Telephone Services:
Landline and mobile phone services are available in Nepal. Network covers Kathmandu, major cities and towns and most of Nepal, except some rural Himalayan places. Nepal Telecommunications Corporation at Tripureshwor, Kathmandu, is the national service provider.
There are also private service providers. Hotels and private communication centers also provide long distance telephone and fax facilities.
For calling from outside, country code for Nepal is 977 and the area code for Kathmandu is 1.
For other city codes are:

To call Nepal from other countries:
00 + country code (977) + city code + telephone number
Example to call Pokhara: 00-977-61-421123
Example to call from North America : 011-977-61-421123

Telephone area codes:

Internet Services:
Internet is widely accessible in Kathmandu. There are countless Internet cafes and communication centers in the Valley and around the country. Wi-fi services are also provided at various hotels and restaurants. Visitors only have to find a place they are most comfortable in to use the facilities to keep in touch with home. Internet services are also offered by hotels.

Postal Services:
The Central Post Office located near Dharahara Tower, is open from 10 a.m. to 5 p.m. Sunday through Friday. The counters are open from 10 a.m. to 4 p.m. and provide stamps, postcards and aerograms. Post Restante is available from Sunday through Friday from 10 a.m. to 5 p.m. Express Mail Service (EMS) is available at GPO and at Thamel, Basantapur and airport postal counters.