The Main road 403 () is a short bypass direction First class main road near NyÃÂregyháza, that connects the NyÃÂrgegyháza-kelet junction in M3 motorway to the Main road 4 near NyÃÂrmada. The road is long.
The road, as well as all other main roads in Hungary, is managed and maintained by Magyar Közút, a state owned company.