I–27 Numbering Act of 2023 This bill designates the future interstate highway system portions of the Ports-to-Plains Corridor within the states of Texas and New Mexico as Interstate Route I–27. The bill excludes two portions of the Texas and New Mexico corridor. Texas Routes 158 and 349 via I–20 from Sterling City to Lamesa are designated as Interstate Route I–227. U.S. Route 287 from Dumas, Texas to the border between Texas and Oklahoma is designated as Interstate Route I–327.