How to write KOKUBU Oita-shi Oita in Japanese characters

How to write KOKUBU Oita-shi Oita in Japanese characters. The data come from Japan Post.

zipcode and address

KOKUBU（Inseart numbers and so on before the address）
Oita-shi, Oita
870-0864 Japan

Japanese Kanji

You can click/tap to copy Japanese Expression partially.
大分県大分市国分
8700864

Japanese Hiragana

おおいたけんおおいたしこくぶ

Japanese Katakana

オオイタケンオオイタシコクブ

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