Fallout 76 is out soon on November 14 and recently had a Beta test. Here is a useful Fallout 76 zone map that gives an idea of the level range for each zone.
Fallout 76 world map is huge and bigger than all the past Fallout game. You can get a look at the untouched world map from here, but there are no zones listed on it. This new map that is divided into zones comes courtesy of Reddit.
Fallout 76 Zone Map And Fallout 76 Zone Level Range Revealed
As you can see in the map above, even if it is user-made, it gives a good idea of which zone is best for a particular level. Since the B.E.T.A was pretty limited in term of the time given to the players, most users might have not made it out of The Forest zone. It is the introductory zone where you can try to level up to 10 before making it out.
Of course, Fallout 76 is open world so you are not restricted to a specific zone, but it is best to see the level requirement on the map if you are having a difficult time in making through the world. The full game will be released on November 14 for the PS4, Xbox One, and PC.