Home Postcodes by state TAS 7248 Postcode 7248 7248 is the postcode for 5 localities in TAS: Invermay, Mayfield, Mowbray, Newnham and Rocherlea. Localities with postcode 7248InvermayTASMayfieldTASMowbrayTASNewnhamTASRocherleaTAS Postcode 7248 State or territory Tasmania (TAS) Localities 5 Council area Launceston Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 7216 · Postcode 7249