The Burrowye site is close to where the Upper Murray bushfire crossed from NSW into Victoria early last year.

Improving coverage at Koetong will end a Murray Valley Highway dead zone and the other two have also long suffered.

Member for Farrer Sussan Ley said she first proposed Carabost, which is east of the Hume Highway on the road to Tumbarumba, get blackspot help seven years ago

"When our mobile blackspot program started back in 2014 Carabost was among the first locations I put forward, so to say it's exciting to finally deliver some coverage here is really understating it," Ms Ley said.

IN OTHER NEWS:

Mayors of Alpine, Greater Hume and Towong shires welcomed the towers which were announced by the federal government's Regional Communications Minister Bridget McKenzie on Friday.

Alpine leader John Forsyth said phone towers were vital for remote areas.

"These things are always welcome, improving infrastructure in the regions is very welcome," Cr Forsyth said.

"You rarely find a blackspot in the city unless you're in a very deep car park."

Greater Hume mayor Heather Wilton said "council had raised concerns at a lack of coverage for Carabost at every opportunity, so we're delighted those representations have been successful".

Towong civic chief David Wortmann noted the Burrowye tower was in addition to one at nearby Mount Alfred which was part of earlier funding.

Telstra could not say when the towers would be built, but based on previous rollouts they are not expected to be operating by next summer.

However, the towers at Koetong and Burrowye are worth $1.7 million in total with their erection to be jointly funded by federal and Victorian governments and Telstra.