The Julian Protectorate is a supra-polity integrating a double handful of polities.
The list of worlds that exist within the Protectorate (based on linked articles for worlds in the Wiki) is 441 worlds.
At least in MS Edge, the 'next' function to see worlds 201-400 (and then likely again for 401-441) does not work in the box listing planets. Something wrong with the display method chosen (or the implementation)
The entry for Sudan does neither reference Challenge 49 where the Julian Protectorate is described (the Protectorate page does) and I can't tell if Sudan is included in the list in the Protectorate due to the fact 241 of the entries I can't see (and it isn't a list that I can just edit the wiki, it's an automation feature that isn't working so I can't tell if Sudan is in the Protectorate list of planets in TravellerMap).
The article above, if you search for it, says 'in review'.
So this superstate may not be represented correctly on the map.