Route national 400
| Route Nationale 400 in France | |
| N 400 | |
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| Operator: | |
| Overall length: | 22 km |
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The Route nationale 400 , or N 400 or RN 400 for short , was a French national road .
The route ran over a length of 22 kilometers from Ceffonds to Brienne-le-Château .
The street number was added to the national road network in 1933. In 1973 it was downgraded to Département-Straße .
Web links
- Route nationale française on WikiSara, a list of all national roads (French)