Its route number is a " violation " of the usual AASHTO numbering scheme, as there is no US 0 or US 100.
Its route number is a " violation " of the usual AASHTO numbering scheme, as it comes nowhere near its implied " parent ", US 12.
Its route number is a " violation " of the usual AASHTO numbering scheme, as it comes nowhere near its implied " parent ", U. S. Route 25.
0.010 seconds.