List of highways numbered 20B The following highways are numbered 20B: New Zealand[edit] New Zealand State Highway 20B United States[edit] Nebraska Highway 20B (former) New York State Route 20B (former) County Route 20B (Greene County, New York) List of roads or other routes with the same name This article includes a list of roads, streets, highways, or other routes that are associated with the same title. If an internal link led you here, you may wish to change the link to point directly to the intended article.