Vehicle-mounted number plate

The utility model discloses a vehicle-mounted number plate which comprises a number plate support body, a number plate and a guiding fastener, a containing hole penetrating through the number plate support body is formed in the upper portion of the number plate support body in the width direction, and first strip-shaped through holes communicated with the containing hole are formed in the two opposite side walls of the number plate support body in the length direction respectively. The number plate is partially arranged in the containing hole, a first number area and a second number area are arranged on the number plate in the width direction in a spaced mode, the first number area and the second number area are used for containing a first telephone number and a second telephone number respectively, and second strip-shaped through holes corresponding to the first strip-shaped through holes are formed in the two side edges of the number plate respectively. The number of the guiding fasteners is two, and the gu