3G UMTS Frequency Bands
4G LTE Frequency Bands
Unitel is the largest mobile network by subscribers and coverage operating in Lao PDR. The network has been in operation since 2002, formed as a joint venture between state-owned Lao Asia Telecommunication State Enterprise (51%) and Vietnam-based Viettel Group (49%). Viettel is a leading telecommunications group in Vietnam which has invested successfully in 9 countries across 3 continents.
The company provides 2G GSM services over the 900 and 1800 MHz band, and in October 2010 launched its 3G UMTS service over the B1 (2100 MHz) band. 4G LTE was launched by Unitel in June 2015 over the B3 (1800 MHz) band.