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HD
tier: area
9 districts · 7199 postcodes total
HD1
— 841 postcodes
HD2
— 633 postcodes
HD3
— 723 postcodes
HD4
— 733 postcodes
HD5
— 720 postcodes
HD6
— 799 postcodes
HD7
— 601 postcodes
HD8
— 944 postcodes
HD9
— 1205 postcodes