The public communications networks include public mobile communications networks and public fixed wireless communications networks.

Public mobile communications

For the purpose of providing public mobile electronic communications service on a technologically neutral basis, RATEL has issued individual licenses based on public bidding procedure for three operators: Telecommunications Company Telekom Srbija Joint Stock Co., Belgrade, Yettel Ltd. Belgrade and A1 Srbija ltd. Belgrade for the following frequency bands: 800 MHz, 900 MHz, 1800 MHz and 2100 MHz. In addition, licenses for two virtual mobile operators Globaltel and Mundio Mobile d.o.o. have also been issued.

Radio frequency bands and technologies in use by operators Telekom Srbija, YETTEL and A1 SRBIJA:

	UL (MHz)	DL (MHz)	Technology used
Telekom Srbija	832-842	791-801	LTE(4G)
	894,5-904,1	939,5-949,1	GSM(2G), UMTS(3G)
	1730-1750	1825-1845	GSM(2G), LTE(4G)
	1935 - 1950	2125 - 2140	UMTS(3G), LTE(4G)
	1905 - 1910		No use
YETTEL	842-852	801-811	LTE(4G)
	904,3-913,9	949,3-958,9	GSM(2G), UMTS(3G)
	1710-1730	1805-1825	GSM(2G), LTE(4G)
	1920-1935*	2110-2125*	UMTS(3G), LTE(4G)
	1900 - 1905		No use
A1 SRBIJA	852-862	811-821	LTE(4G)
	890,1-894,3	935,1-939,3	GSM(2G), UMTS(3G)
	1750-1780	1845-1875	GSM(2G), LTE(4G)
	1950 - 1965	2140 - 2155	UMTS(3G), LTE(4G)
	1910 - 1915		No use

*YETTEL temporarily uses 1965-1980/2155-2170 MHz.