<P> In addition, US 163, designated in 1970, is nowhere near US 63 . The short US 57, approved c. 1970, connects to Federal Highway 57 in Mexico, and lies west of former US 81 . </P> <P> Several routes approved since 1980 do not follow the numbering pattern: </P> <Ul> <Li> US 400, approved in 1994, has no "parent" since there is no US 0 or US 100 . </Li> <Li> US 412, approved c. 1982, is nowhere near US 12 . </Li> <Li> US 425, approved in 1989, is nowhere near US 25 . </Li> </Ul> <Li> US 400, approved in 1994, has no "parent" since there is no US 0 or US 100 . </Li>

Map of the united states with main highways