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Aioichō (相生町), or officially Kanda-Aioichō (神田相生町) is a district of Chiyoda, Tokyo, Japan. Its postal code is 101-0029.
The closest station is Hibiya Line Akihabara Station, which is located in Kanda-Matsunagachō, Kanda-Hanaokachō and Kanda-Neribeichō. While Yamanote Line and Keihin-Tōhoku Line run in the district, JR Akihabara Station is located in Kanda-Hanaokachō.