The following highways are numbered 23A:

United States

Maryland Route 23A Maryland ( ) is a U.S. state, state in the Mid-Atlantic (United States), Mid-Atlantic region of the United States. It shares borders with Virginia, West Virginia, and the District of Columbia to its south and west; Pennsylvania to its north; ...

(former) * N SPUR 23A

Nebraska Spur 23A Nebraska Connecting Link, Nebraska Spur, and Nebraska Recreation Road highways are a secondary part of the Nebraska highway system. They connect small towns and state parks to the primary Nebraska highway system. All of these highways are maint ...

County Route 23A (Monmouth County, New Jersey) The following is a list of County routes in New Jersey, county routes in Monmouth County, New Jersey, Monmouth County in the U.S. state of New Jersey. For more information on the county route system in New Jersey as a whole, including its history ...

New York State Route 23A New York State Route 23A (NY 23A) is an east–west state highway in Greene County, New York, in the United States. It serves as a alternate route of NY 23 through the northern Catskill Mountains. The route passes several of the ...

** County Route 23A (Rockland County, New York) ** County Route 23A (Schuyler County, New York) {{Road index, 023A, sd=none