The abbreviation for Massachusetts is MA.
The correct spelling of the proper noun is Massachusetts, a US state.
IN is the abbreviation for the state of Indiana.
Quincy, Massechussetts
None. But it is the abbreviation of Alberta, a Canadian province.
It is not a state abbreviation in the US.
The abbreviation for the state of Missouri is MO.
NC is the state abbreviation for North Carolina.
The state of Kentucky.
IL is the state abbreviation for Illinois.
MS is the abbreviation for the state of Mississippi.
The abbreviation for the state of Pennsylvania is PA.
The abbreviation MO is the postal abbreviation for Missouri.