:
    AF: Africa          AS: Asia            EU: Europe
    NA: North America   OC: Oceania         SA: South America