List of highways numbered 123

The following highways are numbered 123:

Canada

• Saskatchewan Highway 123

United States

• U.S. Route 123
• Alabama State Route 123
• Arkansas Highway 123
• California State Route 123
• Connecticut Route 123
• Florida State Road 123
• Georgia State Route 123
• Illinois Route 123
• Indiana State Road 123 (former)
• K-123 (Kansas highway)
• Kentucky Route 123
• Louisiana Highway 123
• Maine State Route 123
• Massachusetts Route 123
• M-123 (Michigan highway)
• Minnesota State Highway 123
• Missouri Route 123
• New Hampshire Route 123
  • New Hampshire Route 123A
• New York State Route 123
• Ohio State Route 123
• Oklahoma State Highway 123
• Pennsylvania Route 123 (former)
• Rhode Island Route 123
• South Dakota Highway 123
• Tennessee State Route 123
• Texas State Highway 123
  • Texas State Highway Loop 123
• Utah State Route 123
• Vermont Route 123
• Virginia State Route 123
• Washington State Route 123
• West Virginia Route 123
• Wisconsin Highway 123

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