following highways are numbered 181: Prince Edward Island Route 181 Route 181-CH in Araucanía Region Guanabacoa–Cotorro Road (2–181) National Highway 181 (India)...

highways are numbered 1. For roads numbered A1, see list of A1 roads. For roads numbered B1, see list of B1 roads. For roads numbered M1, see List of...

United States Numbered Highways are components of a national system of highways that is administered by the American Association of State Highway and Transportation...

primary Interstate Highways in the Interstate Highway System, a network of freeways in the United States. These primary highways are assigned one- or...

Three-digit numbered highways are secondary routes or branches of a main highway. The secondary route number is prefixed to the number of the main highway. For...

The following highways are numbered 66: Barkly Highway (Northern Territory) Riddoch Highway Alberta Highway 66 Highway 66 (Ontario) Autopista Sancti Spiritus...

The following highways are numbered 401: British Columbia Highway 401 (former) Manitoba Provincial Road 401 Ontario Highway 401 National Route 401 Road...

The following are a list of highways designated in the numeric 1000–1499 range. The roads listed below are all in the United States, primarily Louisiana...

The following highways are numbered 466: Manitoba Provincial Road 466 Japan National Route 466 U.S. Route 466 (former) Florida State Road 466 (former)...

The following are a list of highways designated in the numeric 1500-1999 range. The roads listed below are all in the United States, primarily Texas, and...