In recent years, the Internet and communication facilities in Nepal have developed at a faster pace. The Internet and communication service providers now have reached various parts of Nepal.
While you are in Nepal, you can purchase an Ncell or NTCSim card easily with just your passport and some photos. Ncell and NTC are the two dominant network service providers all over the country. If you are on a trekking trip, you will be able to access the Internet except in some very high-altitude remote regions. Also, teahouses in Mustang and Namche Bazar provide free internet services. In city areas, you can access free Internet services in cafes, restaurants, and hotels.