http://www.arabiciptv.net/ search a little, selling just one country is not profitable for Providers, most want to watch something else on a single sub and not have 2-3 different providers.

Its going to be hard to find an arabic only iptv provider but i believe they do exist but i cant think of any right now.

I would recommand asking around to see who has the most channels in arabic.

I sell Vader and we have a 103 Arabic channels available, as well as countless other HD channels. Plus you get to connect 5 devices across 3 ip address with 1 sub.