Alex Salter, from broadband measurement firm Sam Knows, said the "phone tax" was unlikely to provide enough money to fund access for all parts of the UK.
It follows comments earlier this year from digital review boss Lord Carter that there will "certainly be 25% to 30% of the country where there will be no economic case for building a next-generation fixed network".
Last night Berwick MP Sir Alan Beith called on the Government to make its digital plans more inclusive.
Sir Alan said: "The emphasis is on getting fibre optic into urban areas and bigger towns yet the Government has not found a way to ensure rural areas get high-speed broadband – but rural areas need help because this technology is vital for businesses to survive and grown in these communities.
"The landline levy will be a tax on all but will only help benefit those who already have access to good broadband services, and won’t necessarily help rural internet users."
The Commission for Rural Communities said that although take up in the countryside was increasing it was important the Government maintained its commitment.
A spokesman said: "We recognise how important broadband is for people living and working in rural communities and are keen to ensure that rural areas are not excluded from the economic, social and cultural opportunities provided by broadband connectivity."
The need for region-wide super fast broadband was emphasised by Phil Renton, managing director at Newcastle IT firm Croft Technology. Mr Renton said: "Broadband has to be considered as an essential utility.
"Broadband is as important to a business as gas. electricity and running water and we desperately need to be in a position where, just like a tap, we can switch it on and have as much as we need."
A spokeswoman for North Tyneside Council said they would be looking for outside funding for their internet plans.
"On June 25, as part of our pre-procurement soft market testing exercise, about 100 representatives from potential providers, have been invited to an event at the council’s headquarters.
"This will inform the next stage of the project."
:: Click here to download the full report
Page 2: Crackdown on illegal downloads