Some of the last rural parts of the eastern region have been connected to broadband with help from the East of England Development Agency (EEDA).
Eight communities across Cambs, Herts, Norfolk and Suffolk have been connected up after a deal between EEDA and BT.
The Broadband Gap project aimed to upgrade some of the last few telephone exchanges in the region, which would not otherwise have been upgraded.
Work began this summer and finished in September ahead of schedule.
The eight exchanges that have been connected up are: Knarr Cross and Six Mile Bottom in Cambridgeshire; Broadfield in Hertfordshire; Brandon Creek and Nordelph in Norfolk; and Burnt Fen, Linstead and Higham in Suffolk.
The new high speed service means that small and medium business businesses in these areas now have the capacity to run a number of larger business applications, such as video conferencing.