District 01, 02 ,03, 04, 05

Postal code in the range of 01XXXX - 16XXXX,
e.g. Marina Blvd, Raffles Place, Tanjong Pagar, Keppel, Queenstown, Tiong Bahru, Bukit Merah, Harbourfront, Sentosa Cove, West Coast, Clementi, Buona Vista