Eugowra, Bribbaree, Cultowa and Gooloogong are the latest towns that have had their mobile coverage improved through the Federal Government's Mobile Black Spot Program.

The program was rolled out in 2015 and aims to improve mobile coverage and competition across Australia.

Optus Territory General Manager, Central West NSW Tom O'Dea said they jumped on board to build the towers to increase coverage and to help local communities.

Mr O'Dea said improved mobile coverage allows for businesses, farmers and people passing through more choice in service providers.

Federal Member for Calare Andrew Gee said the new base stations put into operation were very exciting as they allow people more choice and wider coverage.

The new base station at Eugowra is co-located with Optus and Vodafone.

Mr Gee said the co-located base stations are set to provide more value for customers and more value to the Mobile Black Spot Program.

"Improving mobile black spots are very important for regional Australia."

Mr Gee said the improvement of mobile black spots is also important for emergency services, tourism and local businesses.

The Calare electorate has been awarded $5 million from Round 4 of the program, and has had 36 new mobile sites become operational in recent years.

Round five of the Mobile Black Spot Program is open to applications.

Interested communities are encouraged to contact the mobile network operators and their local member to make their needs known.