The UK will fail to meet its broadband speed target set by the EU for 2020, according to a firm rolling out fibre optic broadband across Hull.
KC claims it is delivering faster speeds to the Northern city than are available anywhere else in the UK, and claims to be on course to meet European targets to provide speeds of at least 30 Mbps by 2020.
The East Yorkshire company also slammed the government after it was criticised over its alleged mismanagement of a project to roll out high speed broadband across rural Britain, awarding all 26 contracts to BT.
The Commons Public Accounts Committee added that BT had manipulated its "quasi-monopoly position" as the main provider, but was just one of two companies to enter the bidding process, Fujitsu later withdrawing.
Commercial providers see little incentive for rolling out such services to areas where few people live, so the government provided a subsidy of £230m for firms taking on the task, with an extra £250m available after 2015.
KC's Sean Royce suggested the model should either have been more competitive by excluding any public subsidy, or the government should have channeled more money into the scheme at the expense of other projects.
He said: "The mismanagement of the tender for rolling out superfast broadband and the failure to meet targets have raised a critical point - would this have happened if the project was operating on a pure commercial model, rather than being primarily funded by public subsidy? KC is rolling out fibre optic broadband in Hull, and we're delivering the fastest service in the UK.
"Superfast broadband is vital to the economic future of UK plc, and the economy at large.
"Assuming that public money must be used to support the project, the question is then why more hasn't been invested? £1.2bn has been given to BT for the rollout, but that's a paltry 2.6% of the estimated £46.2bn being funnelled into HS2.
"Superfast broadband is undoubtedly the more important of the two projects for the UK economy."