Oxfordshire postcode districts

GL56 GL7 HP14 HP18 MK18 NN13 OX1 OX10 OX11 OX12 OX13 OX14 OX15 OX16 OX17 OX18 OX2 OX20 OX25 OX26 OX27 OX28 OX29 OX3 OX33 OX39 OX4 OX44 OX49 OX5 OX7 OX9 RG17 RG4 RG8 RG9 SN6 SN7